/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:51:26,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:51:26,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:51:26,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:51:26,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:51:26,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:51:26,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:51:26,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:51:26,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:51:26,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:51:26,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:51:26,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:51:26,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:51:26,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:51:26,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:51:26,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:51:26,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:51:26,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:51:26,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:51:26,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:51:26,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:51:26,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:51:26,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:51:26,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:51:26,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:51:26,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:51:26,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:51:26,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:51:26,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:51:26,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:51:26,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:51:26,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:51:26,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:51:26,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:51:26,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:51:26,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:51:26,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:51:26,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:51:26,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:51:26,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:51:26,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:51:26,585 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 16:51:26,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:51:26,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:51:26,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:51:26,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:51:26,638 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:51:26,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:51:26,639 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:51:26,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:51:26,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:51:26,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:51:26,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:51:26,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:51:26,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:51:26,642 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:51:26,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:51:26,642 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:51:26,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:51:26,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:51:26,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:51:26,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:51:26,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:51:26,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:51:26,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:51:26,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:51:26,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:51:26,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:51:26,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:51:26,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:51:26,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:51:26,645 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;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;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;log-additional-information=true; [2020-09-24 16:51:27,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:51:27,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:51:27,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:51:27,128 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:51:27,129 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:51:27,131 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-24 16:51:27,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed287f718/10263054e26242f8915590005082cd15/FLAG90443213f [2020-09-24 16:51:27,823 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:51:27,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-24 16:51:27,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed287f718/10263054e26242f8915590005082cd15/FLAG90443213f [2020-09-24 16:51:28,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed287f718/10263054e26242f8915590005082cd15 [2020-09-24 16:51:28,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:51:28,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:51:28,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:51:28,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:51:28,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:51:28,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d2c9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28, skipping insertion in model container [2020-09-24 16:51:28,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:51:28,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:51:28,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:51:28,741 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:51:28,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:51:28,872 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:51:28,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28 WrapperNode [2020-09-24 16:51:28,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:51:28,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:51:28,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:51:28,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:51:28,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (1/1) ... [2020-09-24 16:51:28,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:51:28,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:51:28,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:51:28,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:51:28,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (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 16:51:29,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:51:29,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:51:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:51:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:51:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:51:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:51:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:51:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:51:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:51:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:51:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:51:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:51:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:51:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:51:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:51:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:51:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:51:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:51:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:51:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:51:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:51:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:51:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:51:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:51:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:51:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:51:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:51:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:51:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:51:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:51:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:51:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:51:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:51:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:51:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:51:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:51:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:51:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:51:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:51:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:51:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:51:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:51:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:51:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:51:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:51:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:51:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:51:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:51:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:51:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:51:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:51:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:51:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:51:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:51:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:51:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:51:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:51:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:51:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:51:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:51:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:51:30,348 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:51:30,348 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:51:30,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:51:30 BoogieIcfgContainer [2020-09-24 16:51:30,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:51:30,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:51:30,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:51:30,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:51:30,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:51:28" (1/3) ... [2020-09-24 16:51:30,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f033e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:51:30, skipping insertion in model container [2020-09-24 16:51:30,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:28" (2/3) ... [2020-09-24 16:51:30,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f033e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:51:30, skipping insertion in model container [2020-09-24 16:51:30,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:51:30" (3/3) ... [2020-09-24 16:51:30,368 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-09-24 16:51:30,381 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:51:30,394 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:51:30,416 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:51:30,450 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:51:30,450 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:51:30,451 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:51:30,451 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:51:30,451 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:51:30,451 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:51:30,451 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:51:30,451 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:51:30,486 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-24 16:51:30,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 16:51:30,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:30,508 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 16:51:30,509 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:30,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:30,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1883472631, now seen corresponding path program 1 times [2020-09-24 16:51:30,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:30,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578907235] [2020-09-24 16:51:30,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:31,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:31,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:32,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:36,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:36,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:51:36,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:51:36,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5563 [2020-09-24 16:51:36,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:36,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 16:51:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:36,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:51:36,901 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:51:36,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:51:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:36,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:37,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:37,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:51:37,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-24 16:51:37,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:37,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:37,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:51:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:37,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:37,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:37,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:37,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:37,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:37,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:51:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:37,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:37,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:37,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:51:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:37,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:37,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:37,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:37,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:37,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:51:37,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:37,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:37,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:37,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:37,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:37,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:51:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:37,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:37,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:37,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:37,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:37,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:37,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:37,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:37,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:51:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:37,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:37,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:37,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:37,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:37,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:37,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:37,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:51:37,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:51:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:37,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:37,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:37,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:37,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:37,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:37,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:51:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:37,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:37,209 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:37,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:37,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:37,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:37,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:37,242 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 16:51:37,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578907235] [2020-09-24 16:51:37,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:51:37,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:51:37,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890261766] [2020-09-24 16:51:37,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:51:37,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:51:37,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:51:37,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:51:37,278 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 3 states. [2020-09-24 16:51:38,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:51:38,786 INFO L93 Difference]: Finished difference Result 503 states and 601 transitions. [2020-09-24 16:51:38,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:51:38,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 16:51:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:51:38,810 INFO L225 Difference]: With dead ends: 503 [2020-09-24 16:51:38,811 INFO L226 Difference]: Without dead ends: 310 [2020-09-24 16:51:38,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:51:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-24 16:51:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-09-24 16:51:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-24 16:51:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-09-24 16:51:38,936 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 153 [2020-09-24 16:51:38,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:51:38,937 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-09-24 16:51:38,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:51:38,938 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-09-24 16:51:38,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 16:51:38,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:38,943 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 16:51:38,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:51:38,944 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:38,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:38,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1086228284, now seen corresponding path program 1 times [2020-09-24 16:51:38,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:38,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744929691] [2020-09-24 16:51:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:39,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:39,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:40,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 16:51:46,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:51:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7026 [2020-09-24 16:51:46,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:51:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:51:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:46,490 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:51:46,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:51:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:46,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:51:46,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 16:51:46,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:46,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:46,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:46,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:46,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:51:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:46,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:46,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:46,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:46,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:46,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:46,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:46,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:51:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:46,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:46,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:46,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:46,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:46,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:46,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:51:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:46,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:46,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:46,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:51:46,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:46,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:46,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:51:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:46,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:46,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:46,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:46,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:46,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 16:51:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:46,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:46,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:46,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:46,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:46,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:46,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:46,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:46,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 16:51:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:46,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:46,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:46,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:46,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:46,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:46,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:46,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:46,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 16:51:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:46,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:46,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:46,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:46,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:46,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:46,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:46,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:46,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:46,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:46,753 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 16:51:46,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744929691] [2020-09-24 16:51:46,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:51:46,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:51:46,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067882253] [2020-09-24 16:51:46,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:51:46,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:51:46,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:51:46,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:51:46,758 INFO L87 Difference]: Start difference. First operand 267 states and 292 transitions. Second operand 4 states. [2020-09-24 16:51:47,410 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:51:48,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:51:48,454 INFO L93 Difference]: Finished difference Result 414 states and 468 transitions. [2020-09-24 16:51:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:51:48,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 16:51:48,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:51:48,464 INFO L225 Difference]: With dead ends: 414 [2020-09-24 16:51:48,467 INFO L226 Difference]: Without dead ends: 293 [2020-09-24 16:51:48,468 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 16:51:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-24 16:51:48,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-09-24 16:51:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-24 16:51:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 279 transitions. [2020-09-24 16:51:48,518 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 279 transitions. Word has length 154 [2020-09-24 16:51:48,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:51:48,519 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 279 transitions. [2020-09-24 16:51:48,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:51:48,519 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 279 transitions. [2020-09-24 16:51:48,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 16:51:48,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:48,523 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] [2020-09-24 16:51:48,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:51:48,523 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:48,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:48,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1753608415, now seen corresponding path program 1 times [2020-09-24 16:51:48,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:48,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753192724] [2020-09-24 16:51:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:48,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:49,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:52,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:52,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 16:51:52,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:51:52,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4038 [2020-09-24 16:51:52,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:52,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:51:52,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 16:51:52,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 16:51:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:52,915 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:51:52,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:51:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:52,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:53,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:53,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:51:53,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:53,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 16:51:53,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 16:51:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:53,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:51:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:53,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:53,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:53,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:53,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:53,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:53,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:51:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:53,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:53,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:53,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:53,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:53,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:53,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:53,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:53,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:53,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:51:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:53,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:53,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:53,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:51:53,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:51:53,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:53,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:51:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:53,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:53,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:53,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:53,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:53,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:53,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:53,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:53,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:53,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:53,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:51:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:53,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:53,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:53,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:53,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:53,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:53,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:53,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:53,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:53,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:53,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:53,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:51:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:53,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:53,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:53,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:53,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:53,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:53,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 16:51:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:53,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:53,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:53,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:53,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:53,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:51:53,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:53,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:53,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:53,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:53,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:53,272 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 16:51:53,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753192724] [2020-09-24 16:51:53,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:51:53,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:51:53,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187117874] [2020-09-24 16:51:53,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:51:53,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:51:53,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:51:53,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:51:53,277 INFO L87 Difference]: Start difference. First operand 257 states and 279 transitions. Second operand 4 states. [2020-09-24 16:51:53,934 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:51:56,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:51:56,020 INFO L93 Difference]: Finished difference Result 599 states and 688 transitions. [2020-09-24 16:51:56,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:51:56,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 16:51:56,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:51:56,026 INFO L225 Difference]: With dead ends: 599 [2020-09-24 16:51:56,027 INFO L226 Difference]: Without dead ends: 452 [2020-09-24 16:51:56,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 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 16:51:56,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-09-24 16:51:56,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 398. [2020-09-24 16:51:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-24 16:51:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 443 transitions. [2020-09-24 16:51:56,103 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 443 transitions. Word has length 163 [2020-09-24 16:51:56,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:51:56,104 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 443 transitions. [2020-09-24 16:51:56,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:51:56,104 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 443 transitions. [2020-09-24 16:51:56,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 16:51:56,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:51:56,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:51:56,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:51:56,109 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:51:56,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:51:56,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1156257497, now seen corresponding path program 1 times [2020-09-24 16:51:56,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:51:56,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949172723] [2020-09-24 16:51:56,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:51:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:56,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:57,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:57,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 16:51:57,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:57,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1735 [2020-09-24 16:51:57,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:57,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:51:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:51:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 16:51:57,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:51:58,231 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:51:58,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:51:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:51:58,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 16:51:58,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:51:58,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:51:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:58,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:58,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:58,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:58,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:58,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:51:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:58,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:58,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:58,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:58,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:58,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:51:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:58,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:51:58,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:51:58,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:51:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:51:58,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:51:58,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:58,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:58,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:51:58,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 16:51:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:51:58,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:58,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:58,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:58,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:51:58,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 16:51:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:58,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:58,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:51:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:51:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 16:51:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:58,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:51:58,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:51:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:51:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:51:58,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 16:51:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:51:58,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:51:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:51:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:51:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:51:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:51:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:51:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:51:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:51:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:51:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:51:58,784 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 16:51:58,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949172723] [2020-09-24 16:51:58,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:51:58,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:51:58,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965777544] [2020-09-24 16:51:58,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:51:58,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:51:58,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:51:58,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:51:58,790 INFO L87 Difference]: Start difference. First operand 398 states and 443 transitions. Second operand 10 states. [2020-09-24 16:51:59,332 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:52:01,598 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:52:02,259 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 16:52:02,575 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:52:02,929 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:52:03,259 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:52:03,594 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:52:03,901 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:52:04,449 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:52:05,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:52:05,502 INFO L93 Difference]: Finished difference Result 1069 states and 1326 transitions. [2020-09-24 16:52:05,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:52:05,505 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-24 16:52:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:52:05,511 INFO L225 Difference]: With dead ends: 1069 [2020-09-24 16:52:05,511 INFO L226 Difference]: Without dead ends: 781 [2020-09-24 16:52:05,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 16:52:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-09-24 16:52:05,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 657. [2020-09-24 16:52:05,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-24 16:52:05,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 756 transitions. [2020-09-24 16:52:05,626 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 756 transitions. Word has length 172 [2020-09-24 16:52:05,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:52:05,627 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 756 transitions. [2020-09-24 16:52:05,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:52:05,627 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 756 transitions. [2020-09-24 16:52:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 16:52:05,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:52:05,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:52:05,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:52:05,632 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:52:05,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:52:05,633 INFO L82 PathProgramCache]: Analyzing trace with hash 82436204, now seen corresponding path program 1 times [2020-09-24 16:52:05,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:52:05,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775515574] [2020-09-24 16:52:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:52:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:52:05,698 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:52:05,699 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:52:05,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:52:05,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:52:05 BoogieIcfgContainer [2020-09-24 16:52:05,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:52:05,734 INFO L168 Benchmark]: Toolchain (without parser) took 37609.42 ms. Allocated memory was 140.5 MB in the beginning and 674.8 MB in the end (delta: 534.2 MB). Free memory was 101.1 MB in the beginning and 299.1 MB in the end (delta: -198.1 MB). Peak memory consumption was 336.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:52:05,735 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 16:52:05,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.17 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 170.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:52:05,737 INFO L168 Benchmark]: Boogie Preprocessor took 103.16 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:52:05,738 INFO L168 Benchmark]: RCFGBuilder took 1378.30 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 165.8 MB in the beginning and 174.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-09-24 16:52:05,739 INFO L168 Benchmark]: TraceAbstraction took 35374.02 ms. Allocated memory was 237.5 MB in the beginning and 674.8 MB in the end (delta: 437.3 MB). Free memory was 173.0 MB in the beginning and 299.1 MB in the end (delta: -126.2 MB). Peak memory consumption was 311.1 MB. Max. memory is 7.1 GB. [2020-09-24 16:52:05,743 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.17 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 170.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.16 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1378.30 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 165.8 MB in the beginning and 174.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35374.02 ms. Allocated memory was 237.5 MB in the beginning and 674.8 MB in the end (delta: 437.3 MB). Free memory was 173.0 MB in the beginning and 299.1 MB in the end (delta: -126.2 MB). Peak memory consumption was 311.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] RET, EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L889] CALL test() [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 [L390] COND TRUE 1 [L392] COND TRUE splverifierCounter < 4 [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) [L402] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L402] RET waterRise() [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) [L428] CALL stopSystem() [L367] COND FALSE !(\read(pumpRunning)) [L374] systemActive = 0 [L428] RET stopSystem() [L435] CALL timeShift() [L193] COND FALSE !(\read(pumpRunning)) [L200] COND FALSE !(\read(systemActive)) [L208] CALL __utac_acc__Specification3_spec__1() [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L925] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L925] RET, EXPR isMethaneLevelCritical() [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L931] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L931] RET, EXPR getWaterLevel() [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L935] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L935] RET, EXPR isPumpRunning() [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) [L941] CALL __automaton_fail() [L451] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1031 SDtfs, 1300 SDslu, 822 SDs, 0 SdLazy, 2274 SolverSat, 456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred 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, 257 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 21.2s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 266695 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...