/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=HIGHLEXORDER --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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:28:36,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:28:36,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:28:36,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:28:36,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:28:36,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:28:36,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:28:36,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:28:36,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:28:36,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:28:36,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:28:36,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:28:36,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:28:36,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:28:36,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:28:36,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:28:36,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:28:36,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:28:36,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:28:36,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:28:36,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:28:36,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:28:36,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:28:36,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:28:36,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:28:36,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:28:36,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:28:36,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:28:36,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:28:36,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:28:36,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:28:36,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:28:36,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:28:36,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:28:36,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:28:36,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:28:36,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:28:36,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:28:36,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:28:36,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:28:36,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:28:36,584 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 22:28:36,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:28:36,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:28:36,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:28:36,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:28:36,635 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:28:36,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:28:36,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:28:36,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:28:36,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:28:36,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:28:36,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:28:36,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:28:36,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:28:36,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:28:36,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:28:36,638 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:28:36,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:28:36,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:28:36,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:28:36,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:28:36,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:28:36,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:28:36,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:28:36,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:28:36,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:28:36,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:28:36,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:28:36,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:28:36,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:28:36,645 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:28:37,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:28:37,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:28:37,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:28:37,116 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:28:37,117 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:28:37,118 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-09-24 22:28:37,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/633264f03/deb0a58a79724445b2279d989c8b1c30/FLAG3a1fca0dc [2020-09-24 22:28:37,837 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:28:37,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-09-24 22:28:37,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/633264f03/deb0a58a79724445b2279d989c8b1c30/FLAG3a1fca0dc [2020-09-24 22:28:38,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/633264f03/deb0a58a79724445b2279d989c8b1c30 [2020-09-24 22:28:38,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:28:38,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:28:38,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:38,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:28:38,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:28:38,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38, skipping insertion in model container [2020-09-24 22:28:38,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:28:38,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:28:38,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:38,585 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:28:38,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:38,851 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:28:38,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38 WrapperNode [2020-09-24 22:28:38,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:38,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:28:38,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:28:38,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:28:38,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (1/1) ... [2020-09-24 22:28:38,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:28:38,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:28:38,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:28:38,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:28:38,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (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 22:28:39,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:28:39,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:28:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:28:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:28:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:28:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:28:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:28:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:28:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:28:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:28:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:28:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:28:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:28:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:28:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:28:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:28:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:28:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:28:39,042 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:28:39,042 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:28:39,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:28:39,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:28:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:28:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:28:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:28:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:28:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:28:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:28:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:28:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:28:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:28:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:28:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:28:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:28:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:28:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:28:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:28:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:28:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:28:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:28:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:28:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:28:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:28:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:28:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:28:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:28:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:28:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:28:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:28:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:28:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:28:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:28:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:28:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:28:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:28:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:28:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:28:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:28:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:28:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:28:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:28:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:28:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:28:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:28:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:28:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:28:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:28:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:28:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:28:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:28:40,273 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:28:40,276 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:28:40,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:40 BoogieIcfgContainer [2020-09-24 22:28:40,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:28:40,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:28:40,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:28:40,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:28:40,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:28:38" (1/3) ... [2020-09-24 22:28:40,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f7802b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:40, skipping insertion in model container [2020-09-24 22:28:40,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:38" (2/3) ... [2020-09-24 22:28:40,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f7802b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:40, skipping insertion in model container [2020-09-24 22:28:40,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:40" (3/3) ... [2020-09-24 22:28:40,296 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2020-09-24 22:28:40,307 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:28:40,319 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:28:40,341 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:28:40,373 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:28:40,373 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:28:40,373 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:28:40,373 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:28:40,373 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:28:40,373 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:28:40,373 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:28:40,374 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:28:40,402 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-24 22:28:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:28:40,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:40,423 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 22:28:40,423 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:40,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:40,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1572596205, now seen corresponding path program 1 times [2020-09-24 22:28:40,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:40,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259401742] [2020-09-24 22:28:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:40,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:41,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:42,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:45,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:45,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:28:45,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:45,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-24 22:28:45,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:45,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:28:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:45,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 22:28:46,455 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:46,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:46,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:46,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:46,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-24 22:28:46,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:46,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:46,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:46,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:46,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:46,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:28:46,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:46,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:46,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:46,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:46,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:46,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:46,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:46,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:46,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:46,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:46,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:46,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:46,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:46,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:46,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:46,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:28:46,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:46,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:46,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:46,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:46,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:46,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:46,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:46,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:46,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:46,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:46,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:46,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:28:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:46,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:46,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:46,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:46,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:46,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:46,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:46,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:46,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:46,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:28:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:46,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:46,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:46,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:46,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:46,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:46,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:46,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:46,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:28:46,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:28:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:46,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:46,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:46,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:46,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:46,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:28:46,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:46,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:46,948 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 22:28:46,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259401742] [2020-09-24 22:28:46,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:46,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:28:46,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165607407] [2020-09-24 22:28:46,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:28:46,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:46,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:28:46,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:28:47,001 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-24 22:28:48,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:48,588 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions. [2020-09-24 22:28:48,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:28:48,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:28:48,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:48,626 INFO L225 Difference]: With dead ends: 486 [2020-09-24 22:28:48,626 INFO L226 Difference]: Without dead ends: 301 [2020-09-24 22:28:48,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:28:48,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-24 22:28:48,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-24 22:28:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-24 22:28:48,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-09-24 22:28:48,780 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153 [2020-09-24 22:28:48,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:48,781 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-09-24 22:28:48,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:28:48,781 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-09-24 22:28:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:28:48,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:48,787 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 22:28:48,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:28:48,788 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:48,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:48,789 INFO L82 PathProgramCache]: Analyzing trace with hash -197104449, now seen corresponding path program 1 times [2020-09-24 22:28:48,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:48,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875775733] [2020-09-24 22:28:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:48,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:48,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:53,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:53,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:28:53,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-24 22:28:53,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:53,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:53,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:28:53,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:28:53,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:28:54,190 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:54,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:54,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:54,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:54,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 22:28:54,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:54,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:54,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:54,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:54,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:54,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:54,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:54,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:54,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:54,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:54,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:54,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:54,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:54,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:54,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:54,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:54,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:54,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:54,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:54,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:54,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:28:54,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:54,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:54,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:54,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:54,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:54,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:54,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:54,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:54,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:54,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:28:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:54,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:54,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:54,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:54,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:54,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:28:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:54,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:54,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:28:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:54,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:54,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:54,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:54,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:54,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:54,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:54,497 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 22:28:54,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875775733] [2020-09-24 22:28:54,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:54,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:28:54,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964599554] [2020-09-24 22:28:54,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:28:54,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:54,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:28:54,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:28:54,510 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 4 states. [2020-09-24 22:28:55,145 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:28:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:56,231 INFO L93 Difference]: Finished difference Result 399 states and 451 transitions. [2020-09-24 22:28:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:28:56,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:28:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:56,235 INFO L225 Difference]: With dead ends: 399 [2020-09-24 22:28:56,236 INFO L226 Difference]: Without dead ends: 284 [2020-09-24 22:28:56,237 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 22:28:56,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-24 22:28:56,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-24 22:28:56,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 22:28:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-24 22:28:56,297 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 154 [2020-09-24 22:28:56,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:56,298 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-24 22:28:56,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:28:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-24 22:28:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 22:28:56,302 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:56,302 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 22:28:56,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:28:56,303 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:56,303 INFO L82 PathProgramCache]: Analyzing trace with hash 2051029771, now seen corresponding path program 1 times [2020-09-24 22:28:56,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:56,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187620256] [2020-09-24 22:28:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:56,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:56,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 22:28:59,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:28:59,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3150 [2020-09-24 22:28:59,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:59,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 22:28:59,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:28:59,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,812 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:59,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:59,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 22:28:59,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:59,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:59,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:59,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:28:59,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:59,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:59,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:59,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:59,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:59,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:59,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:28:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:59,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:59,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:59,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:59,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:59,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:00,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:29:00,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:00,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:29:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:00,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:00,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:00,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:00,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:00,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:00,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:00,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:00,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:00,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:00,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:00,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:29:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:00,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:00,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:00,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:00,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:00,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:00,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:00,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:00,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:29:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:00,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:00,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:00,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:00,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:00,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:00,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:00,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187620256] [2020-09-24 22:29:00,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:00,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:29:00,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364126182] [2020-09-24 22:29:00,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:29:00,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:00,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:29:00,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:00,072 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 5 states. [2020-09-24 22:29:00,646 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:01,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:01,678 INFO L93 Difference]: Finished difference Result 445 states and 513 transitions. [2020-09-24 22:29:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:29:01,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 22:29:01,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:01,685 INFO L225 Difference]: With dead ends: 445 [2020-09-24 22:29:01,685 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 22:29:01,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:29:01,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 22:29:01,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-24 22:29:01,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 22:29:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2020-09-24 22:29:01,742 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 167 [2020-09-24 22:29:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:01,744 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2020-09-24 22:29:01,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:29:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2020-09-24 22:29:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 22:29:01,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:01,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:01,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:29:01,749 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:01,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:01,749 INFO L82 PathProgramCache]: Analyzing trace with hash -292228132, now seen corresponding path program 1 times [2020-09-24 22:29:01,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:01,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047204683] [2020-09-24 22:29:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:01,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:03,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:03,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-24 22:29:03,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:03,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1765 [2020-09-24 22:29:03,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:03,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:29:03,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 22:29:03,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 22:29:03,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,060 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:04,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:04,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-24 22:29:04,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 22:29:04,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:04,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:04,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:04,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:04,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:04,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:04,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:04,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:04,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:04,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:04,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:04,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:04,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:04,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:29:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:29:04,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:29:04,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:29:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:29:04,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:29:04,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 22:29:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:29:04,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:04,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:04,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:04,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:04,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:04,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:04,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:04,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:29:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:04,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:04,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 22:29:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:04,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:04,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:04,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 22:29:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:04,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:04,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:04,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:04,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:04,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:04,647 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 22:29:04,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047204683] [2020-09-24 22:29:04,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:04,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 22:29:04,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540599252] [2020-09-24 22:29:04,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:29:04,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:04,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:29:04,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:29:04,653 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 11 states. [2020-09-24 22:29:05,166 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:07,692 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:08,152 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:08,460 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:08,786 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:29:09,057 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:09,599 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:09,915 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:10,279 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:11,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:11,192 INFO L93 Difference]: Finished difference Result 697 states and 868 transitions. [2020-09-24 22:29:11,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 22:29:11,192 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-09-24 22:29:11,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:11,198 INFO L225 Difference]: With dead ends: 697 [2020-09-24 22:29:11,198 INFO L226 Difference]: Without dead ends: 558 [2020-09-24 22:29:11,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-24 22:29:11,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-24 22:29:11,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 385. [2020-09-24 22:29:11,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-24 22:29:11,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 428 transitions. [2020-09-24 22:29:11,275 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 428 transitions. Word has length 180 [2020-09-24 22:29:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:11,276 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 428 transitions. [2020-09-24 22:29:11,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:29:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 428 transitions. [2020-09-24 22:29:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 22:29:11,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:11,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:11,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:29:11,280 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:11,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1645650045, now seen corresponding path program 1 times [2020-09-24 22:29:11,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:11,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233709974] [2020-09-24 22:29:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:29:11,347 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:29:11,347 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:29:11,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:29:11,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:29:11 BoogieIcfgContainer [2020-09-24 22:29:11,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:29:11,383 INFO L168 Benchmark]: Toolchain (without parser) took 33259.66 ms. Allocated memory was 140.5 MB in the beginning and 600.8 MB in the end (delta: 460.3 MB). Free memory was 102.8 MB in the beginning and 377.5 MB in the end (delta: -274.7 MB). Peak memory consumption was 185.6 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:11,384 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: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 22:29:11,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.10 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 173.8 MB in the end (delta: -71.7 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:11,386 INFO L168 Benchmark]: Boogie Preprocessor took 99.33 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 169.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:11,386 INFO L168 Benchmark]: RCFGBuilder took 1333.77 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 169.7 MB in the beginning and 177.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:11,387 INFO L168 Benchmark]: TraceAbstraction took 31093.12 ms. Allocated memory was 236.5 MB in the beginning and 600.8 MB in the end (delta: 364.4 MB). Free memory was 177.0 MB in the beginning and 377.5 MB in the end (delta: -200.4 MB). Peak memory consumption was 163.9 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:11,391 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: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 725.10 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 173.8 MB in the end (delta: -71.7 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.33 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 169.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1333.77 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 169.7 MB in the beginning and 177.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31093.12 ms. Allocated memory was 236.5 MB in the beginning and 600.8 MB in the end (delta: 364.4 MB). Free memory was 177.0 MB in the beginning and 377.5 MB in the end (delta: -200.4 MB). Peak memory consumption was 163.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L145] int cleanupTimeShifts = 4; [L286] int pumpRunning = 0; [L287] int systemActive = 1; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L224] int retValue_acc ; [L225] int tmp ; [L229] FCALL select_helpers() [L230] FCALL select_features() [L231] CALL, EXPR valid_product() [L273] int retValue_acc ; [L276] retValue_acc = 1 [L277] return (retValue_acc); [L231] RET, EXPR valid_product() [L231] tmp = valid_product() [L233] COND TRUE \read(tmp) [L235] FCALL setup() [L236] CALL runTest() [L215] CALL test() [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 [L483] COND TRUE 1 [L485] COND TRUE splverifierCounter < 4 [L491] tmp = __VERIFIER_nondet_int() [L493] COND TRUE \read(tmp) [L495] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L495] RET waterRise() [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND TRUE \read(tmp___2) [L515] CALL startSystem() [L468] systemActive = 1 [L515] RET startSystem() [L528] CALL timeShift() [L294] COND FALSE !(\read(pumpRunning)) [L301] COND TRUE \read(systemActive) [L303] CALL processEnvironment() [L349] int tmp ; [L352] COND FALSE !(\read(pumpRunning)) [L367] CALL processEnvironment__wrappee__lowWaterSensor() [L323] int tmp ; [L326] COND FALSE !(\read(pumpRunning)) [L341] FCALL processEnvironment__wrappee__base() [L367] RET processEnvironment__wrappee__lowWaterSensor() [L303] RET processEnvironment() [L309] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L401] int retValue_acc ; [L404] retValue_acc = pumpRunning [L405] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 625 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 1447 SDslu, 937 SDs, 0 SdLazy, 2314 SolverSat, 496 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 307 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.1s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 650 ConstructedInterpolants, 0 QuantifiedInterpolants, 260063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...