/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:01:38,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:01:38,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:01:38,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:01:38,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:01:38,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:01:38,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:01:38,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:01:38,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:01:38,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:01:38,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:01:38,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:01:38,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:01:38,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:01:38,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:01:38,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:01:38,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:01:38,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:01:38,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:01:38,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:01:38,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:01:38,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:01:38,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:01:38,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:01:38,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:01:38,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:01:38,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:01:38,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:01:38,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:01:38,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:01:38,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:01:38,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:01:38,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:01:38,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:01:38,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:01:38,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:01:38,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:01:38,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:01:38,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:01:38,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:01:38,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:01:38,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:01:38,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:01:38,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:01:38,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:01:38,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:01:38,609 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:01:38,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:01:38,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:01:38,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:01:38,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:01:38,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:01:38,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:01:38,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:01:38,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:01:38,613 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:01:38,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:01:38,613 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:01:38,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:01:38,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:01:38,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:01:38,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:01:38,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:01:38,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:01:38,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:01:38,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:01:38,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:01:38,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:01:38,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:01:38,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:01:38,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:01:38,616 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:01:39,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:01:39,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:01:39,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:01:39,084 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:01:39,085 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:01:39,086 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-09-24 18:01:39,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ae0359f1/b54c14e93a444247a1554f73f67d1ba9/FLAGbce6447a4 [2020-09-24 18:01:39,830 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:01:39,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-09-24 18:01:39,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ae0359f1/b54c14e93a444247a1554f73f67d1ba9/FLAGbce6447a4 [2020-09-24 18:01:40,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ae0359f1/b54c14e93a444247a1554f73f67d1ba9 [2020-09-24 18:01:40,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:01:40,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:01:40,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:01:40,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:01:40,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:01:40,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40, skipping insertion in model container [2020-09-24 18:01:40,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:01:40,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:01:40,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:01:40,667 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:01:40,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:01:40,846 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:01:40,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40 WrapperNode [2020-09-24 18:01:40,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:01:40,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:01:40,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:01:40,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:01:40,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (1/1) ... [2020-09-24 18:01:40,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:01:40,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:01:40,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:01:40,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:01:40,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:01:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:01:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:01:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:01:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:01:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:01:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:01:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:01:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:01:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:01:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:01:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:01:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:01:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:01:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:01:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:01:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:01:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:01:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:01:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:01:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:01:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:01:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:01:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:01:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:01:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:01:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:01:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:01:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:01:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:01:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:01:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:01:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:01:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:01:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:01:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:01:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:01:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:01:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:01:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:01:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:01:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:01:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:01:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:01:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:01:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:01:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:01:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:01:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:01:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:01:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:01:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:01:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:01:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:01:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:01:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:01:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:01:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:01:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:01:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:01:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:01:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:01:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:01:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:01:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:01:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:01:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:01:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:01:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:01:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:01:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:01:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:01:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:01:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:01:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:01:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:01:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:01:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:01:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:01:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:01:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:01:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:01:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:01:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:01:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:01:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:01:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:01:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:01:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:01:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:01:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:01:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:01:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:01:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:01:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:01:42,302 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:01:42,303 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:01:42,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:42 BoogieIcfgContainer [2020-09-24 18:01:42,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:01:42,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:01:42,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:01:42,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:01:42,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:01:40" (1/3) ... [2020-09-24 18:01:42,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187ad78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:42, skipping insertion in model container [2020-09-24 18:01:42,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:40" (2/3) ... [2020-09-24 18:01:42,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187ad78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:42, skipping insertion in model container [2020-09-24 18:01:42,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:42" (3/3) ... [2020-09-24 18:01:42,321 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-09-24 18:01:42,334 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:01:42,345 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:01:42,369 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:01:42,406 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:01:42,406 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:01:42,406 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:01:42,406 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:01:42,407 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:01:42,407 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:01:42,407 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:01:42,407 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:01:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-24 18:01:42,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:01:42,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:42,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:42,464 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:42,473 INFO L82 PathProgramCache]: Analyzing trace with hash 396628182, now seen corresponding path program 1 times [2020-09-24 18:01:42,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:42,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371846348] [2020-09-24 18:01:42,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:44,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:47,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:47,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:01:47,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:47,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 18:01:47,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:47,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:47,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:01:47,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:47,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:01:48,309 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:48,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:48,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:48,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:48,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:48,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:48,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 18:01:48,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:48,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:48,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:48,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:48,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:48,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:48,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:48,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:48,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:48,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:48,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:48,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:48,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:48,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:48,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:48,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:48,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:48,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:48,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:48,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:48,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:48,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:48,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:48,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:48,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:48,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:48,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:48,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:48,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:48,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:48,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:48,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:48,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:48,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:48,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:01:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:48,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:48,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:48,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:48,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:48,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:48,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:48,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:01:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:48,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:48,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:48,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:48,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:48,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:48,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:48,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:48,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:01:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:48,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:48,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:48,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:48,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:48,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:48,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:48,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:48,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:48,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:48,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:48,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:01:48,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371846348] [2020-09-24 18:01:48,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:48,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:01:48,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689060222] [2020-09-24 18:01:48,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:01:48,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:48,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:01:48,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:01:48,647 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-24 18:01:50,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:50,138 INFO L93 Difference]: Finished difference Result 512 states and 611 transitions. [2020-09-24 18:01:50,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:01:50,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:01:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:50,162 INFO L225 Difference]: With dead ends: 512 [2020-09-24 18:01:50,163 INFO L226 Difference]: Without dead ends: 315 [2020-09-24 18:01:50,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:01:50,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-24 18:01:50,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-09-24 18:01:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-24 18:01:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 296 transitions. [2020-09-24 18:01:50,298 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 296 transitions. Word has length 153 [2020-09-24 18:01:50,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:50,299 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 296 transitions. [2020-09-24 18:01:50,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:01:50,300 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 296 transitions. [2020-09-24 18:01:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:01:50,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:50,306 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] [2020-09-24 18:01:50,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:01:50,306 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:50,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:50,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1765968117, now seen corresponding path program 1 times [2020-09-24 18:01:50,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:50,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202141363] [2020-09-24 18:01:50,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:52,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:01:55,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:55,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-24 18:01:55,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:01:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:01:55,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,689 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:55,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:55,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:55,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:55,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 18:01:55,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:55,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:55,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:55,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:55,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:55,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:55,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:55,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:55,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:55,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:55,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:55,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:55,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:55,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:55,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:55,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:55,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:55,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:55,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:55,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:55,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:55,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:55,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:55,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:01:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:55,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:55,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:55,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:55,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:01:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:55,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:55,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:01:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:55,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:55,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:55,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:55,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:55,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:01:55,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202141363] [2020-09-24 18:01:55,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:55,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:01:55,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878234556] [2020-09-24 18:01:55,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:01:55,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:55,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:01:55,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:01:55,913 INFO L87 Difference]: Start difference. First operand 271 states and 296 transitions. Second operand 4 states. [2020-09-24 18:01:56,589 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:01:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:57,760 INFO L93 Difference]: Finished difference Result 419 states and 474 transitions. [2020-09-24 18:01:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:01:57,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:01:57,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:57,767 INFO L225 Difference]: With dead ends: 419 [2020-09-24 18:01:57,767 INFO L226 Difference]: Without dead ends: 298 [2020-09-24 18:01:57,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-24 18:01:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-09-24 18:01:57,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-24 18:01:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-09-24 18:01:57,818 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 154 [2020-09-24 18:01:57,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:57,819 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-09-24 18:01:57,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:01:57,819 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-09-24 18:01:57,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 18:01:57,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:57,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:57,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:01:57,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:57,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:57,824 INFO L82 PathProgramCache]: Analyzing trace with hash 308056419, now seen corresponding path program 1 times [2020-09-24 18:01:57,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:57,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803507132] [2020-09-24 18:01:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:57,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:58,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:00,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:00,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:02:00,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:02:00,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2918 [2020-09-24 18:02:00,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:02:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:02:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:01,143 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:01,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-24 18:02:01,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:01,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:01,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:01,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:01,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:01,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:01,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:01,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:01,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:01,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:01,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:01,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:01,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:01,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:02:01,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:01,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:01,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:01,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:01,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:01,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:01,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:02:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:02:01,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:01,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:02:01,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:01,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:02:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:01,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:01,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:01,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:01,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:01,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:02:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:01,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:01,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:01,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:02:01,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:02:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:01,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:01,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:01,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:01,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:01,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:01,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:01,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:01,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:01,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803507132] [2020-09-24 18:02:01,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:01,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:02:01,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092763369] [2020-09-24 18:02:01,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:02:01,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:01,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:02:01,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:01,473 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 5 states. [2020-09-24 18:02:02,021 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:04,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:04,152 INFO L93 Difference]: Finished difference Result 633 states and 736 transitions. [2020-09-24 18:02:04,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:02:04,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 18:02:04,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:04,160 INFO L225 Difference]: With dead ends: 633 [2020-09-24 18:02:04,160 INFO L226 Difference]: Without dead ends: 482 [2020-09-24 18:02:04,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:02:04,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-24 18:02:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 402. [2020-09-24 18:02:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-24 18:02:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 447 transitions. [2020-09-24 18:02:04,229 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 447 transitions. Word has length 167 [2020-09-24 18:02:04,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:04,230 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 447 transitions. [2020-09-24 18:02:04,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:02:04,230 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 447 transitions. [2020-09-24 18:02:04,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 18:02:04,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:04,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:04,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:02:04,234 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:04,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:04,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1931820316, now seen corresponding path program 1 times [2020-09-24 18:02:04,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:04,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749602932] [2020-09-24 18:02:04,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:02:06,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1814 [2020-09-24 18:02:06,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:02:06,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 18:02:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 18:02:06,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:06,454 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:06,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:06,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 18:02:06,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 18:02:06,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:06,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:06,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:06,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:06,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:06,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:06,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:06,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:02:06,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:06,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:06,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:06,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:06,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:06,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:06,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:02:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:02:06,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:02:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:02:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:02:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:06,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:06,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:02:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:06,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:02:06,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:02:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:06,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 18:02:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:06,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:06,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:06,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:06,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:06,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:06,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:06,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:06,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:06,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749602932] [2020-09-24 18:02:06,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:06,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:02:06,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012731845] [2020-09-24 18:02:06,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:02:06,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:06,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:02:06,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:02:06,962 INFO L87 Difference]: Start difference. First operand 402 states and 447 transitions. Second operand 9 states. [2020-09-24 18:02:07,466 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:09,562 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:10,195 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 18:02:10,569 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:10,991 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:11,311 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:02:11,644 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:02:11,930 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:12,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:12,860 INFO L93 Difference]: Finished difference Result 1072 states and 1291 transitions. [2020-09-24 18:02:12,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:02:12,862 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 18:02:12,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:12,869 INFO L225 Difference]: With dead ends: 1072 [2020-09-24 18:02:12,869 INFO L226 Difference]: Without dead ends: 780 [2020-09-24 18:02:12,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:02:12,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-09-24 18:02:12,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 681. [2020-09-24 18:02:13,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-09-24 18:02:13,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 777 transitions. [2020-09-24 18:02:13,005 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 777 transitions. Word has length 172 [2020-09-24 18:02:13,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:13,005 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 777 transitions. [2020-09-24 18:02:13,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:02:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 777 transitions. [2020-09-24 18:02:13,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:02:13,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:13,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:13,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:02:13,011 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:13,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2092402527, now seen corresponding path program 1 times [2020-09-24 18:02:13,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:13,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932396587] [2020-09-24 18:02:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:14,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:15,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 18:02:18,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:02:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 18:02:18,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:02:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 18:02:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:02:18,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,335 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:18,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:18,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 18:02:18,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:18,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:18,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:18,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:18,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:18,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:02:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:02:18,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:02:18,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:18,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:02:18,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:02:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:02:18,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:18,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 18:02:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:02:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:18,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:02:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:18,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:18,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 18:02:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:18,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:18,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:18,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:18,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:18,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:18,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:18,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:18,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:18,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:18,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:18,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:18,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932396587] [2020-09-24 18:02:18,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:18,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:02:18,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116648121] [2020-09-24 18:02:18,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:02:18,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:18,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:02:18,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:02:18,596 INFO L87 Difference]: Start difference. First operand 681 states and 777 transitions. Second operand 6 states. [2020-09-24 18:02:19,311 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:21,790 INFO L93 Difference]: Finished difference Result 1630 states and 1964 transitions. [2020-09-24 18:02:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:02:21,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-24 18:02:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:21,799 INFO L225 Difference]: With dead ends: 1630 [2020-09-24 18:02:21,800 INFO L226 Difference]: Without dead ends: 1059 [2020-09-24 18:02:21,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:02:21,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2020-09-24 18:02:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 963. [2020-09-24 18:02:21,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-09-24 18:02:22,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1100 transitions. [2020-09-24 18:02:22,008 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1100 transitions. Word has length 177 [2020-09-24 18:02:22,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:22,009 INFO L479 AbstractCegarLoop]: Abstraction has 963 states and 1100 transitions. [2020-09-24 18:02:22,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:02:22,010 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1100 transitions. [2020-09-24 18:02:22,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:02:22,015 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:22,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:22,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:02:22,016 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:22,017 INFO L82 PathProgramCache]: Analyzing trace with hash 230448906, now seen corresponding path program 1 times [2020-09-24 18:02:22,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:22,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146847805] [2020-09-24 18:02:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:02:22,112 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:02:22,112 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:02:22,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:02:22,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:02:22 BoogieIcfgContainer [2020-09-24 18:02:22,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:02:22,163 INFO L168 Benchmark]: Toolchain (without parser) took 42068.63 ms. Allocated memory was 140.5 MB in the beginning and 701.5 MB in the end (delta: 561.0 MB). Free memory was 102.6 MB in the beginning and 237.3 MB in the end (delta: -134.7 MB). Peak memory consumption was 426.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:22,164 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:02:22,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.83 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.0 MB in the beginning and 174.0 MB in the end (delta: -72.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:22,172 INFO L168 Benchmark]: Boogie Preprocessor took 102.49 ms. Allocated memory is still 205.5 MB. Free memory was 174.0 MB in the beginning and 169.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:22,173 INFO L168 Benchmark]: RCFGBuilder took 1360.44 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 169.2 MB in the beginning and 175.1 MB in the end (delta: -5.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:22,174 INFO L168 Benchmark]: TraceAbstraction took 39847.34 ms. Allocated memory was 237.0 MB in the beginning and 701.5 MB in the end (delta: 464.5 MB). Free memory was 175.1 MB in the beginning and 237.3 MB in the end (delta: -62.2 MB). Peak memory consumption was 402.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:22,187 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.83 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.0 MB in the beginning and 174.0 MB in the end (delta: -72.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.49 ms. Allocated memory is still 205.5 MB. Free memory was 174.0 MB in the beginning and 169.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1360.44 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 169.2 MB in the beginning and 175.1 MB in the end (delta: -5.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39847.34 ms. Allocated memory was 237.0 MB in the beginning and 701.5 MB in the end (delta: 464.5 MB). Free memory was 175.1 MB in the beginning and 237.3 MB in the end (delta: -62.2 MB). Peak memory consumption was 402.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 [L538] COND TRUE 1 [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) [L550] CALL waterRise() [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 [L550] RET waterRise() [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) [L578] CALL stopSystem() [L508] COND FALSE !(\read(pumpRunning)) [L515] systemActive = 0 [L578] RET stopSystem() [L585] CALL timeShift() [L334] COND FALSE !(\read(pumpRunning)) [L341] COND FALSE !(\read(systemActive)) [L349] CALL __utac_acc__Specification3_spec__1() [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L190] CALL, EXPR isMethaneLevelCritical() [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L196] CALL, EXPR getWaterLevel() [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); [L196] RET, EXPR getWaterLevel() [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L200] CALL, EXPR isPumpRunning() [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); [L200] RET, EXPR isPumpRunning() [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) [L206] CALL __automaton_fail() [L221] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1292 SDtfs, 1914 SDslu, 1067 SDs, 0 SdLazy, 2779 SolverSat, 634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 356 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 314034 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...