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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:21:01,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:21:01,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:21:01,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:21:01,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:21:01,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:21:01,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:21:01,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:21:01,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:21:01,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:21:01,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:21:01,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:21:01,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:21:01,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:21:01,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:21:01,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:21:01,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:21:01,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:21:01,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:21:01,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:21:01,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:21:01,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:21:01,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:21:01,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:21:01,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:21:01,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:21:01,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:21:01,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:21:01,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:21:01,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:21:01,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:21:01,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:21:01,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:21:01,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:21:01,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:21:01,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:21:01,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:21:01,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:21:01,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:21:01,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:21:01,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:21:01,826 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 [2019-10-13 21:21:01,845 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:21:01,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:21:01,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:21:01,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:21:01,848 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:21:01,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:21:01,848 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:21:01,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:21:01,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:21:01,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:21:01,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:21:01,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:21:01,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:21:01,851 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:21:01,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:21:01,851 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:21:01,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:21:01,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:21:01,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:21:01,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:21:01,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:21:01,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:21:01,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:21:01,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:21:01,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:21:01,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:21:01,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:21:01,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:21:01,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:21:02,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:21:02,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:21:02,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:21:02,223 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:21:02,224 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:21:02,224 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2019-10-13 21:21:02,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa8bb09a/f9a3c45f79b5449a94b1ea5a7ffa8f53/FLAGfc3de65c6 [2019-10-13 21:21:02,838 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:21:02,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2019-10-13 21:21:02,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa8bb09a/f9a3c45f79b5449a94b1ea5a7ffa8f53/FLAGfc3de65c6 [2019-10-13 21:21:03,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa8bb09a/f9a3c45f79b5449a94b1ea5a7ffa8f53 [2019-10-13 21:21:03,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:21:03,162 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:21:03,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:21:03,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:21:03,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:21:03,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3fe7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03, skipping insertion in model container [2019-10-13 21:21:03,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,182 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:21:03,229 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:21:03,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:21:03,748 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:21:03,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:21:03,871 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:21:03,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03 WrapperNode [2019-10-13 21:21:03,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:21:03,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:21:03,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:21:03,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:21:03,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (1/1) ... [2019-10-13 21:21:03,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:21:03,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:21:03,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:21:03,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:21:03,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (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 [2019-10-13 21:21:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:21:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:21:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:21:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:21:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:21:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:21:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:21:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:21:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:21:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:21:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:21:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:21:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:21:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:21:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 21:21:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:21:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:21:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:21:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:21:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:21:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 21:21:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 21:21:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:21:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:21:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:21:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:21:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:21:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:21:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:21:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:21:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:21:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:21:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:21:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 21:21:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:21:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:21:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:21:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:21:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:21:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:21:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:21:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:21:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:21:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:21:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:21:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:21:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:21:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:21:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:21:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:21:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:21:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:21:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:21:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:21:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:21:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:21:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 21:21:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:21:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:21:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:21:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:21:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:21:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:21:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 21:21:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:21:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:21:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:21:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:21:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:21:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 21:21:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:21:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:21:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:21:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:21:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:21:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:21:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 21:21:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:21:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:21:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:21:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:21:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:21:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:21:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:21:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:21:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:21:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:21:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:21:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:21:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:21:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:21:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:21:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:21:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:21:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:21:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:21:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:21:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:21:05,104 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:21:05,105 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:21:05,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:21:05 BoogieIcfgContainer [2019-10-13 21:21:05,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:21:05,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:21:05,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:21:05,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:21:05,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:21:03" (1/3) ... [2019-10-13 21:21:05,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac29e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:21:05, skipping insertion in model container [2019-10-13 21:21:05,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:21:03" (2/3) ... [2019-10-13 21:21:05,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac29e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:21:05, skipping insertion in model container [2019-10-13 21:21:05,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:21:05" (3/3) ... [2019-10-13 21:21:05,117 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2019-10-13 21:21:05,127 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:21:05,136 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:21:05,146 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:21:05,180 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:21:05,181 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:21:05,181 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:21:05,181 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:21:05,181 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:21:05,182 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:21:05,182 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:21:05,182 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:21:05,210 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2019-10-13 21:21:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 21:21:05,219 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:05,220 INFO L380 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] [2019-10-13 21:21:05,222 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:05,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:05,228 INFO L82 PathProgramCache]: Analyzing trace with hash -2111020078, now seen corresponding path program 1 times [2019-10-13 21:21:05,237 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:05,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137536983] [2019-10-13 21:21:05,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:05,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:05,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:05,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:05,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137536983] [2019-10-13 21:21:05,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:05,554 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:21:05,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273416776] [2019-10-13 21:21:05,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:21:05,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:05,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:21:05,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:21:05,582 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 2 states. [2019-10-13 21:21:05,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:05,623 INFO L93 Difference]: Finished difference Result 286 states and 353 transitions. [2019-10-13 21:21:05,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:21:05,624 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-13 21:21:05,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:05,637 INFO L225 Difference]: With dead ends: 286 [2019-10-13 21:21:05,637 INFO L226 Difference]: Without dead ends: 145 [2019-10-13 21:21:05,642 INFO L600 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 [2019-10-13 21:21:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-10-13 21:21:05,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-10-13 21:21:05,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-10-13 21:21:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2019-10-13 21:21:05,696 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 51 [2019-10-13 21:21:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:05,696 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2019-10-13 21:21:05,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:21:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2019-10-13 21:21:05,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 21:21:05,700 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:05,700 INFO L380 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] [2019-10-13 21:21:05,701 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:05,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1832052429, now seen corresponding path program 1 times [2019-10-13 21:21:05,701 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:05,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128788972] [2019-10-13 21:21:05,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:05,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:05,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:05,810 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128788972] [2019-10-13 21:21:05,810 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:05,810 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:21:05,811 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312158154] [2019-10-13 21:21:05,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:21:05,813 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:05,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:21:05,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:21:05,814 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 3 states. [2019-10-13 21:21:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:05,853 INFO L93 Difference]: Finished difference Result 235 states and 275 transitions. [2019-10-13 21:21:05,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:21:05,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-13 21:21:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:05,858 INFO L225 Difference]: With dead ends: 235 [2019-10-13 21:21:05,858 INFO L226 Difference]: Without dead ends: 136 [2019-10-13 21:21:05,863 INFO L600 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 [2019-10-13 21:21:05,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-13 21:21:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-10-13 21:21:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-13 21:21:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2019-10-13 21:21:05,879 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 52 [2019-10-13 21:21:05,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:05,880 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2019-10-13 21:21:05,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:21:05,880 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2019-10-13 21:21:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 21:21:05,882 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:05,882 INFO L380 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] [2019-10-13 21:21:05,883 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:05,883 INFO L82 PathProgramCache]: Analyzing trace with hash -761941703, now seen corresponding path program 1 times [2019-10-13 21:21:05,883 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:05,884 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842136432] [2019-10-13 21:21:05,884 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:05,884 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:05,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:06,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842136432] [2019-10-13 21:21:06,083 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:06,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:21:06,084 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020183255] [2019-10-13 21:21:06,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:21:06,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:06,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:21:06,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:21:06,086 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 7 states. [2019-10-13 21:21:06,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:06,403 INFO L93 Difference]: Finished difference Result 244 states and 289 transitions. [2019-10-13 21:21:06,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:21:06,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 21:21:06,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:06,407 INFO L225 Difference]: With dead ends: 244 [2019-10-13 21:21:06,407 INFO L226 Difference]: Without dead ends: 136 [2019-10-13 21:21:06,408 INFO L600 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 [2019-10-13 21:21:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-13 21:21:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-10-13 21:21:06,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-13 21:21:06,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 157 transitions. [2019-10-13 21:21:06,423 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 157 transitions. Word has length 56 [2019-10-13 21:21:06,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:06,424 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 157 transitions. [2019-10-13 21:21:06,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:21:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 157 transitions. [2019-10-13 21:21:06,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-13 21:21:06,427 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:06,427 INFO L380 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] [2019-10-13 21:21:06,428 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:06,428 INFO L82 PathProgramCache]: Analyzing trace with hash -505794736, now seen corresponding path program 1 times [2019-10-13 21:21:06,428 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:06,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118832531] [2019-10-13 21:21:06,429 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:06,429 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:06,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:06,591 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118832531] [2019-10-13 21:21:06,591 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:06,591 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:21:06,592 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166819896] [2019-10-13 21:21:06,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:21:06,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:06,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:21:06,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:21:06,593 INFO L87 Difference]: Start difference. First operand 136 states and 157 transitions. Second operand 5 states. [2019-10-13 21:21:07,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:07,066 INFO L93 Difference]: Finished difference Result 342 states and 413 transitions. [2019-10-13 21:21:07,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:21:07,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-13 21:21:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:07,074 INFO L225 Difference]: With dead ends: 342 [2019-10-13 21:21:07,075 INFO L226 Difference]: Without dead ends: 234 [2019-10-13 21:21:07,076 INFO L600 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 [2019-10-13 21:21:07,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2019-10-13 21:21:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 216. [2019-10-13 21:21:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-10-13 21:21:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 248 transitions. [2019-10-13 21:21:07,118 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 248 transitions. Word has length 69 [2019-10-13 21:21:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:07,119 INFO L462 AbstractCegarLoop]: Abstraction has 216 states and 248 transitions. [2019-10-13 21:21:07,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:21:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 248 transitions. [2019-10-13 21:21:07,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 21:21:07,122 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:07,122 INFO L380 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] [2019-10-13 21:21:07,122 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:07,123 INFO L82 PathProgramCache]: Analyzing trace with hash -210026842, now seen corresponding path program 1 times [2019-10-13 21:21:07,123 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:07,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956183720] [2019-10-13 21:21:07,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:07,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:07,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:07,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956183720] [2019-10-13 21:21:07,253 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:07,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:21:07,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762997919] [2019-10-13 21:21:07,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:21:07,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:07,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:21:07,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:21:07,256 INFO L87 Difference]: Start difference. First operand 216 states and 248 transitions. Second operand 6 states. [2019-10-13 21:21:07,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:07,468 INFO L93 Difference]: Finished difference Result 574 states and 680 transitions. [2019-10-13 21:21:07,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:21:07,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-10-13 21:21:07,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:07,478 INFO L225 Difference]: With dead ends: 574 [2019-10-13 21:21:07,479 INFO L226 Difference]: Without dead ends: 386 [2019-10-13 21:21:07,480 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:21:07,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2019-10-13 21:21:07,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 380. [2019-10-13 21:21:07,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2019-10-13 21:21:07,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 436 transitions. [2019-10-13 21:21:07,524 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 436 transitions. Word has length 83 [2019-10-13 21:21:07,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:07,524 INFO L462 AbstractCegarLoop]: Abstraction has 380 states and 436 transitions. [2019-10-13 21:21:07,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:21:07,524 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 436 transitions. [2019-10-13 21:21:07,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 21:21:07,527 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:07,527 INFO L380 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] [2019-10-13 21:21:07,528 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:07,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:07,528 INFO L82 PathProgramCache]: Analyzing trace with hash -910798134, now seen corresponding path program 1 times [2019-10-13 21:21:07,528 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:07,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770743549] [2019-10-13 21:21:07,529 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:07,529 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:07,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:07,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:07,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770743549] [2019-10-13 21:21:07,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:07,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:21:07,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163188455] [2019-10-13 21:21:07,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:21:07,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:07,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:21:07,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:21:07,652 INFO L87 Difference]: Start difference. First operand 380 states and 436 transitions. Second operand 7 states. [2019-10-13 21:21:08,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:08,247 INFO L93 Difference]: Finished difference Result 761 states and 896 transitions. [2019-10-13 21:21:08,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:21:08,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-10-13 21:21:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:08,252 INFO L225 Difference]: With dead ends: 761 [2019-10-13 21:21:08,252 INFO L226 Difference]: Without dead ends: 409 [2019-10-13 21:21:08,255 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:21:08,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-10-13 21:21:08,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 379. [2019-10-13 21:21:08,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-13 21:21:08,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 433 transitions. [2019-10-13 21:21:08,301 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 433 transitions. Word has length 87 [2019-10-13 21:21:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:08,302 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 433 transitions. [2019-10-13 21:21:08,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:21:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 433 transitions. [2019-10-13 21:21:08,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 21:21:08,308 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:08,309 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:08,309 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:08,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:08,309 INFO L82 PathProgramCache]: Analyzing trace with hash -777270984, now seen corresponding path program 1 times [2019-10-13 21:21:08,309 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:08,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188386568] [2019-10-13 21:21:08,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:08,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:08,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:21:08,380 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188386568] [2019-10-13 21:21:08,380 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:08,380 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:21:08,380 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530632953] [2019-10-13 21:21:08,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:21:08,382 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:08,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:21:08,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:21:08,383 INFO L87 Difference]: Start difference. First operand 379 states and 433 transitions. Second operand 6 states. [2019-10-13 21:21:08,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:08,425 INFO L93 Difference]: Finished difference Result 744 states and 870 transitions. [2019-10-13 21:21:08,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:21:08,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2019-10-13 21:21:08,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:08,428 INFO L225 Difference]: With dead ends: 744 [2019-10-13 21:21:08,428 INFO L226 Difference]: Without dead ends: 393 [2019-10-13 21:21:08,430 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:21:08,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-10-13 21:21:08,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 389. [2019-10-13 21:21:08,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-13 21:21:08,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 443 transitions. [2019-10-13 21:21:08,453 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 443 transitions. Word has length 103 [2019-10-13 21:21:08,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:08,454 INFO L462 AbstractCegarLoop]: Abstraction has 389 states and 443 transitions. [2019-10-13 21:21:08,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:21:08,454 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 443 transitions. [2019-10-13 21:21:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 21:21:08,458 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:08,458 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:08,458 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:08,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:08,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1151001718, now seen corresponding path program 1 times [2019-10-13 21:21:08,459 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:08,461 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196614924] [2019-10-13 21:21:08,461 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:08,462 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:08,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:21:08,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196614924] [2019-10-13 21:21:08,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:08,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:21:08,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602440814] [2019-10-13 21:21:08,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:21:08,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:08,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:21:08,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:21:08,570 INFO L87 Difference]: Start difference. First operand 389 states and 443 transitions. Second operand 8 states. [2019-10-13 21:21:08,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:08,615 INFO L93 Difference]: Finished difference Result 764 states and 892 transitions. [2019-10-13 21:21:08,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:21:08,615 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-13 21:21:08,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:08,619 INFO L225 Difference]: With dead ends: 764 [2019-10-13 21:21:08,619 INFO L226 Difference]: Without dead ends: 403 [2019-10-13 21:21:08,621 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:21:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-13 21:21:08,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 397. [2019-10-13 21:21:08,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-13 21:21:08,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 451 transitions. [2019-10-13 21:21:08,648 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 451 transitions. Word has length 103 [2019-10-13 21:21:08,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:08,648 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 451 transitions. [2019-10-13 21:21:08,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:21:08,649 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 451 transitions. [2019-10-13 21:21:08,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 21:21:08,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:08,655 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:08,655 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:08,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:08,655 INFO L82 PathProgramCache]: Analyzing trace with hash 910461589, now seen corresponding path program 1 times [2019-10-13 21:21:08,655 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:08,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431452060] [2019-10-13 21:21:08,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:08,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:08,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:21:08,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431452060] [2019-10-13 21:21:08,739 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:08,739 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:21:08,739 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913752944] [2019-10-13 21:21:08,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:21:08,740 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:08,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:21:08,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:21:08,740 INFO L87 Difference]: Start difference. First operand 397 states and 451 transitions. Second operand 4 states. [2019-10-13 21:21:08,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:08,989 INFO L93 Difference]: Finished difference Result 1162 states and 1390 transitions. [2019-10-13 21:21:08,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:21:08,992 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2019-10-13 21:21:08,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:08,998 INFO L225 Difference]: With dead ends: 1162 [2019-10-13 21:21:08,999 INFO L226 Difference]: Without dead ends: 793 [2019-10-13 21:21:09,000 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:21:09,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-13 21:21:09,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 778. [2019-10-13 21:21:09,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2019-10-13 21:21:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 911 transitions. [2019-10-13 21:21:09,065 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 911 transitions. Word has length 103 [2019-10-13 21:21:09,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:09,066 INFO L462 AbstractCegarLoop]: Abstraction has 778 states and 911 transitions. [2019-10-13 21:21:09,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:21:09,066 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 911 transitions. [2019-10-13 21:21:09,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 21:21:09,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:09,068 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:09,069 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:09,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:09,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1450576315, now seen corresponding path program 1 times [2019-10-13 21:21:09,069 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:09,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860736313] [2019-10-13 21:21:09,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:09,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:09,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:21:09,229 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860736313] [2019-10-13 21:21:09,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780434893] [2019-10-13 21:21:09,230 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 [2019-10-13 21:21:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:09,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:21:09,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:21:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:21:09,649 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:21:10,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:21:10,653 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:21:10,654 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-13 21:21:10,654 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125647845] [2019-10-13 21:21:10,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:21:10,655 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:10,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:21:10,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:21:10,656 INFO L87 Difference]: Start difference. First operand 778 states and 911 transitions. Second operand 8 states. [2019-10-13 21:21:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:11,002 INFO L93 Difference]: Finished difference Result 1499 states and 1766 transitions. [2019-10-13 21:21:11,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:21:11,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2019-10-13 21:21:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:11,006 INFO L225 Difference]: With dead ends: 1499 [2019-10-13 21:21:11,006 INFO L226 Difference]: Without dead ends: 749 [2019-10-13 21:21:11,008 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 197 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:21:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2019-10-13 21:21:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2019-10-13 21:21:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-13 21:21:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 863 transitions. [2019-10-13 21:21:11,051 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 863 transitions. Word has length 107 [2019-10-13 21:21:11,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:11,051 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 863 transitions. [2019-10-13 21:21:11,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:21:11,051 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 863 transitions. [2019-10-13 21:21:11,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 21:21:11,056 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:11,056 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:21:11,262 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:21:11,262 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:11,263 INFO L82 PathProgramCache]: Analyzing trace with hash 675241674, now seen corresponding path program 1 times [2019-10-13 21:21:11,265 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:11,265 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790392425] [2019-10-13 21:21:11,265 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:11,266 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:11,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 21:21:11,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790392425] [2019-10-13 21:21:11,388 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:21:11,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:21:11,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625352193] [2019-10-13 21:21:11,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:21:11,390 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:11,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:21:11,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:21:11,390 INFO L87 Difference]: Start difference. First operand 749 states and 863 transitions. Second operand 3 states. [2019-10-13 21:21:11,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:11,446 INFO L93 Difference]: Finished difference Result 1216 states and 1432 transitions. [2019-10-13 21:21:11,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:21:11,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-13 21:21:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:11,454 INFO L225 Difference]: With dead ends: 1216 [2019-10-13 21:21:11,454 INFO L226 Difference]: Without dead ends: 1213 [2019-10-13 21:21:11,455 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:21:11,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2019-10-13 21:21:11,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 887. [2019-10-13 21:21:11,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2019-10-13 21:21:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1042 transitions. [2019-10-13 21:21:11,513 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1042 transitions. Word has length 160 [2019-10-13 21:21:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:11,514 INFO L462 AbstractCegarLoop]: Abstraction has 887 states and 1042 transitions. [2019-10-13 21:21:11,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:21:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1042 transitions. [2019-10-13 21:21:11,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-13 21:21:11,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:11,519 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2019-10-13 21:21:11,520 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:11,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:11,520 INFO L82 PathProgramCache]: Analyzing trace with hash -746542150, now seen corresponding path program 1 times [2019-10-13 21:21:11,520 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:11,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108846765] [2019-10-13 21:21:11,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:11,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:11,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 47 proven. 11 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-13 21:21:11,642 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108846765] [2019-10-13 21:21:11,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981894983] [2019-10-13 21:21:11,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:21:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:11,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:21:11,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:21:12,004 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-13 21:21:12,005 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:21:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 47 proven. 11 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-13 21:21:12,370 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:21:12,370 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2019-10-13 21:21:12,370 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200508647] [2019-10-13 21:21:12,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:21:12,371 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:12,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:21:12,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:21:12,371 INFO L87 Difference]: Start difference. First operand 887 states and 1042 transitions. Second operand 5 states. [2019-10-13 21:21:13,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:13,001 INFO L93 Difference]: Finished difference Result 1845 states and 2279 transitions. [2019-10-13 21:21:13,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:21:13,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 224 [2019-10-13 21:21:13,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:13,009 INFO L225 Difference]: With dead ends: 1845 [2019-10-13 21:21:13,010 INFO L226 Difference]: Without dead ends: 1106 [2019-10-13 21:21:13,012 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 448 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:21:13,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2019-10-13 21:21:13,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1044. [2019-10-13 21:21:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-10-13 21:21:13,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1255 transitions. [2019-10-13 21:21:13,082 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1255 transitions. Word has length 224 [2019-10-13 21:21:13,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:13,082 INFO L462 AbstractCegarLoop]: Abstraction has 1044 states and 1255 transitions. [2019-10-13 21:21:13,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:21:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1255 transitions. [2019-10-13 21:21:13,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-13 21:21:13,088 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:21:13,089 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2019-10-13 21:21:13,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:21:13,294 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:21:13,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:13,295 INFO L82 PathProgramCache]: Analyzing trace with hash 876618940, now seen corresponding path program 1 times [2019-10-13 21:21:13,295 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:21:13,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487439818] [2019-10-13 21:21:13,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:13,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:21:13,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:21:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:13,456 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 38 proven. 17 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2019-10-13 21:21:13,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487439818] [2019-10-13 21:21:13,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475876925] [2019-10-13 21:21:13,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:21:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:21:13,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 20 conjunts are in the unsatisfiable core [2019-10-13 21:21:13,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:21:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 90 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:21:13,988 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:21:14,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:14,153 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:14,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:14,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:14,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:21:14,425 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 42 proven. 7 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-13 21:21:14,426 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1613542259] [2019-10-13 21:21:14,432 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 225 [2019-10-13 21:21:14,465 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:21:14,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:21:14,567 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:21:14,568 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-13 21:21:14,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:21:14,571 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:21:14,652 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-13 21:21:14,652 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:21:14,657 INFO L553 sIntCurrentIteration]: We unified 223 AI predicates to 223 [2019-10-13 21:21:14,657 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:21:14,658 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:21:14,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 8, 9] total 18 [2019-10-13 21:21:14,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313871310] [2019-10-13 21:21:14,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:21:14,660 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:21:14,660 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:21:14,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:21:14,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:21:14,661 INFO L87 Difference]: Start difference. First operand 1044 states and 1255 transitions. Second operand 2 states. [2019-10-13 21:21:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:21:14,672 INFO L93 Difference]: Finished difference Result 1044 states and 1255 transitions. [2019-10-13 21:21:14,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:21:14,673 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 224 [2019-10-13 21:21:14,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:21:14,673 INFO L225 Difference]: With dead ends: 1044 [2019-10-13 21:21:14,673 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:21:14,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:21:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:21:14,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:21:14,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:21:14,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:21:14,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 224 [2019-10-13 21:21:14,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:21:14,677 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:21:14,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:21:14,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:21:14,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:21:14,883 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:21:14,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:21:15,235 INFO L443 ceAbstractionStarter]: For program point L696(lines 696 700) no Hoare annotation was computed. [2019-10-13 21:21:15,235 INFO L443 ceAbstractionStarter]: For program point L696-1(lines 696 700) no Hoare annotation was computed. [2019-10-13 21:21:15,235 INFO L443 ceAbstractionStarter]: For program point L691(line 691) no Hoare annotation was computed. [2019-10-13 21:21:15,235 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 665 720) no Hoare annotation was computed. [2019-10-13 21:21:15,235 INFO L443 ceAbstractionStarter]: For program point L690-2(lines 690 711) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point L712(lines 689 713) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 665 720) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 665 720) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point L766(line 766) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point L766-1(line 766) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 721 780) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point L753(lines 753 757) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point L753-1(lines 753 757) no Hoare annotation was computed. [2019-10-13 21:21:15,236 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 721 780) no Hoare annotation was computed. [2019-10-13 21:21:15,237 INFO L443 ceAbstractionStarter]: For program point L748(line 748) no Hoare annotation was computed. [2019-10-13 21:21:15,237 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 721 780) no Hoare annotation was computed. [2019-10-13 21:21:15,237 INFO L443 ceAbstractionStarter]: For program point L747-2(lines 747 772) no Hoare annotation was computed. [2019-10-13 21:21:15,237 INFO L443 ceAbstractionStarter]: For program point L773(lines 746 774) no Hoare annotation was computed. [2019-10-13 21:21:15,237 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2019-10-13 21:21:15,237 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2019-10-13 21:21:15,237 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2019-10-13 21:21:15,237 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2019-10-13 21:21:15,237 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2019-10-13 21:21:15,237 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 266 288) the Hoare annotation is: true [2019-10-13 21:21:15,238 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 266 288) no Hoare annotation was computed. [2019-10-13 21:21:15,238 INFO L446 ceAbstractionStarter]: At program point L278(line 278) the Hoare annotation is: true [2019-10-13 21:21:15,238 INFO L446 ceAbstractionStarter]: At program point L278-1(line 278) the Hoare annotation is: true [2019-10-13 21:21:15,238 INFO L443 ceAbstractionStarter]: For program point L276(lines 276 283) no Hoare annotation was computed. [2019-10-13 21:21:15,238 INFO L443 ceAbstractionStarter]: For program point L276-1(lines 276 283) no Hoare annotation was computed. [2019-10-13 21:21:15,238 INFO L443 ceAbstractionStarter]: For program point L274(line 274) no Hoare annotation was computed. [2019-10-13 21:21:15,238 INFO L446 ceAbstractionStarter]: At program point L273(line 273) the Hoare annotation is: true [2019-10-13 21:21:15,238 INFO L446 ceAbstractionStarter]: At program point L272(line 272) the Hoare annotation is: true [2019-10-13 21:21:15,238 INFO L446 ceAbstractionStarter]: At program point L272-1(line 272) the Hoare annotation is: true [2019-10-13 21:21:15,239 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 266 288) no Hoare annotation was computed. [2019-10-13 21:21:15,239 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 222 245) no Hoare annotation was computed. [2019-10-13 21:21:15,239 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 222 245) no Hoare annotation was computed. [2019-10-13 21:21:15,239 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 222 245) no Hoare annotation was computed. [2019-10-13 21:21:15,239 INFO L443 ceAbstractionStarter]: For program point L240(line 240) no Hoare annotation was computed. [2019-10-13 21:21:15,239 INFO L443 ceAbstractionStarter]: For program point L239(line 239) no Hoare annotation was computed. [2019-10-13 21:21:15,239 INFO L443 ceAbstractionStarter]: For program point L238(line 238) no Hoare annotation was computed. [2019-10-13 21:21:15,239 INFO L443 ceAbstractionStarter]: For program point L237(line 237) no Hoare annotation was computed. [2019-10-13 21:21:15,240 INFO L443 ceAbstractionStarter]: For program point L236(line 236) no Hoare annotation was computed. [2019-10-13 21:21:15,240 INFO L443 ceAbstractionStarter]: For program point L235(line 235) no Hoare annotation was computed. [2019-10-13 21:21:15,240 INFO L443 ceAbstractionStarter]: For program point L234(line 234) no Hoare annotation was computed. [2019-10-13 21:21:15,240 INFO L443 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2019-10-13 21:21:15,240 INFO L443 ceAbstractionStarter]: For program point L232(line 232) no Hoare annotation was computed. [2019-10-13 21:21:15,240 INFO L443 ceAbstractionStarter]: For program point L231(line 231) no Hoare annotation was computed. [2019-10-13 21:21:15,240 INFO L443 ceAbstractionStarter]: For program point L230(line 230) no Hoare annotation was computed. [2019-10-13 21:21:15,240 INFO L443 ceAbstractionStarter]: For program point L229(line 229) no Hoare annotation was computed. [2019-10-13 21:21:15,241 INFO L443 ceAbstractionStarter]: For program point L228(line 228) no Hoare annotation was computed. [2019-10-13 21:21:15,241 INFO L443 ceAbstractionStarter]: For program point L227(line 227) no Hoare annotation was computed. [2019-10-13 21:21:15,241 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 464 472) no Hoare annotation was computed. [2019-10-13 21:21:15,241 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 464 472) the Hoare annotation is: true [2019-10-13 21:21:15,241 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 464 472) no Hoare annotation was computed. [2019-10-13 21:21:15,241 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 528 546) the Hoare annotation is: true [2019-10-13 21:21:15,241 INFO L443 ceAbstractionStarter]: For program point L537(lines 537 541) no Hoare annotation was computed. [2019-10-13 21:21:15,241 INFO L446 ceAbstractionStarter]: At program point L535(line 535) the Hoare annotation is: true [2019-10-13 21:21:15,241 INFO L443 ceAbstractionStarter]: For program point L537-2(lines 537 541) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point L535-1(line 535) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 528 546) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 528 546) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point L480(lines 480 488) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point L503-1(line 503) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 473 508) no Hoare annotation was computed. [2019-10-13 21:21:15,242 INFO L443 ceAbstractionStarter]: For program point L492(lines 492 500) no Hoare annotation was computed. [2019-10-13 21:21:15,243 INFO L443 ceAbstractionStarter]: For program point L492-2(lines 492 500) no Hoare annotation was computed. [2019-10-13 21:21:15,243 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 473 508) no Hoare annotation was computed. [2019-10-13 21:21:15,243 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 473 508) no Hoare annotation was computed. [2019-10-13 21:21:15,243 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2019-10-13 21:21:15,243 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2019-10-13 21:21:15,243 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 619 664) no Hoare annotation was computed. [2019-10-13 21:21:15,243 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 619 664) no Hoare annotation was computed. [2019-10-13 21:21:15,243 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 619 664) no Hoare annotation was computed. [2019-10-13 21:21:15,243 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 932 977) no Hoare annotation was computed. [2019-10-13 21:21:15,244 INFO L443 ceAbstractionStarter]: For program point L952(lines 952 959) no Hoare annotation was computed. [2019-10-13 21:21:15,244 INFO L443 ceAbstractionStarter]: For program point L946(lines 946 966) no Hoare annotation was computed. [2019-10-13 21:21:15,244 INFO L443 ceAbstractionStarter]: For program point L946-1(lines 946 966) no Hoare annotation was computed. [2019-10-13 21:21:15,244 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 932 977) no Hoare annotation was computed. [2019-10-13 21:21:15,244 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 932 977) no Hoare annotation was computed. [2019-10-13 21:21:15,244 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 255 265) the Hoare annotation is: true [2019-10-13 21:21:15,244 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 255 265) no Hoare annotation was computed. [2019-10-13 21:21:15,244 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 255 265) no Hoare annotation was computed. [2019-10-13 21:21:15,244 INFO L446 ceAbstractionStarter]: At program point L260(line 260) the Hoare annotation is: true [2019-10-13 21:21:15,245 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 453 463) the Hoare annotation is: true [2019-10-13 21:21:15,245 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 453 463) no Hoare annotation was computed. [2019-10-13 21:21:15,245 INFO L446 ceAbstractionStarter]: At program point L458(line 458) the Hoare annotation is: true [2019-10-13 21:21:15,245 INFO L443 ceAbstractionStarter]: For program point L458-1(line 458) no Hoare annotation was computed. [2019-10-13 21:21:15,245 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 453 463) no Hoare annotation was computed. [2019-10-13 21:21:15,245 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 445 452) the Hoare annotation is: true [2019-10-13 21:21:15,245 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 445 452) no Hoare annotation was computed. [2019-10-13 21:21:15,245 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 445 452) no Hoare annotation was computed. [2019-10-13 21:21:15,245 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 175) no Hoare annotation was computed. [2019-10-13 21:21:15,245 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 165 178) no Hoare annotation was computed. [2019-10-13 21:21:15,245 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 165 178) the Hoare annotation is: true [2019-10-13 21:21:15,245 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 165 178) no Hoare annotation was computed. [2019-10-13 21:21:15,246 INFO L446 ceAbstractionStarter]: At program point L413(line 413) the Hoare annotation is: true [2019-10-13 21:21:15,246 INFO L443 ceAbstractionStarter]: For program point L413-1(lines 394 418) no Hoare annotation was computed. [2019-10-13 21:21:15,246 INFO L446 ceAbstractionStarter]: At program point L408(line 408) the Hoare annotation is: true [2019-10-13 21:21:15,246 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 394 418) no Hoare annotation was computed. [2019-10-13 21:21:15,246 INFO L446 ceAbstractionStarter]: At program point L404(line 404) the Hoare annotation is: true [2019-10-13 21:21:15,246 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 394 418) the Hoare annotation is: true [2019-10-13 21:21:15,246 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 410) no Hoare annotation was computed. [2019-10-13 21:21:15,246 INFO L446 ceAbstractionStarter]: At program point L400(line 400) the Hoare annotation is: true [2019-10-13 21:21:15,246 INFO L443 ceAbstractionStarter]: For program point L400-1(line 400) no Hoare annotation was computed. [2019-10-13 21:21:15,246 INFO L443 ceAbstractionStarter]: For program point L398(lines 398 415) no Hoare annotation was computed. [2019-10-13 21:21:15,246 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 360 366) no Hoare annotation was computed. [2019-10-13 21:21:15,246 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 360 366) the Hoare annotation is: true [2019-10-13 21:21:15,246 INFO L443 ceAbstractionStarter]: For program point L578-1(lines 578 584) no Hoare annotation was computed. [2019-10-13 21:21:15,246 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 548 611) the Hoare annotation is: true [2019-10-13 21:21:15,247 INFO L446 ceAbstractionStarter]: At program point L570(line 570) the Hoare annotation is: true [2019-10-13 21:21:15,247 INFO L446 ceAbstractionStarter]: At program point L601(lines 558 603) the Hoare annotation is: true [2019-10-13 21:21:15,247 INFO L443 ceAbstractionStarter]: For program point L568(lines 568 574) no Hoare annotation was computed. [2019-10-13 21:21:15,247 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 568 574) no Hoare annotation was computed. [2019-10-13 21:21:15,247 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 548 611) no Hoare annotation was computed. [2019-10-13 21:21:15,247 INFO L443 ceAbstractionStarter]: For program point L560(lines 560 564) no Hoare annotation was computed. [2019-10-13 21:21:15,247 INFO L446 ceAbstractionStarter]: At program point L604(lines 557 605) the Hoare annotation is: true [2019-10-13 21:21:15,247 INFO L443 ceAbstractionStarter]: For program point L594(lines 594 598) no Hoare annotation was computed. [2019-10-13 21:21:15,247 INFO L446 ceAbstractionStarter]: At program point L594-2(lines 588 599) the Hoare annotation is: true [2019-10-13 21:21:15,247 INFO L443 ceAbstractionStarter]: For program point L559(lines 558 603) no Hoare annotation was computed. [2019-10-13 21:21:15,247 INFO L443 ceAbstractionStarter]: For program point L588(lines 588 599) no Hoare annotation was computed. [2019-10-13 21:21:15,247 INFO L446 ceAbstractionStarter]: At program point L580(line 580) the Hoare annotation is: true [2019-10-13 21:21:15,247 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 548 611) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point L578(lines 578 584) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 886 931) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 886 931) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 886 931) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point L906(lines 906 913) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point L900(lines 900 920) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point L900-1(lines 900 920) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 419 426) the Hoare annotation is: true [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 419 426) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 419 426) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 179 187) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 179 187) the Hoare annotation is: true [2019-10-13 21:21:15,248 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 179 187) no Hoare annotation was computed. [2019-10-13 21:21:15,248 INFO L446 ceAbstractionStarter]: At program point L316(line 316) the Hoare annotation is: true [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point L314(lines 314 320) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point L313(lines 313 323) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L446 ceAbstractionStarter]: At program point L311(line 311) the Hoare annotation is: true [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point L311-1(line 311) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 326) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point L309-1(lines 301 329) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L446 ceAbstractionStarter]: At program point L307(line 307) the Hoare annotation is: true [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point L307-1(line 307) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 301 329) the Hoare annotation is: true [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 301 329) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point L141(lines 141 149) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point L141-2(lines 141 149) no Hoare annotation was computed. [2019-10-13 21:21:15,249 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 133 155) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 133 155) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 133 155) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 293 300) the Hoare annotation is: true [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 293 300) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 293 300) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 783 885) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point L832-2(lines 832 852) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point L853(lines 831 854) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point L812(lines 812 828) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point L872(lines 872 879) no Hoare annotation was computed. [2019-10-13 21:21:15,250 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 783 885) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L833(lines 832 852) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L864(line 864) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L864-1(line 864) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L829(lines 829 870) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 783 885) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L848(line 848) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L848-1(line 848) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L807(lines 807 811) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L871(lines 871 882) no Hoare annotation was computed. [2019-10-13 21:21:15,251 INFO L443 ceAbstractionStarter]: For program point L834(lines 834 838) no Hoare annotation was computed. [2019-10-13 21:21:15,252 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:15,252 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-13 21:21:15,252 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:15,252 INFO L446 ceAbstractionStarter]: At program point L433(line 433) the Hoare annotation is: true [2019-10-13 21:21:15,252 INFO L443 ceAbstractionStarter]: For program point L433-1(line 433) no Hoare annotation was computed. [2019-10-13 21:21:15,252 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 428 444) no Hoare annotation was computed. [2019-10-13 21:21:15,252 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 428 444) the Hoare annotation is: true [2019-10-13 21:21:15,252 INFO L446 ceAbstractionStarter]: At program point L439(line 439) the Hoare annotation is: true [2019-10-13 21:21:15,252 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 428 444) no Hoare annotation was computed. [2019-10-13 21:21:15,252 INFO L443 ceAbstractionStarter]: For program point L435(lines 435 441) no Hoare annotation was computed. [2019-10-13 21:21:15,252 INFO L443 ceAbstractionStarter]: For program point getWaterLevelENTRY(lines 156 164) no Hoare annotation was computed. [2019-10-13 21:21:15,253 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 156 164) no Hoare annotation was computed. [2019-10-13 21:21:15,253 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 156 164) no Hoare annotation was computed. [2019-10-13 21:21:15,253 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 509 527) no Hoare annotation was computed. [2019-10-13 21:21:15,253 INFO L443 ceAbstractionStarter]: For program point L518(lines 518 522) no Hoare annotation was computed. [2019-10-13 21:21:15,253 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 509 527) the Hoare annotation is: true [2019-10-13 21:21:15,253 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 509 527) no Hoare annotation was computed. [2019-10-13 21:21:15,253 INFO L446 ceAbstractionStarter]: At program point L516(line 516) the Hoare annotation is: true [2019-10-13 21:21:15,253 INFO L443 ceAbstractionStarter]: For program point L518-2(lines 518 522) no Hoare annotation was computed. [2019-10-13 21:21:15,253 INFO L443 ceAbstractionStarter]: For program point L516-1(line 516) no Hoare annotation was computed. [2019-10-13 21:21:15,253 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 112 123) the Hoare annotation is: true [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 112 123) no Hoare annotation was computed. [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:15,254 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 124 132) the Hoare annotation is: true [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 124 132) no Hoare annotation was computed. [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 124 132) no Hoare annotation was computed. [2019-10-13 21:21:15,254 INFO L446 ceAbstractionStarter]: At program point L349(line 349) the Hoare annotation is: true [2019-10-13 21:21:15,254 INFO L446 ceAbstractionStarter]: At program point L347(lines 347 353) the Hoare annotation is: true [2019-10-13 21:21:15,254 INFO L446 ceAbstractionStarter]: At program point L342(line 342) the Hoare annotation is: true [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point L340(lines 339 358) no Hoare annotation was computed. [2019-10-13 21:21:15,254 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 336 359) the Hoare annotation is: true [2019-10-13 21:21:15,254 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 336 359) no Hoare annotation was computed. [2019-10-13 21:21:15,255 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 336 359) no Hoare annotation was computed. [2019-10-13 21:21:15,255 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 191 220) no Hoare annotation was computed. [2019-10-13 21:21:15,255 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 191 220) the Hoare annotation is: true [2019-10-13 21:21:15,255 INFO L446 ceAbstractionStarter]: At program point L216(lines 191 220) the Hoare annotation is: true [2019-10-13 21:21:15,255 INFO L443 ceAbstractionStarter]: For program point L212(line 212) no Hoare annotation was computed. [2019-10-13 21:21:15,255 INFO L443 ceAbstractionStarter]: For program point L205(lines 205 209) no Hoare annotation was computed. [2019-10-13 21:21:15,255 INFO L446 ceAbstractionStarter]: At program point L205-1(lines 205 209) the Hoare annotation is: true [2019-10-13 21:21:15,255 INFO L443 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2019-10-13 21:21:15,256 INFO L446 ceAbstractionStarter]: At program point L201-2(lines 201 215) the Hoare annotation is: true [2019-10-13 21:21:15,256 INFO L446 ceAbstractionStarter]: At program point L197(line 197) the Hoare annotation is: true [2019-10-13 21:21:15,256 INFO L443 ceAbstractionStarter]: For program point L197-1(line 197) no Hoare annotation was computed. [2019-10-13 21:21:15,256 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 88 99) the Hoare annotation is: true [2019-10-13 21:21:15,256 INFO L443 ceAbstractionStarter]: For program point L92-1(lines 88 99) no Hoare annotation was computed. [2019-10-13 21:21:15,256 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 88 99) no Hoare annotation was computed. [2019-10-13 21:21:15,256 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 246 252) no Hoare annotation was computed. [2019-10-13 21:21:15,256 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 246 252) the Hoare annotation is: true [2019-10-13 21:21:15,257 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:21:15,257 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-13 21:21:15,257 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:21:15,257 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:21:15,257 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 368 392) the Hoare annotation is: true [2019-10-13 21:21:15,257 INFO L446 ceAbstractionStarter]: At program point L382(line 382) the Hoare annotation is: true [2019-10-13 21:21:15,257 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 368 392) no Hoare annotation was computed. [2019-10-13 21:21:15,257 INFO L446 ceAbstractionStarter]: At program point L378(line 378) the Hoare annotation is: true [2019-10-13 21:21:15,257 INFO L443 ceAbstractionStarter]: For program point L376(lines 376 384) no Hoare annotation was computed. [2019-10-13 21:21:15,258 INFO L446 ceAbstractionStarter]: At program point L374(line 374) the Hoare annotation is: true [2019-10-13 21:21:15,258 INFO L443 ceAbstractionStarter]: For program point L374-1(line 374) no Hoare annotation was computed. [2019-10-13 21:21:15,258 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 389) no Hoare annotation was computed. [2019-10-13 21:21:15,258 INFO L446 ceAbstractionStarter]: At program point L387(line 387) the Hoare annotation is: true [2019-10-13 21:21:15,258 INFO L443 ceAbstractionStarter]: For program point L387-1(lines 368 392) no Hoare annotation was computed. [2019-10-13 21:21:15,258 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 100 111) no Hoare annotation was computed. [2019-10-13 21:21:15,258 INFO L443 ceAbstractionStarter]: For program point L104-1(lines 100 111) no Hoare annotation was computed. [2019-10-13 21:21:15,258 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 100 111) the Hoare annotation is: true [2019-10-13 21:21:15,259 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 979 986) no Hoare annotation was computed. [2019-10-13 21:21:15,259 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 979 986) the Hoare annotation is: true [2019-10-13 21:21:15,259 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2019-10-13 21:21:15,259 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 979 986) no Hoare annotation was computed. [2019-10-13 21:21:15,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:21:15 BoogieIcfgContainer [2019-10-13 21:21:15,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:21:15,270 INFO L168 Benchmark]: Toolchain (without parser) took 12106.82 ms. Allocated memory was 138.9 MB in the beginning and 413.7 MB in the end (delta: 274.7 MB). Free memory was 102.4 MB in the beginning and 251.7 MB in the end (delta: -149.3 MB). Peak memory consumption was 125.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:15,270 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 21:21:15,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.93 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 102.4 MB in the beginning and 168.0 MB in the end (delta: -65.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:15,272 INFO L168 Benchmark]: Boogie Preprocessor took 77.27 ms. Allocated memory is still 200.8 MB. Free memory was 168.0 MB in the beginning and 164.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:15,273 INFO L168 Benchmark]: RCFGBuilder took 1157.60 ms. Allocated memory was 200.8 MB in the beginning and 235.4 MB in the end (delta: 34.6 MB). Free memory was 164.0 MB in the beginning and 194.0 MB in the end (delta: -29.9 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:15,274 INFO L168 Benchmark]: TraceAbstraction took 10157.86 ms. Allocated memory was 235.4 MB in the beginning and 413.7 MB in the end (delta: 178.3 MB). Free memory was 194.0 MB in the beginning and 251.7 MB in the end (delta: -57.7 MB). Peak memory consumption was 120.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:21:15,277 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.93 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 102.4 MB in the beginning and 168.0 MB in the end (delta: -65.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.27 ms. Allocated memory is still 200.8 MB. Free memory was 168.0 MB in the beginning and 164.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1157.60 ms. Allocated memory was 200.8 MB in the beginning and 235.4 MB in the end (delta: 34.6 MB). Free memory was 164.0 MB in the beginning and 194.0 MB in the end (delta: -29.9 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10157.86 ms. Allocated memory was 235.4 MB in the beginning and 413.7 MB in the end (delta: 178.3 MB). Free memory was 194.0 MB in the beginning and 251.7 MB in the end (delta: -57.7 MB). Peak memory consumption was 120.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 983]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 247 locations, 1 error locations. Result: SAFE, OverallTime: 10.0s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 2205 SDtfs, 1236 SDslu, 4100 SDs, 0 SdLazy, 1696 SolverSat, 357 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1002 GetRequests, 915 SyntacticMatches, 9 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1044occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 467 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 1860 PreInvPairs, 1861 NumberOfFragments, 71 HoareAnnotationTreeSize, 1860 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 65 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1977 NumberOfCodeBlocks, 1977 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2513 ConstructedInterpolants, 0 QuantifiedInterpolants, 651363 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2955 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 772/826 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 140, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.7219730941704036, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...