/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_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 22:52:44,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 22:52:44,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 22:52:44,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 22:52:44,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 22:52:44,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 22:52:44,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 22:52:44,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 22:52:44,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 22:52:44,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 22:52:44,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 22:52:44,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 22:52:44,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 22:52:44,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 22:52:44,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 22:52:44,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 22:52:44,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 22:52:44,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 22:52:44,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 22:52:44,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 22:52:44,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 22:52:44,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 22:52:44,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 22:52:44,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 22:52:44,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 22:52:44,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 22:52:44,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 22:52:44,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 22:52:44,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 22:52:44,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 22:52:44,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 22:52:44,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 22:52:44,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 22:52:44,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 22:52:44,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 22:52:44,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 22:52:44,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 22:52:44,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 22:52:44,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 22:52:44,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 22:52:44,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 22:52:44,883 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 22:52:44,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 22:52:44,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 22:52:44,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 22:52:44,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 22:52:44,903 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 22:52:44,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 22:52:44,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 22:52:44,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 22:52:44,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 22:52:44,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 22:52:44,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 22:52:44,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 22:52:44,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 22:52:44,910 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 22:52:44,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 22:52:44,910 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 22:52:44,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 22:52:44,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 22:52:44,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 22:52:44,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 22:52:44,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 22:52:44,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:52:44,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 22:52:44,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 22:52:44,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 22:52:44,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 22:52:44,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 22:52:44,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 22:52:44,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 22:52:44,913 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 22:52:45,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 22:52:45,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 22:52:45,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 22:52:45,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 22:52:45,212 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 22:52:45,213 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-07-19 22:52:45,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f7464ed/69664ddf0e304422929139a8e896edd0/FLAG30cb3c969 [2020-07-19 22:52:45,784 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 22:52:45,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-07-19 22:52:45,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f7464ed/69664ddf0e304422929139a8e896edd0/FLAG30cb3c969 [2020-07-19 22:52:46,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f7464ed/69664ddf0e304422929139a8e896edd0 [2020-07-19 22:52:46,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 22:52:46,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 22:52:46,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 22:52:46,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 22:52:46,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 22:52:46,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278a931d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46, skipping insertion in model container [2020-07-19 22:52:46,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 22:52:46,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 22:52:46,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:52:46,615 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 22:52:46,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:52:46,734 INFO L208 MainTranslator]: Completed translation [2020-07-19 22:52:46,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46 WrapperNode [2020-07-19 22:52:46,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 22:52:46,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 22:52:46,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 22:52:46,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 22:52:46,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (1/1) ... [2020-07-19 22:52:46,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 22:52:46,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 22:52:46,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 22:52:46,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 22:52:46,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (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 22:52:46,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 22:52:46,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 22:52:46,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 22:52:46,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 22:52:46,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 22:52:46,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 22:52:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 22:52:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 22:52:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 22:52:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 22:52:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 22:52:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 22:52:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 22:52:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 22:52:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 22:52:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 22:52:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 22:52:46,926 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 22:52:46,926 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 22:52:46,926 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 22:52:46,926 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 22:52:46,926 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 22:52:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 22:52:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 22:52:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 22:52:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 22:52:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 22:52:46,927 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 22:52:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 22:52:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 22:52:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 22:52:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 22:52:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 22:52:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 22:52:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 22:52:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 22:52:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-19 22:52:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 22:52:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 22:52:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 22:52:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 22:52:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 22:52:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 22:52:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 22:52:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 22:52:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 22:52:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 22:52:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 22:52:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 22:52:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 22:52:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 22:52:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 22:52:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 22:52:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 22:52:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 22:52:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 22:52:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 22:52:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 22:52:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 22:52:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 22:52:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 22:52:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 22:52:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 22:52:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 22:52:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 22:52:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 22:52:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 22:52:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 22:52:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 22:52:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 22:52:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 22:52:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 22:52:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 22:52:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 22:52:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 22:52:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 22:52:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 22:52:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 22:52:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 22:52:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-19 22:52:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 22:52:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 22:52:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 22:52:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 22:52:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 22:52:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 22:52:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 22:52:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 22:52:48,123 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 22:52:48,126 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 22:52:48,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:52:48 BoogieIcfgContainer [2020-07-19 22:52:48,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 22:52:48,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 22:52:48,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 22:52:48,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 22:52:48,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:52:46" (1/3) ... [2020-07-19 22:52:48,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482f76a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:52:48, skipping insertion in model container [2020-07-19 22:52:48,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:46" (2/3) ... [2020-07-19 22:52:48,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482f76a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:52:48, skipping insertion in model container [2020-07-19 22:52:48,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:52:48" (3/3) ... [2020-07-19 22:52:48,142 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-07-19 22:52:48,152 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 22:52:48,164 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 22:52:48,179 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 22:52:48,207 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 22:52:48,208 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 22:52:48,208 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 22:52:48,208 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 22:52:48,209 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 22:52:48,209 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 22:52:48,209 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 22:52:48,209 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 22:52:48,230 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-07-19 22:52:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 22:52:48,239 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:52:48,240 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 22:52:48,241 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:52:48,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:52:48,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1120421974, now seen corresponding path program 1 times [2020-07-19 22:52:48,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:52:48,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835562031] [2020-07-19 22:52:48,257 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:52:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:48,905 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:52:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:48,986 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 22:52:48,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835562031] [2020-07-19 22:52:48,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:52:48,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 22:52:48,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200017205] [2020-07-19 22:52:48,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 22:52:48,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:52:49,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 22:52:49,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:52:49,013 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 3 states. [2020-07-19 22:52:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:52:50,093 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2020-07-19 22:52:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 22:52:50,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-19 22:52:50,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:52:50,113 INFO L225 Difference]: With dead ends: 249 [2020-07-19 22:52:50,114 INFO L226 Difference]: Without dead ends: 135 [2020-07-19 22:52:50,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:52:50,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-07-19 22:52:50,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-07-19 22:52:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-19 22:52:50,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-07-19 22:52:50,261 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 46 [2020-07-19 22:52:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:52:50,262 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-07-19 22:52:50,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 22:52:50,262 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-07-19 22:52:50,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-19 22:52:50,265 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:52:50,266 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 22:52:50,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 22:52:50,266 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:52:50,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:52:50,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1195015831, now seen corresponding path program 1 times [2020-07-19 22:52:50,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:52:50,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696940059] [2020-07-19 22:52:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:52:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:50,588 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:52:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:50,666 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 22:52:50,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696940059] [2020-07-19 22:52:50,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:52:50,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 22:52:50,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869768673] [2020-07-19 22:52:50,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 22:52:50,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:52:50,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 22:52:50,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 22:52:50,670 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 4 states. [2020-07-19 22:52:51,111 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:52:51,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:52:51,761 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2020-07-19 22:52:51,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:52:51,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-19 22:52:51,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:52:51,765 INFO L225 Difference]: With dead ends: 182 [2020-07-19 22:52:51,766 INFO L226 Difference]: Without dead ends: 119 [2020-07-19 22:52:51,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 22:52:51,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-19 22:52:51,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-07-19 22:52:51,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-19 22:52:51,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-07-19 22:52:51,798 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 47 [2020-07-19 22:52:51,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:52:51,798 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-07-19 22:52:51,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 22:52:51,798 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-07-19 22:52:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 22:52:51,800 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:52:51,800 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] [2020-07-19 22:52:51,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 22:52:51,801 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:52:51,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:52:51,801 INFO L82 PathProgramCache]: Analyzing trace with hash -234309885, now seen corresponding path program 1 times [2020-07-19 22:52:51,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:52:51,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932020914] [2020-07-19 22:52:51,802 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:52:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:52,172 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:52:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:52,286 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 22:52:52,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932020914] [2020-07-19 22:52:52,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:52:52,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:52:52,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880946187] [2020-07-19 22:52:52,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:52:52,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:52:52,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:52:52,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:52:52,289 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 8 states. [2020-07-19 22:52:52,690 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:52:52,989 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:52:53,211 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:52:53,471 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:52:54,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:52:54,276 INFO L93 Difference]: Finished difference Result 191 states and 236 transitions. [2020-07-19 22:52:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 22:52:54,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-19 22:52:54,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:52:54,281 INFO L225 Difference]: With dead ends: 191 [2020-07-19 22:52:54,282 INFO L226 Difference]: Without dead ends: 119 [2020-07-19 22:52:54,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 22:52:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-19 22:52:54,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-07-19 22:52:54,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-19 22:52:54,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-07-19 22:52:54,323 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 51 [2020-07-19 22:52:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:52:54,323 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-07-19 22:52:54,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:52:54,323 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-07-19 22:52:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-19 22:52:54,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:52:54,326 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] [2020-07-19 22:52:54,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 22:52:54,326 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:52:54,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:52:54,327 INFO L82 PathProgramCache]: Analyzing trace with hash -962632878, now seen corresponding path program 1 times [2020-07-19 22:52:54,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:52:54,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295440968] [2020-07-19 22:52:54,328 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:52:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,632 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:52:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:54,704 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 22:52:54,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295440968] [2020-07-19 22:52:54,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:52:54,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 22:52:54,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099341284] [2020-07-19 22:52:54,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:52:54,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:52:54,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:52:54,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-19 22:52:54,706 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2020-07-19 22:52:55,032 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:52:56,079 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:52:56,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:52:56,462 INFO L93 Difference]: Finished difference Result 274 states and 340 transitions. [2020-07-19 22:52:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 22:52:56,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-07-19 22:52:56,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:52:56,467 INFO L225 Difference]: With dead ends: 274 [2020-07-19 22:52:56,467 INFO L226 Difference]: Without dead ends: 202 [2020-07-19 22:52:56,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-19 22:52:56,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-19 22:52:56,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 161. [2020-07-19 22:52:56,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-07-19 22:52:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2020-07-19 22:52:56,506 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 59 [2020-07-19 22:52:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:52:56,507 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2020-07-19 22:52:56,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:52:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2020-07-19 22:52:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-19 22:52:56,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:52:56,510 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] [2020-07-19 22:52:56,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 22:52:56,510 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:52:56,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:52:56,511 INFO L82 PathProgramCache]: Analyzing trace with hash 869233952, now seen corresponding path program 1 times [2020-07-19 22:52:56,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:52:56,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374870990] [2020-07-19 22:52:56,511 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:52:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,831 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:52:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:52:56,955 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 22:52:56,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374870990] [2020-07-19 22:52:56,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:52:56,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 22:52:56,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683019199] [2020-07-19 22:52:56,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 22:52:56,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:52:56,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 22:52:56,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:52:56,957 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand 12 states. [2020-07-19 22:52:57,554 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:52:57,866 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:52:58,139 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:52:58,374 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:52:58,863 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:52:59,618 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:52:59,878 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:00,113 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:00,335 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:00,590 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:00,859 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:01,670 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:01,942 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:02,537 INFO L93 Difference]: Finished difference Result 568 states and 750 transitions. [2020-07-19 22:53:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 22:53:02,540 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-07-19 22:53:02,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:02,545 INFO L225 Difference]: With dead ends: 568 [2020-07-19 22:53:02,545 INFO L226 Difference]: Without dead ends: 431 [2020-07-19 22:53:02,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-19 22:53:02,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-07-19 22:53:02,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 373. [2020-07-19 22:53:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-07-19 22:53:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 443 transitions. [2020-07-19 22:53:02,633 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 443 transitions. Word has length 73 [2020-07-19 22:53:02,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:02,633 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 443 transitions. [2020-07-19 22:53:02,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 22:53:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 443 transitions. [2020-07-19 22:53:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-19 22:53:02,637 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:02,637 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:02,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 22:53:02,638 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:02,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:02,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1689893862, now seen corresponding path program 1 times [2020-07-19 22:53:02,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:02,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719789399] [2020-07-19 22:53:02,639 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:53:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:02,999 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-19 22:53:03,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719789399] [2020-07-19 22:53:03,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970960979] [2020-07-19 22:53:03,193 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72dd7ad2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:03,573 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72dd7ad2 issued 3 check-sat command(s) [2020-07-19 22:53:03,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:03,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-19 22:53:03,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:03,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:53:03,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 17 [2020-07-19 22:53:03,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915854744] [2020-07-19 22:53:03,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:53:03,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:03,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:53:03,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-19 22:53:03,729 INFO L87 Difference]: Start difference. First operand 373 states and 443 transitions. Second operand 8 states. [2020-07-19 22:53:04,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:04,892 INFO L93 Difference]: Finished difference Result 906 states and 1196 transitions. [2020-07-19 22:53:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 22:53:04,893 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-07-19 22:53:04,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:04,899 INFO L225 Difference]: With dead ends: 906 [2020-07-19 22:53:04,900 INFO L226 Difference]: Without dead ends: 650 [2020-07-19 22:53:04,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-07-19 22:53:04,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-07-19 22:53:05,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 578. [2020-07-19 22:53:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-07-19 22:53:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 714 transitions. [2020-07-19 22:53:05,033 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 714 transitions. Word has length 117 [2020-07-19 22:53:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:05,033 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 714 transitions. [2020-07-19 22:53:05,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:53:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 714 transitions. [2020-07-19 22:53:05,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-19 22:53:05,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:05,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:05,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-19 22:53:05,251 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:05,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:05,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1648815792, now seen corresponding path program 1 times [2020-07-19 22:53:05,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:05,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267420660] [2020-07-19 22:53:05,252 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:53:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,510 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 22:53:05,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267420660] [2020-07-19 22:53:05,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451486228] [2020-07-19 22:53:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c3ab7c2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:06,180 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c3ab7c2 issued 3 check-sat command(s) [2020-07-19 22:53:06,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:06,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 22:53:06,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:06,239 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-19 22:53:06,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:53:06,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-19 22:53:06,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564890208] [2020-07-19 22:53:06,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:53:06,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:06,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:53:06,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-19 22:53:06,241 INFO L87 Difference]: Start difference. First operand 578 states and 714 transitions. Second operand 6 states. [2020-07-19 22:53:06,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:06,386 INFO L93 Difference]: Finished difference Result 1152 states and 1454 transitions. [2020-07-19 22:53:06,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 22:53:06,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-07-19 22:53:06,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:06,392 INFO L225 Difference]: With dead ends: 1152 [2020-07-19 22:53:06,392 INFO L226 Difference]: Without dead ends: 598 [2020-07-19 22:53:06,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:53:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-07-19 22:53:06,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-07-19 22:53:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-07-19 22:53:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 738 transitions. [2020-07-19 22:53:06,511 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 738 transitions. Word has length 109 [2020-07-19 22:53:06,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:06,512 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 738 transitions. [2020-07-19 22:53:06,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:53:06,512 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 738 transitions. [2020-07-19 22:53:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-19 22:53:06,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:06,515 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:06,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:06,728 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:06,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:06,729 INFO L82 PathProgramCache]: Analyzing trace with hash -2066212398, now seen corresponding path program 1 times [2020-07-19 22:53:06,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:06,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914204342] [2020-07-19 22:53:06,730 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:53:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:06,994 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 22:53:07,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914204342] [2020-07-19 22:53:07,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314682356] [2020-07-19 22:53:07,153 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3181a8f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:07,536 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3181a8f issued 3 check-sat command(s) [2020-07-19 22:53:07,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:07,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-19 22:53:07,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-19 22:53:07,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:53:07,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2020-07-19 22:53:07,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084703021] [2020-07-19 22:53:07,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 22:53:07,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:07,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 22:53:07,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 22:53:07,612 INFO L87 Difference]: Start difference. First operand 598 states and 738 transitions. Second operand 5 states. [2020-07-19 22:53:07,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:07,714 INFO L93 Difference]: Finished difference Result 1053 states and 1327 transitions. [2020-07-19 22:53:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:53:07,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-07-19 22:53:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:07,718 INFO L225 Difference]: With dead ends: 1053 [2020-07-19 22:53:07,718 INFO L226 Difference]: Without dead ends: 479 [2020-07-19 22:53:07,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 22:53:07,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-07-19 22:53:07,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2020-07-19 22:53:07,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-19 22:53:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 581 transitions. [2020-07-19 22:53:07,810 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 581 transitions. Word has length 109 [2020-07-19 22:53:07,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:07,810 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 581 transitions. [2020-07-19 22:53:07,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 22:53:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 581 transitions. [2020-07-19 22:53:07,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-19 22:53:07,812 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:07,813 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:08,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:08,028 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:08,029 INFO L82 PathProgramCache]: Analyzing trace with hash 147640793, now seen corresponding path program 1 times [2020-07-19 22:53:08,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:08,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070765116] [2020-07-19 22:53:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:53:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,287 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-19 22:53:08,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070765116] [2020-07-19 22:53:08,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729021440] [2020-07-19 22:53:08,462 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72bc9a3 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:08,858 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72bc9a3 issued 4 check-sat command(s) [2020-07-19 22:53:08,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:08,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 22:53:08,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:08,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 22:53:08,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 14 [2020-07-19 22:53:08,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617292136] [2020-07-19 22:53:08,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-19 22:53:08,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:08,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-19 22:53:08,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-19 22:53:08,940 INFO L87 Difference]: Start difference. First operand 479 states and 581 transitions. Second operand 14 states. [2020-07-19 22:53:09,389 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:10,034 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:11,012 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-19 22:53:11,298 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:11,568 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:12,031 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-19 22:53:12,291 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:12,549 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:13,245 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:13,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:13,991 INFO L93 Difference]: Finished difference Result 969 states and 1243 transitions. [2020-07-19 22:53:13,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-19 22:53:13,992 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 113 [2020-07-19 22:53:13,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:13,999 INFO L225 Difference]: With dead ends: 969 [2020-07-19 22:53:13,999 INFO L226 Difference]: Without dead ends: 564 [2020-07-19 22:53:14,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 153 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=301, Invalid=755, Unknown=0, NotChecked=0, Total=1056 [2020-07-19 22:53:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-07-19 22:53:14,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 467. [2020-07-19 22:53:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-07-19 22:53:14,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 565 transitions. [2020-07-19 22:53:14,135 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 565 transitions. Word has length 113 [2020-07-19 22:53:14,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:14,137 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 565 transitions. [2020-07-19 22:53:14,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-19 22:53:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 565 transitions. [2020-07-19 22:53:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-19 22:53:14,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:14,140 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:14,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:14,355 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:14,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:14,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1088865250, now seen corresponding path program 2 times [2020-07-19 22:53:14,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:14,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811446900] [2020-07-19 22:53:14,357 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b13415 [2020-07-19 22:53:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:53:14,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:53:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:53:14,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:53:14,706 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 22:53:14,706 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 22:53:14,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-19 22:53:14,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:53:14 BoogieIcfgContainer [2020-07-19 22:53:14,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 22:53:14,922 INFO L168 Benchmark]: Toolchain (without parser) took 28841.99 ms. Allocated memory was 138.4 MB in the beginning and 603.5 MB in the end (delta: 465.0 MB). Free memory was 102.3 MB in the beginning and 233.7 MB in the end (delta: -131.4 MB). Peak memory consumption was 333.6 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:14,923 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 22:53:14,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.01 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 101.8 MB in the beginning and 173.9 MB in the end (delta: -72.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:14,924 INFO L168 Benchmark]: Boogie Preprocessor took 112.49 ms. Allocated memory is still 203.9 MB. Free memory was 173.9 MB in the beginning and 169.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:14,925 INFO L168 Benchmark]: RCFGBuilder took 1284.30 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 169.7 MB in the beginning and 201.5 MB in the end (delta: -31.8 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:14,926 INFO L168 Benchmark]: TraceAbstraction took 26786.33 ms. Allocated memory was 236.5 MB in the beginning and 603.5 MB in the end (delta: 367.0 MB). Free memory was 201.5 MB in the beginning and 233.7 MB in the end (delta: -32.2 MB). Peak memory consumption was 334.8 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:14,929 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.01 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 101.8 MB in the beginning and 173.9 MB in the end (delta: -72.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.49 ms. Allocated memory is still 203.9 MB. Free memory was 173.9 MB in the beginning and 169.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1284.30 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 169.7 MB in the beginning and 201.5 MB in the end (delta: -31.8 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26786.33 ms. Allocated memory was 236.5 MB in the beginning and 603.5 MB in the end (delta: 367.0 MB). Free memory was 201.5 MB in the beginning and 233.7 MB in the end (delta: -32.2 MB). Peak memory consumption was 334.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L487] int retValue_acc ; [L488] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L492] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L493] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L494] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L498] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L499] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L567] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L567] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L720] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L852] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L754] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L758] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L777] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L758] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L735] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L598] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L720] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L722] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L752] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L767] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L735] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L598] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L720] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L722] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L767] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L884] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L884] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L888] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L869] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.5s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 989 SDtfs, 1902 SDslu, 1530 SDs, 0 SdLazy, 3983 SolverSat, 1219 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 805 GetRequests, 679 SyntacticMatches, 7 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=598occurred in iteration=7, 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, 344 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1320 NumberOfCodeBlocks, 1243 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1159 ConstructedInterpolants, 0 QuantifiedInterpolants, 323342 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2954 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 178/200 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...