/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:36:28,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:36:28,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:36:28,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:36:28,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:36:28,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:36:28,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:36:28,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:36:28,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:36:28,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:36:28,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:36:28,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:36:28,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:36:28,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:36:28,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:36:28,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:36:28,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:36:28,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:36:28,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:36:28,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:36:28,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:36:28,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:36:28,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:36:28,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:36:28,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:36:28,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:36:28,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:36:28,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:36:28,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:36:28,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:36:28,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:36:28,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:36:28,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:36:28,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:36:28,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:36:28,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:36:28,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:36:28,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:36:28,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:36:28,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:36:28,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:36:28,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:36:28,681 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:36:28,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:36:28,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:36:28,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:36:28,683 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:36:28,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:36:28,684 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:36:28,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:36:28,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:36:28,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:36:28,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:36:28,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:36:28,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:36:28,685 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:36:28,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:36:28,686 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:36:28,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:36:28,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:36:28,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:36:28,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:36:28,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:36:28,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:36:28,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:36:28,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:36:28,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:36:28,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:36:28,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:36:28,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:36:28,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:36:28,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:36:28,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:36:28,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:36:28,982 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:36:28,983 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:36:28,984 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-11-07 04:36:29,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dadb7e371/a1189d30983944198fe7bc5b65946863/FLAG44b6a9747 [2019-11-07 04:36:29,566 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:36:29,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-11-07 04:36:29,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dadb7e371/a1189d30983944198fe7bc5b65946863/FLAG44b6a9747 [2019-11-07 04:36:29,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dadb7e371/a1189d30983944198fe7bc5b65946863 [2019-11-07 04:36:29,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:36:29,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:36:29,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:36:29,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:36:29,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:36:29,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:36:29" (1/1) ... [2019-11-07 04:36:29,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f3de09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:29, skipping insertion in model container [2019-11-07 04:36:29,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:36:29" (1/1) ... [2019-11-07 04:36:29,998 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:36:30,073 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:36:30,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:36:30,561 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:36:30,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:36:30,723 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:36:30,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30 WrapperNode [2019-11-07 04:36:30,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:36:30,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:36:30,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:36:30,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:36:30,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:36:30,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:36:30,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:36:30,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:36:30,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-11-07 04:36:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:36:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:36:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:36:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:36:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:36:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:36:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:36:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:36:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:36:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:36:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:36:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:36:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:36:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:36:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:36:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:36:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:36:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:36:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:36:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:36:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:36:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:36:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:36:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:36:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:36:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:36:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:36:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:36:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:36:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:36:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:36:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:36:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:36:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:36:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:36:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:36:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:36:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:36:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:36:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:36:30,907 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:36:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:36:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:36:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:36:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:36:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:36:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:36:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:36:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:36:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:36:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:36:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:36:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:36:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:36:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:36:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:36:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:36:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:36:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:36:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:36:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:36:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:36:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:36:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:36:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:36:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:36:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:36:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:36:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:36:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:36:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:36:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:36:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:36:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:36:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:36:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:36:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:36:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:36:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:36:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:36:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:36:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:36:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:36:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:36:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:36:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:36:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:36:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:36:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:36:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:36:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:36:32,673 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:36:32,674 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:36:32,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:36:32 BoogieIcfgContainer [2019-11-07 04:36:32,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:36:32,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:36:32,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:36:32,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:36:32,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:36:29" (1/3) ... [2019-11-07 04:36:32,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2f0bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:36:32, skipping insertion in model container [2019-11-07 04:36:32,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (2/3) ... [2019-11-07 04:36:32,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2f0bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:36:32, skipping insertion in model container [2019-11-07 04:36:32,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:36:32" (3/3) ... [2019-11-07 04:36:32,683 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2019-11-07 04:36:32,694 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:36:32,704 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:36:32,716 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:36:32,755 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:36:32,756 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:36:32,756 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:36:32,756 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:36:32,756 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:36:32,756 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:36:32,757 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:36:32,757 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:36:32,784 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-07 04:36:32,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 04:36:32,797 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:32,798 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:32,801 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:32,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:32,808 INFO L82 PathProgramCache]: Analyzing trace with hash 199906964, now seen corresponding path program 1 times [2019-11-07 04:36:32,818 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:32,819 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3689886] [2019-11-07 04:36:32,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:36:33,301 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3689886] [2019-11-07 04:36:33,302 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:33,303 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:36:33,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307999044] [2019-11-07 04:36:33,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:36:33,310 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:33,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:36:33,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:36:33,329 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2019-11-07 04:36:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:33,398 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-11-07 04:36:33,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:36:33,400 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-11-07 04:36:33,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:33,413 INFO L225 Difference]: With dead ends: 224 [2019-11-07 04:36:33,413 INFO L226 Difference]: Without dead ends: 114 [2019-11-07 04:36:33,418 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:36:33,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-07 04:36:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-11-07 04:36:33,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-07 04:36:33,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-11-07 04:36:33,471 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 52 [2019-11-07 04:36:33,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:33,472 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-11-07 04:36:33,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:36:33,472 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-11-07 04:36:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-07 04:36:33,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:33,477 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:33,477 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:33,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:33,478 INFO L82 PathProgramCache]: Analyzing trace with hash 65146363, now seen corresponding path program 1 times [2019-11-07 04:36:33,478 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:33,478 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991220409] [2019-11-07 04:36:33,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:36:33,631 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991220409] [2019-11-07 04:36:33,631 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:33,632 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:36:33,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854344970] [2019-11-07 04:36:33,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:36:33,635 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:33,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:36:33,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:36:33,636 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 3 states. [2019-11-07 04:36:33,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:33,668 INFO L93 Difference]: Finished difference Result 182 states and 208 transitions. [2019-11-07 04:36:33,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:36:33,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-11-07 04:36:33,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:33,672 INFO L225 Difference]: With dead ends: 182 [2019-11-07 04:36:33,672 INFO L226 Difference]: Without dead ends: 106 [2019-11-07 04:36:33,674 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:36:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-07 04:36:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-11-07 04:36:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-07 04:36:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2019-11-07 04:36:33,689 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 53 [2019-11-07 04:36:33,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:33,690 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2019-11-07 04:36:33,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:36:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2019-11-07 04:36:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-07 04:36:33,693 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:33,693 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:33,693 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:33,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:33,694 INFO L82 PathProgramCache]: Analyzing trace with hash 720940157, now seen corresponding path program 1 times [2019-11-07 04:36:33,694 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:33,694 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233213566] [2019-11-07 04:36:33,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:36:33,907 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233213566] [2019-11-07 04:36:33,908 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:33,909 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:36:33,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128004521] [2019-11-07 04:36:33,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:36:33,911 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:33,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:36:33,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:36:33,912 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand 7 states. [2019-11-07 04:36:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:34,211 INFO L93 Difference]: Finished difference Result 187 states and 214 transitions. [2019-11-07 04:36:34,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:36:34,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-11-07 04:36:34,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:34,213 INFO L225 Difference]: With dead ends: 187 [2019-11-07 04:36:34,214 INFO L226 Difference]: Without dead ends: 106 [2019-11-07 04:36:34,215 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:36:34,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-07 04:36:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-11-07 04:36:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-07 04:36:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2019-11-07 04:36:34,228 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 55 [2019-11-07 04:36:34,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:34,231 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2019-11-07 04:36:34,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:36:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2019-11-07 04:36:34,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-07 04:36:34,236 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:34,237 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:34,237 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:34,237 INFO L82 PathProgramCache]: Analyzing trace with hash -472915247, now seen corresponding path program 1 times [2019-11-07 04:36:34,237 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:34,239 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529367126] [2019-11-07 04:36:34,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:36:34,395 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529367126] [2019-11-07 04:36:34,395 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:34,395 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:36:34,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887565764] [2019-11-07 04:36:34,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:36:34,396 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:34,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:36:34,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:36:34,397 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2019-11-07 04:36:34,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:34,888 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2019-11-07 04:36:34,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:36:34,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-11-07 04:36:34,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:34,895 INFO L225 Difference]: With dead ends: 275 [2019-11-07 04:36:34,895 INFO L226 Difference]: Without dead ends: 194 [2019-11-07 04:36:34,897 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:36:34,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-11-07 04:36:34,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 179. [2019-11-07 04:36:34,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-11-07 04:36:34,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 199 transitions. [2019-11-07 04:36:34,936 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 199 transitions. Word has length 68 [2019-11-07 04:36:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:34,937 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 199 transitions. [2019-11-07 04:36:34,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:36:34,937 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 199 transitions. [2019-11-07 04:36:34,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 04:36:34,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:34,970 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:34,970 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:34,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:34,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1083393428, now seen corresponding path program 1 times [2019-11-07 04:36:34,971 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:34,971 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905687073] [2019-11-07 04:36:34,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:36:35,199 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905687073] [2019-11-07 04:36:35,200 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:35,200 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:36:35,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723109581] [2019-11-07 04:36:35,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:36:35,201 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:35,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:36:35,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:36:35,202 INFO L87 Difference]: Start difference. First operand 179 states and 199 transitions. Second operand 12 states. [2019-11-07 04:36:36,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:36,311 INFO L93 Difference]: Finished difference Result 475 states and 543 transitions. [2019-11-07 04:36:36,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:36:36,312 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2019-11-07 04:36:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:36,317 INFO L225 Difference]: With dead ends: 475 [2019-11-07 04:36:36,318 INFO L226 Difference]: Without dead ends: 321 [2019-11-07 04:36:36,319 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:36:36,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-11-07 04:36:36,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2019-11-07 04:36:36,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-11-07 04:36:36,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 352 transitions. [2019-11-07 04:36:36,354 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 352 transitions. Word has length 77 [2019-11-07 04:36:36,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:36,355 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 352 transitions. [2019-11-07 04:36:36,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:36:36,355 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 352 transitions. [2019-11-07 04:36:36,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 04:36:36,357 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:36,357 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:36,357 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:36,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:36,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1154175996, now seen corresponding path program 1 times [2019-11-07 04:36:36,358 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:36,358 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307121470] [2019-11-07 04:36:36,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:36:36,498 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307121470] [2019-11-07 04:36:36,498 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:36,499 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:36:36,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804887771] [2019-11-07 04:36:36,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:36:36,500 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:36,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:36:36,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:36:36,500 INFO L87 Difference]: Start difference. First operand 309 states and 352 transitions. Second operand 7 states. [2019-11-07 04:36:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:37,063 INFO L93 Difference]: Finished difference Result 617 states and 725 transitions. [2019-11-07 04:36:37,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:36:37,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-11-07 04:36:37,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:37,068 INFO L225 Difference]: With dead ends: 617 [2019-11-07 04:36:37,069 INFO L226 Difference]: Without dead ends: 333 [2019-11-07 04:36:37,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-07 04:36:37,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-11-07 04:36:37,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 306. [2019-11-07 04:36:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-11-07 04:36:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 343 transitions. [2019-11-07 04:36:37,100 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 343 transitions. Word has length 77 [2019-11-07 04:36:37,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:37,100 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 343 transitions. [2019-11-07 04:36:37,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:36:37,101 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 343 transitions. [2019-11-07 04:36:37,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-07 04:36:37,102 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:37,102 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:37,102 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:37,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:37,103 INFO L82 PathProgramCache]: Analyzing trace with hash 949759218, now seen corresponding path program 1 times [2019-11-07 04:36:37,103 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:37,103 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744505587] [2019-11-07 04:36:37,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:36:37,250 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744505587] [2019-11-07 04:36:37,251 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:37,251 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:36:37,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870133066] [2019-11-07 04:36:37,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:36:37,252 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:37,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:36:37,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:36:37,253 INFO L87 Difference]: Start difference. First operand 306 states and 343 transitions. Second operand 9 states. [2019-11-07 04:36:38,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:38,168 INFO L93 Difference]: Finished difference Result 931 states and 1073 transitions. [2019-11-07 04:36:38,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:36:38,169 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2019-11-07 04:36:38,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:38,174 INFO L225 Difference]: With dead ends: 931 [2019-11-07 04:36:38,175 INFO L226 Difference]: Without dead ends: 707 [2019-11-07 04:36:38,176 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:36:38,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-11-07 04:36:38,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 610. [2019-11-07 04:36:38,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-11-07 04:36:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 691 transitions. [2019-11-07 04:36:38,226 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 691 transitions. Word has length 80 [2019-11-07 04:36:38,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:38,226 INFO L462 AbstractCegarLoop]: Abstraction has 610 states and 691 transitions. [2019-11-07 04:36:38,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:36:38,227 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 691 transitions. [2019-11-07 04:36:38,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-07 04:36:38,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:38,229 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:38,230 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:38,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:38,230 INFO L82 PathProgramCache]: Analyzing trace with hash -991184073, now seen corresponding path program 1 times [2019-11-07 04:36:38,230 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:38,231 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920418412] [2019-11-07 04:36:38,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:38,386 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-07 04:36:38,386 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920418412] [2019-11-07 04:36:38,386 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951614021] [2019-11-07 04:36:38,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:36:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:38,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 04:36:38,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:36:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:36:38,815 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:36:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-07 04:36:39,244 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1308888617] [2019-11-07 04:36:39,272 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-11-07 04:36:39,272 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:36:39,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:36:39,286 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:36:39,286 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:36:49,824 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-11-07 04:36:51,533 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:36:51,661 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:51,830 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:51,947 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:52,286 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:36:52,395 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:52,543 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:52,801 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:36:52,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-11-07 04:36:52,859 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-11-07 04:36:53,125 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,283 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,447 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:53,592 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,696 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,848 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:54,073 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:54,202 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:54,320 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:54,434 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:54,663 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:54,882 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:55,053 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:55,194 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:55,342 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:55,456 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:55,573 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:55,717 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:55,827 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:56,004 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:56,159 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:56,271 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:56,417 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:56,585 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:36:56,721 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:36:56,852 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:56,961 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:36:57,070 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:36:57,189 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:57,383 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-11-07 04:36:57,516 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-11-07 04:36:57,643 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-11-07 04:36:57,777 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-11-07 04:36:57,891 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-11-07 04:36:58,013 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-11-07 04:36:58,032 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-11-07 04:36:58,204 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:58,485 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:58,653 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:58,868 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:58,877 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-11-07 04:36:59,121 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-11-07 04:36:59,525 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:00,221 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 575 [2019-11-07 04:37:00,745 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-11-07 04:37:01,345 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 188 [2019-11-07 04:37:01,590 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 612 [2019-11-07 04:37:01,990 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-07 04:37:02,701 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 135 for LOIs [2019-11-07 04:37:02,704 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 140 for LOIs [2019-11-07 04:37:04,216 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 147 for LOIs [2019-11-07 04:37:04,226 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 145 for LOIs [2019-11-07 04:37:04,762 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 161 [2019-11-07 04:37:04,920 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 04:37:05,050 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 161 [2019-11-07 04:37:05,720 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 163 for LOIs [2019-11-07 04:37:06,635 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 156 for LOIs [2019-11-07 04:37:06,845 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 156 for LOIs [2019-11-07 04:37:06,848 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 141 for LOIs [2019-11-07 04:37:06,851 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 157 for LOIs [2019-11-07 04:37:06,856 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 145 for LOIs [2019-11-07 04:37:07,125 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 145 for LOIs [2019-11-07 04:37:07,128 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 544 for LOIs [2019-11-07 04:37:07,138 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 544 for LOIs [2019-11-07 04:37:07,148 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification5_spec__3 with input of size 149 for LOIs