/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 22:45:32,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 22:45:32,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 22:45:32,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 22:45:32,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 22:45:32,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 22:45:32,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 22:45:32,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 22:45:32,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 22:45:32,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 22:45:32,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 22:45:32,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 22:45:32,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 22:45:32,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 22:45:32,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 22:45:32,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 22:45:32,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 22:45:32,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 22:45:32,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 22:45:32,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 22:45:32,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 22:45:32,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 22:45:32,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 22:45:32,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 22:45:32,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 22:45:32,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 22:45:32,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 22:45:32,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 22:45:32,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 22:45:32,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 22:45:32,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 22:45:32,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 22:45:32,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 22:45:32,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 22:45:32,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 22:45:32,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 22:45:32,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 22:45:32,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 22:45:32,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 22:45:32,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 22:45:32,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 22:45:32,879 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 [2020-07-19 22:45:32,894 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 22:45:32,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 22:45:32,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 22:45:32,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 22:45:32,896 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 22:45:32,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 22:45:32,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 22:45:32,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 22:45:32,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 22:45:32,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 22:45:32,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 22:45:32,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 22:45:32,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 22:45:32,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 22:45:32,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 22:45:32,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 22:45:32,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 22:45:32,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 22:45:32,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 22:45:32,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 22:45:32,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 22:45:32,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:45:32,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 22:45:32,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 22:45:32,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 22:45:32,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 22:45:32,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 22:45:32,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 22:45:32,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 22:45:32,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 22:45:33,186 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 22:45:33,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 22:45:33,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 22:45:33,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 22:45:33,212 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 22:45:33,212 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-07-19 22:45:33,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f0b3da4/457849179dc44a168a24765a15ef41c0/FLAG3c2888ce7 [2020-07-19 22:45:33,816 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 22:45:33,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-07-19 22:45:33,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f0b3da4/457849179dc44a168a24765a15ef41c0/FLAG3c2888ce7 [2020-07-19 22:45:34,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f0b3da4/457849179dc44a168a24765a15ef41c0 [2020-07-19 22:45:34,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 22:45:34,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 22:45:34,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 22:45:34,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 22:45:34,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 22:45:34,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448364b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34, skipping insertion in model container [2020-07-19 22:45:34,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 22:45:34,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 22:45:34,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:45:34,628 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 22:45:34,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:45:34,790 INFO L208 MainTranslator]: Completed translation [2020-07-19 22:45:34,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34 WrapperNode [2020-07-19 22:45:34,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 22:45:34,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 22:45:34,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 22:45:34,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 22:45:34,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (1/1) ... [2020-07-19 22:45:34,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 22:45:34,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 22:45:34,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 22:45:34,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 22:45:34,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (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 [2020-07-19 22:45:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 22:45:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 22:45:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 22:45:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-19 22:45:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 22:45:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 22:45:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 22:45:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 22:45:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 22:45:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 22:45:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 22:45:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-19 22:45:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 22:45:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 22:45:34,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 22:45:34,958 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 22:45:34,958 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 22:45:34,958 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 22:45:34,958 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 22:45:34,958 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 22:45:34,959 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 22:45:34,959 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 22:45:34,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 22:45:34,959 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 22:45:34,959 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 22:45:34,959 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 22:45:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 22:45:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 22:45:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 22:45:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 22:45:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 22:45:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 22:45:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 22:45:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-19 22:45:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 22:45:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 22:45:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 22:45:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 22:45:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 22:45:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 22:45:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 22:45:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 22:45:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 22:45:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 22:45:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 22:45:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 22:45:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 22:45:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-19 22:45:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 22:45:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 22:45:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 22:45:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 22:45:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 22:45:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 22:45:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-19 22:45:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 22:45:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 22:45:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 22:45:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 22:45:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 22:45:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 22:45:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 22:45:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 22:45:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 22:45:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 22:45:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 22:45:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 22:45:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 22:45:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 22:45:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 22:45:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 22:45:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 22:45:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 22:45:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 22:45:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 22:45:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-19 22:45:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 22:45:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 22:45:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 22:45:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 22:45:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 22:45:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 22:45:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 22:45:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 22:45:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 22:45:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 22:45:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 22:45:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 22:45:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 22:45:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 22:45:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 22:45:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 22:45:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 22:45:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 22:45:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 22:45:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 22:45:36,104 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 22:45:36,104 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 22:45:36,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:36 BoogieIcfgContainer [2020-07-19 22:45:36,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 22:45:36,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 22:45:36,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 22:45:36,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 22:45:36,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:45:34" (1/3) ... [2020-07-19 22:45:36,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b250a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:45:36, skipping insertion in model container [2020-07-19 22:45:36,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:34" (2/3) ... [2020-07-19 22:45:36,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b250a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:45:36, skipping insertion in model container [2020-07-19 22:45:36,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:36" (3/3) ... [2020-07-19 22:45:36,118 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-07-19 22:45:36,128 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 22:45:36,136 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 22:45:36,150 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 22:45:36,176 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 22:45:36,176 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 22:45:36,176 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 22:45:36,176 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 22:45:36,177 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 22:45:36,177 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 22:45:36,177 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 22:45:36,177 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 22:45:36,200 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-07-19 22:45:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 22:45:36,210 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:36,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:36,212 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:36,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:36,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1040081704, now seen corresponding path program 1 times [2020-07-19 22:45:36,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:36,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012105511] [2020-07-19 22:45:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:45:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:36,832 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:36,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012105511] [2020-07-19 22:45:36,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:36,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 22:45:36,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230519991] [2020-07-19 22:45:36,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 22:45:36,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:36,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 22:45:36,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:45:36,951 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2020-07-19 22:45:38,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:38,141 INFO L93 Difference]: Finished difference Result 306 states and 398 transitions. [2020-07-19 22:45:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 22:45:38,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-19 22:45:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:38,156 INFO L225 Difference]: With dead ends: 306 [2020-07-19 22:45:38,157 INFO L226 Difference]: Without dead ends: 165 [2020-07-19 22:45:38,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:45:38,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-07-19 22:45:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 132. [2020-07-19 22:45:38,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-19 22:45:38,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2020-07-19 22:45:38,255 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2020-07-19 22:45:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:38,255 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2020-07-19 22:45:38,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 22:45:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2020-07-19 22:45:38,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-19 22:45:38,260 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:38,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:38,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 22:45:38,261 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:38,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:38,261 INFO L82 PathProgramCache]: Analyzing trace with hash -849158610, now seen corresponding path program 1 times [2020-07-19 22:45:38,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:38,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859593983] [2020-07-19 22:45:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:45:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:38,699 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:38,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:38,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859593983] [2020-07-19 22:45:38,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:38,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 22:45:38,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748260158] [2020-07-19 22:45:38,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 22:45:38,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:38,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 22:45:38,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 22:45:38,773 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 4 states. [2020-07-19 22:45:39,286 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:40,119 INFO L93 Difference]: Finished difference Result 235 states and 285 transitions. [2020-07-19 22:45:40,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:45:40,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-19 22:45:40,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:40,124 INFO L225 Difference]: With dead ends: 235 [2020-07-19 22:45:40,125 INFO L226 Difference]: Without dead ends: 149 [2020-07-19 22:45:40,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 22:45:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-07-19 22:45:40,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2020-07-19 22:45:40,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-19 22:45:40,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2020-07-19 22:45:40,169 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2020-07-19 22:45:40,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:40,169 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2020-07-19 22:45:40,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 22:45:40,170 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2020-07-19 22:45:40,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 22:45:40,172 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:40,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:40,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 22:45:40,173 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:40,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:40,173 INFO L82 PathProgramCache]: Analyzing trace with hash 846018297, now seen corresponding path program 1 times [2020-07-19 22:45:40,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:40,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523334361] [2020-07-19 22:45:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:45:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:40,549 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:40,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523334361] [2020-07-19 22:45:40,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:40,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:45:40,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778140388] [2020-07-19 22:45:40,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:45:40,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:40,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:45:40,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:45:40,726 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 8 states. [2020-07-19 22:45:41,132 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:41,478 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:45:41,756 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:42,010 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:43,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:43,246 INFO L93 Difference]: Finished difference Result 248 states and 303 transitions. [2020-07-19 22:45:43,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 22:45:43,246 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-19 22:45:43,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:43,250 INFO L225 Difference]: With dead ends: 248 [2020-07-19 22:45:43,251 INFO L226 Difference]: Without dead ends: 149 [2020-07-19 22:45:43,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:45:43,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-07-19 22:45:43,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2020-07-19 22:45:43,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-19 22:45:43,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2020-07-19 22:45:43,287 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2020-07-19 22:45:43,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:43,287 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2020-07-19 22:45:43,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:45:43,288 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2020-07-19 22:45:43,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-19 22:45:43,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:43,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:43,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 22:45:43,291 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:43,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:43,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1478840967, now seen corresponding path program 1 times [2020-07-19 22:45:43,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:43,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581181483] [2020-07-19 22:45:43,292 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:45:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,583 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:43,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:43,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581181483] [2020-07-19 22:45:43,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:43,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 22:45:43,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670291250] [2020-07-19 22:45:43,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:45:43,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:43,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:45:43,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-19 22:45:43,693 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 6 states. [2020-07-19 22:45:44,050 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:45,186 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:45,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:45,862 INFO L93 Difference]: Finished difference Result 345 states and 425 transitions. [2020-07-19 22:45:45,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:45:45,863 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-07-19 22:45:45,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:45,867 INFO L225 Difference]: With dead ends: 345 [2020-07-19 22:45:45,867 INFO L226 Difference]: Without dead ends: 246 [2020-07-19 22:45:45,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:45:45,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-19 22:45:45,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 203. [2020-07-19 22:45:45,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-19 22:45:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2020-07-19 22:45:45,930 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2020-07-19 22:45:45,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:45,931 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2020-07-19 22:45:45,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:45:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2020-07-19 22:45:45,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-19 22:45:45,933 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:45,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:45,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 22:45:45,934 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:45,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:45,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1284194314, now seen corresponding path program 1 times [2020-07-19 22:45:45,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:45,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295555127] [2020-07-19 22:45:45,935 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:45:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,259 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:46,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295555127] [2020-07-19 22:45:46,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:46,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:45:46,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197020910] [2020-07-19 22:45:46,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:45:46,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:46,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:45:46,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:45:46,364 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 8 states. [2020-07-19 22:45:46,945 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:48,120 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:48,376 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:48,601 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:48,850 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:49,146 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:50,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:50,156 INFO L93 Difference]: Finished difference Result 607 states and 746 transitions. [2020-07-19 22:45:50,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 22:45:50,158 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-07-19 22:45:50,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:50,163 INFO L225 Difference]: With dead ends: 607 [2020-07-19 22:45:50,163 INFO L226 Difference]: Without dead ends: 428 [2020-07-19 22:45:50,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-19 22:45:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-07-19 22:45:50,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 361. [2020-07-19 22:45:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-07-19 22:45:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 410 transitions. [2020-07-19 22:45:50,277 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 410 transitions. Word has length 79 [2020-07-19 22:45:50,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:50,277 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 410 transitions. [2020-07-19 22:45:50,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:45:50,278 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 410 transitions. [2020-07-19 22:45:50,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-19 22:45:50,280 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:50,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:50,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 22:45:50,280 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:50,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:50,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1377771002, now seen corresponding path program 1 times [2020-07-19 22:45:50,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:50,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825236551] [2020-07-19 22:45:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:45:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,553 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:50,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825236551] [2020-07-19 22:45:50,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:50,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 22:45:50,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209278892] [2020-07-19 22:45:50,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 22:45:50,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:50,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 22:45:50,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 22:45:50,719 INFO L87 Difference]: Start difference. First operand 361 states and 410 transitions. Second operand 9 states. [2020-07-19 22:45:51,159 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:52,270 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:52,487 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:52,740 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:52,985 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:53,227 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:54,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:54,289 INFO L93 Difference]: Finished difference Result 470 states and 590 transitions. [2020-07-19 22:45:54,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-19 22:45:54,290 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-07-19 22:45:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:54,295 INFO L225 Difference]: With dead ends: 470 [2020-07-19 22:45:54,295 INFO L226 Difference]: Without dead ends: 467 [2020-07-19 22:45:54,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-19 22:45:54,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-07-19 22:45:54,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 361. [2020-07-19 22:45:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-07-19 22:45:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2020-07-19 22:45:54,368 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 83 [2020-07-19 22:45:54,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:54,369 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2020-07-19 22:45:54,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 22:45:54,369 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2020-07-19 22:45:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-19 22:45:54,371 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:54,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:54,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 22:45:54,372 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:54,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:54,372 INFO L82 PathProgramCache]: Analyzing trace with hash 453090503, now seen corresponding path program 1 times [2020-07-19 22:45:54,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:54,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925517204] [2020-07-19 22:45:54,373 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:45:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,607 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:54,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:54,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925517204] [2020-07-19 22:45:54,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:54,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 22:45:54,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267591149] [2020-07-19 22:45:54,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 22:45:54,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:54,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 22:45:54,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 22:45:54,739 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand 9 states. [2020-07-19 22:45:55,804 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:56,060 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:45:56,314 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:56,552 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:57,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:57,568 INFO L93 Difference]: Finished difference Result 808 states and 990 transitions. [2020-07-19 22:45:57,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:45:57,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-07-19 22:45:57,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:57,572 INFO L225 Difference]: With dead ends: 808 [2020-07-19 22:45:57,572 INFO L226 Difference]: Without dead ends: 471 [2020-07-19 22:45:57,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-19 22:45:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-07-19 22:45:57,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 371. [2020-07-19 22:45:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-07-19 22:45:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 419 transitions. [2020-07-19 22:45:57,654 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 419 transitions. Word has length 84 [2020-07-19 22:45:57,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:57,655 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 419 transitions. [2020-07-19 22:45:57,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 22:45:57,655 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 419 transitions. [2020-07-19 22:45:57,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-19 22:45:57,657 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:57,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:57,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 22:45:57,657 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:57,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:57,658 INFO L82 PathProgramCache]: Analyzing trace with hash 475722757, now seen corresponding path program 1 times [2020-07-19 22:45:57,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:57,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335973396] [2020-07-19 22:45:57,658 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:45:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:57,932 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:58,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335973396] [2020-07-19 22:45:58,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:58,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-19 22:45:58,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053538278] [2020-07-19 22:45:58,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 22:45:58,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:58,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 22:45:58,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:45:58,117 INFO L87 Difference]: Start difference. First operand 371 states and 419 transitions. Second operand 11 states. [2020-07-19 22:45:58,780 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:59,014 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:59,233 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:59,867 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:00,152 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:00,402 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:46:01,526 INFO L93 Difference]: Finished difference Result 832 states and 1030 transitions. [2020-07-19 22:46:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 22:46:01,527 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2020-07-19 22:46:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:46:01,533 INFO L225 Difference]: With dead ends: 832 [2020-07-19 22:46:01,533 INFO L226 Difference]: Without dead ends: 485 [2020-07-19 22:46:01,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-19 22:46:01,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-07-19 22:46:01,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 379. [2020-07-19 22:46:01,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-07-19 22:46:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 427 transitions. [2020-07-19 22:46:01,618 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 427 transitions. Word has length 84 [2020-07-19 22:46:01,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:46:01,619 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 427 transitions. [2020-07-19 22:46:01,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 22:46:01,619 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 427 transitions. [2020-07-19 22:46:01,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-19 22:46:01,622 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:46:01,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:46:01,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 22:46:01,622 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:46:01,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:46:01,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1501214756, now seen corresponding path program 1 times [2020-07-19 22:46:01,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:46:01,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818392406] [2020-07-19 22:46:01,623 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:46:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:01,944 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:46:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:46:02,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818392406] [2020-07-19 22:46:02,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:46:02,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 22:46:02,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200642146] [2020-07-19 22:46:02,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 22:46:02,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:46:02,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 22:46:02,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-19 22:46:02,106 INFO L87 Difference]: Start difference. First operand 379 states and 427 transitions. Second operand 7 states. [2020-07-19 22:46:02,791 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:46:03,568 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:46:06,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:46:06,126 INFO L93 Difference]: Finished difference Result 1363 states and 1816 transitions. [2020-07-19 22:46:06,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-19 22:46:06,127 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-07-19 22:46:06,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:46:06,134 INFO L225 Difference]: With dead ends: 1363 [2020-07-19 22:46:06,134 INFO L226 Difference]: Without dead ends: 1008 [2020-07-19 22:46:06,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-07-19 22:46:06,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2020-07-19 22:46:06,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 809. [2020-07-19 22:46:06,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-07-19 22:46:06,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 973 transitions. [2020-07-19 22:46:06,291 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 973 transitions. Word has length 84 [2020-07-19 22:46:06,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:46:06,291 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 973 transitions. [2020-07-19 22:46:06,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 22:46:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 973 transitions. [2020-07-19 22:46:06,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 22:46:06,293 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:46:06,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:46:06,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 22:46:06,294 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:46:06,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:46:06,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1300385726, now seen corresponding path program 1 times [2020-07-19 22:46:06,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:46:06,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054940148] [2020-07-19 22:46:06,295 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1031c98e [2020-07-19 22:46:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:46:06,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:46:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:46:06,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:46:06,475 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 22:46:06,475 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 22:46:06,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-19 22:46:06,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:46:06 BoogieIcfgContainer [2020-07-19 22:46:06,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 22:46:06,618 INFO L168 Benchmark]: Toolchain (without parser) took 32512.11 ms. Allocated memory was 137.4 MB in the beginning and 663.2 MB in the end (delta: 525.9 MB). Free memory was 100.8 MB in the beginning and 151.3 MB in the end (delta: -50.5 MB). Peak memory consumption was 475.4 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:06,619 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 22:46:06,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.28 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 168.3 MB in the end (delta: -67.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:06,620 INFO L168 Benchmark]: Boogie Preprocessor took 89.59 ms. Allocated memory is still 201.3 MB. Free memory was 168.3 MB in the beginning and 164.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:06,621 INFO L168 Benchmark]: RCFGBuilder took 1228.54 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 164.1 MB in the beginning and 193.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:06,622 INFO L168 Benchmark]: TraceAbstraction took 30505.41 ms. Allocated memory was 232.8 MB in the beginning and 663.2 MB in the end (delta: 430.4 MB). Free memory was 193.4 MB in the beginning and 151.3 MB in the end (delta: 42.1 MB). Peak memory consumption was 472.6 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:06,626 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.28 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 168.3 MB in the end (delta: -67.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.59 ms. Allocated memory is still 201.3 MB. Free memory was 168.3 MB in the beginning and 164.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1228.54 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 164.1 MB in the beginning and 193.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30505.41 ms. Allocated memory was 232.8 MB in the beginning and 663.2 MB in the end (delta: 430.4 MB). Free memory was 193.4 MB in the beginning and 151.3 MB in the end (delta: 42.1 MB). Peak memory consumption was 472.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=170, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L258] int retValue_acc ; [L259] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L263] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L264] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L265] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L265] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L265] tmp = valid_product() [L267] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L269] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L270] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L249] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L327] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L329] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L335] tmp = __VERIFIER_nondet_int() [L337] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L339] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE waterLevel < 2 [L95] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L339] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L349] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L349] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___2)) [L363] tmp___1 = __VERIFIER_nondet_int() [L365] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L372] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L402] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L409] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L411] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L457] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L475] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L156] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L560] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L436] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] tmp = isHighWaterLevel() [L438] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L440] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L440] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L475] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L411] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L417] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L388] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 239 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 24.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1109 SDtfs, 1834 SDslu, 1015 SDs, 0 SdLazy, 5282 SolverSat, 1251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 321 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=809occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 706 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 191384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...