./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d8e8f57de68bd156f96d4553940231369dc2e0f8c550ee7a61d6446a6f476745 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:58:55,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:58:55,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:58:55,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:58:55,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:58:55,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:58:55,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:58:55,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:58:55,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:58:55,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:58:55,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:58:55,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:58:55,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:58:55,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:58:55,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:58:55,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:58:55,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:58:55,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:58:55,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:58:55,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:58:55,804 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:58:55,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:58:55,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:58:55,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:58:55,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:58:55,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:58:55,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:58:55,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:58:55,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:58:55,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:58:55,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:58:55,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:58:55,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:58:55,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:58:55,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:58:55,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:58:55,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:58:55,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:58:55,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:58:55,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:58:55,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:58:55,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:58:55,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:58:55,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:58:55,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:58:55,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:58:55,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:58:55,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:58:55,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:58:55,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:58:55,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:58:55,837 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:58:55,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:58:55,838 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:58:55,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:58:55,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:58:55,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:58:55,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:58:55,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:58:55,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:58:55,839 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:58:55,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:58:55,839 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:58:55,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:58:55,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:58:55,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:58:55,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:58:55,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:58:55,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:58:55,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:58:55,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:58:55,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:58:55,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:58:55,841 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:58:55,842 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:58:55,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:58:55,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e8f57de68bd156f96d4553940231369dc2e0f8c550ee7a61d6446a6f476745 [2022-07-13 17:58:56,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:58:56,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:58:56,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:58:56,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:58:56,075 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:58:56,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2022-07-13 17:58:56,139 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba986f91/a21da3895969454db48385102abcae0a/FLAGdca1427d6 [2022-07-13 17:58:56,549 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:58:56,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2022-07-13 17:58:56,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba986f91/a21da3895969454db48385102abcae0a/FLAGdca1427d6 [2022-07-13 17:58:56,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba986f91/a21da3895969454db48385102abcae0a [2022-07-13 17:58:56,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:58:56,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:58:56,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:58:56,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:58:56,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:58:56,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2f7e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56, skipping insertion in model container [2022-07-13 17:58:56,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:58:56,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:58:56,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c[12672,12685] [2022-07-13 17:58:56,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:58:56,846 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:58:56,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c[12672,12685] [2022-07-13 17:58:56,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:58:56,910 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:58:56,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56 WrapperNode [2022-07-13 17:58:56,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:58:56,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:58:56,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:58:56,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:58:56,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,960 INFO L137 Inliner]: procedures = 59, calls = 162, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 279 [2022-07-13 17:58:56,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:58:56,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:58:56,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:58:56,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:58:56,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:56,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:58:56,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:58:56,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:58:56,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:58:56,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (1/1) ... [2022-07-13 17:58:57,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:58:57,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:58:57,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 17:58:57,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 17:58:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:58:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-13 17:58:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-13 17:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-13 17:58:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-13 17:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 17:58:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 17:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 17:58:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 17:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-13 17:58:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-13 17:58:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-13 17:58:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-13 17:58:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-13 17:58:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-13 17:58:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-13 17:58:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-13 17:58:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-13 17:58:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-13 17:58:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:58:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-13 17:58:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-13 17:58:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:58:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:58:57,128 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:58:57,129 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:58:57,382 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:58:57,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:58:57,393 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 17:58:57,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:58:57 BoogieIcfgContainer [2022-07-13 17:58:57,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:58:57,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:58:57,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:58:57,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:58:57,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:58:56" (1/3) ... [2022-07-13 17:58:57,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c6b1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:58:57, skipping insertion in model container [2022-07-13 17:58:57,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:58:56" (2/3) ... [2022-07-13 17:58:57,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c6b1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:58:57, skipping insertion in model container [2022-07-13 17:58:57,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:58:57" (3/3) ... [2022-07-13 17:58:57,402 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2022-07-13 17:58:57,411 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:58:57,412 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:58:57,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:58:57,463 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6485d301, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1cbaf170 [2022-07-13 17:58:57,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:58:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 91 states have internal predecessors, (111), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-07-13 17:58:57,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 17:58:57,484 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:57,484 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:58:57,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:57,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:57,491 INFO L85 PathProgramCache]: Analyzing trace with hash -561821178, now seen corresponding path program 1 times [2022-07-13 17:58:57,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:57,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648774634] [2022-07-13 17:58:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:57,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-13 17:58:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:57,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:58:57,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:57,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648774634] [2022-07-13 17:58:57,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648774634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:57,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:57,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:58:57,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984857620] [2022-07-13 17:58:57,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:57,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:58:57,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:57,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:58:57,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 17:58:57,737 INFO L87 Difference]: Start difference. First operand has 111 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 91 states have internal predecessors, (111), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:58:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:58:57,781 INFO L93 Difference]: Finished difference Result 213 states and 288 transitions. [2022-07-13 17:58:57,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:58:57,783 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-13 17:58:57,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:58:57,793 INFO L225 Difference]: With dead ends: 213 [2022-07-13 17:58:57,793 INFO L226 Difference]: Without dead ends: 102 [2022-07-13 17:58:57,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 17:58:57,803 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:58:57,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:58:57,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-07-13 17:58:57,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-07-13 17:58:57,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 83 states have internal predecessors, (97), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-07-13 17:58:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2022-07-13 17:58:57,855 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 25 [2022-07-13 17:58:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:58:57,856 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2022-07-13 17:58:57,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:58:57,857 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2022-07-13 17:58:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-13 17:58:57,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:57,861 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:58:57,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:58:57,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:57,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1983272792, now seen corresponding path program 1 times [2022-07-13 17:58:57,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:57,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027215210] [2022-07-13 17:58:57,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:57,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 17:58:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:57,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:58:57,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:57,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027215210] [2022-07-13 17:58:57,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027215210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:57,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:57,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 17:58:57,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797226983] [2022-07-13 17:58:57,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:57,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:58:57,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:57,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:58:57,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:58:57,943 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:58:57,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:58:57,956 INFO L93 Difference]: Finished difference Result 168 states and 218 transitions. [2022-07-13 17:58:57,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:58:57,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-13 17:58:57,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:58:57,958 INFO L225 Difference]: With dead ends: 168 [2022-07-13 17:58:57,958 INFO L226 Difference]: Without dead ends: 93 [2022-07-13 17:58:57,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:58:57,960 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 13 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:58:57,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 221 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:58:57,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-13 17:58:57,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-13 17:58:57,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 77 states have internal predecessors, (90), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-13 17:58:57,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 120 transitions. [2022-07-13 17:58:57,969 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 120 transitions. Word has length 26 [2022-07-13 17:58:57,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:58:57,969 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 120 transitions. [2022-07-13 17:58:57,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:58:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 120 transitions. [2022-07-13 17:58:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-13 17:58:57,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:57,970 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:58:57,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:58:57,970 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:57,971 INFO L85 PathProgramCache]: Analyzing trace with hash -452039463, now seen corresponding path program 1 times [2022-07-13 17:58:57,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:57,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941136004] [2022-07-13 17:58:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-13 17:58:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:58:58,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:58,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941136004] [2022-07-13 17:58:58,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941136004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:58,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:58,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:58:58,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28778824] [2022-07-13 17:58:58,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:58,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:58:58,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:58,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:58:58,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:58:58,063 INFO L87 Difference]: Start difference. First operand 93 states and 120 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:58:58,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:58:58,134 INFO L93 Difference]: Finished difference Result 178 states and 233 transitions. [2022-07-13 17:58:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:58:58,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-13 17:58:58,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:58:58,136 INFO L225 Difference]: With dead ends: 178 [2022-07-13 17:58:58,137 INFO L226 Difference]: Without dead ends: 93 [2022-07-13 17:58:58,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:58:58,140 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 147 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:58:58,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 305 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:58:58,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-13 17:58:58,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-13 17:58:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 77 states have internal predecessors, (89), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-13 17:58:58,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 119 transitions. [2022-07-13 17:58:58,151 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 119 transitions. Word has length 31 [2022-07-13 17:58:58,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:58:58,152 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 119 transitions. [2022-07-13 17:58:58,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:58:58,152 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 119 transitions. [2022-07-13 17:58:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-13 17:58:58,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:58,158 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:58:58,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:58:58,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:58,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1529000788, now seen corresponding path program 1 times [2022-07-13 17:58:58,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:58,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447683930] [2022-07-13 17:58:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:58,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-13 17:58:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:58:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:58:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:58:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:58:58,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:58,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447683930] [2022-07-13 17:58:58,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447683930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:58,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:58,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:58:58,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085282079] [2022-07-13 17:58:58,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:58,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:58:58,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:58,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:58:58,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:58:58,243 INFO L87 Difference]: Start difference. First operand 93 states and 119 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-13 17:58:58,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:58:58,417 INFO L93 Difference]: Finished difference Result 267 states and 341 transitions. [2022-07-13 17:58:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:58:58,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2022-07-13 17:58:58,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:58:58,418 INFO L225 Difference]: With dead ends: 267 [2022-07-13 17:58:58,419 INFO L226 Difference]: Without dead ends: 182 [2022-07-13 17:58:58,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:58:58,420 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 210 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:58:58,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 339 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:58:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-07-13 17:58:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 176. [2022-07-13 17:58:58,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 139 states have internal predecessors, (163), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-13 17:58:58,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2022-07-13 17:58:58,442 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 46 [2022-07-13 17:58:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:58:58,443 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2022-07-13 17:58:58,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-13 17:58:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2022-07-13 17:58:58,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-13 17:58:58,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:58,443 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:58:58,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:58:58,444 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:58,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:58,444 INFO L85 PathProgramCache]: Analyzing trace with hash -821652620, now seen corresponding path program 1 times [2022-07-13 17:58:58,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:58,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634923469] [2022-07-13 17:58:58,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:58,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-13 17:58:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:58:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:58:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 17:58:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:58:58,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:58,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634923469] [2022-07-13 17:58:58,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634923469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:58,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:58,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:58:58,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880147932] [2022-07-13 17:58:58,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:58,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:58:58,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:58,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:58:58,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:58:58,564 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 17:58:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:58:58,745 INFO L93 Difference]: Finished difference Result 356 states and 434 transitions. [2022-07-13 17:58:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 17:58:58,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2022-07-13 17:58:58,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:58:58,747 INFO L225 Difference]: With dead ends: 356 [2022-07-13 17:58:58,747 INFO L226 Difference]: Without dead ends: 188 [2022-07-13 17:58:58,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:58:58,748 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 146 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:58:58,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 447 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:58:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-07-13 17:58:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 174. [2022-07-13 17:58:58,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.2265625) internal successors, (157), 137 states have internal predecessors, (157), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-13 17:58:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 208 transitions. [2022-07-13 17:58:58,758 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 208 transitions. Word has length 52 [2022-07-13 17:58:58,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:58:58,758 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 208 transitions. [2022-07-13 17:58:58,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 17:58:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 208 transitions. [2022-07-13 17:58:58,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-13 17:58:58,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:58,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:58:58,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:58:58,759 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:58,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1197221374, now seen corresponding path program 1 times [2022-07-13 17:58:58,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:58,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542412971] [2022-07-13 17:58:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:58,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-13 17:58:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:58:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:58:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:58:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:58:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:58,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:58:58,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:58,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542412971] [2022-07-13 17:58:58,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542412971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:58,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:58,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:58:58,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108080981] [2022-07-13 17:58:58,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:58,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:58:58,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:58,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:58:58,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:58:58,829 INFO L87 Difference]: Start difference. First operand 174 states and 208 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 17:58:58,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:58:58,960 INFO L93 Difference]: Finished difference Result 350 states and 427 transitions. [2022-07-13 17:58:58,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:58:58,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2022-07-13 17:58:58,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:58:58,965 INFO L225 Difference]: With dead ends: 350 [2022-07-13 17:58:58,965 INFO L226 Difference]: Without dead ends: 184 [2022-07-13 17:58:58,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:58:58,968 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 78 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:58:58,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 430 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:58:58,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-07-13 17:58:58,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 177. [2022-07-13 17:58:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.2213740458015268) internal successors, (160), 140 states have internal predecessors, (160), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-13 17:58:58,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 211 transitions. [2022-07-13 17:58:58,992 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 211 transitions. Word has length 62 [2022-07-13 17:58:58,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:58:58,993 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 211 transitions. [2022-07-13 17:58:58,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 17:58:58,993 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 211 transitions. [2022-07-13 17:58:58,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-13 17:58:58,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:58,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:58:58,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 17:58:58,994 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:58,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:58,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1124834816, now seen corresponding path program 1 times [2022-07-13 17:58:58,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:58,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166945379] [2022-07-13 17:58:58,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:58,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-13 17:58:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:58:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:58:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:58:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:58:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:58:59,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:59,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166945379] [2022-07-13 17:58:59,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166945379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:59,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:59,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:58:59,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599074027] [2022-07-13 17:58:59,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:59,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:58:59,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:59,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:58:59,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:58:59,065 INFO L87 Difference]: Start difference. First operand 177 states and 211 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 17:58:59,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:58:59,201 INFO L93 Difference]: Finished difference Result 356 states and 433 transitions. [2022-07-13 17:58:59,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:58:59,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2022-07-13 17:58:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:58:59,202 INFO L225 Difference]: With dead ends: 356 [2022-07-13 17:58:59,203 INFO L226 Difference]: Without dead ends: 187 [2022-07-13 17:58:59,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:58:59,204 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 115 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:58:59,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 478 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:58:59,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-07-13 17:58:59,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 179. [2022-07-13 17:58:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 133 states have (on average 1.218045112781955) internal successors, (162), 142 states have internal predecessors, (162), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-13 17:58:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 213 transitions. [2022-07-13 17:58:59,211 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 213 transitions. Word has length 62 [2022-07-13 17:58:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:58:59,212 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 213 transitions. [2022-07-13 17:58:59,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 17:58:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 213 transitions. [2022-07-13 17:58:59,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-13 17:58:59,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:59,213 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:58:59,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 17:58:59,213 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:59,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:59,214 INFO L85 PathProgramCache]: Analyzing trace with hash 280829314, now seen corresponding path program 1 times [2022-07-13 17:58:59,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:59,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685308795] [2022-07-13 17:58:59,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:59,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-13 17:58:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:58:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:58:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:58:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:58:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:58:59,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:59,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685308795] [2022-07-13 17:58:59,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685308795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:59,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:59,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:58:59,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920995227] [2022-07-13 17:58:59,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:59,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:58:59,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:59,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:58:59,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:58:59,284 INFO L87 Difference]: Start difference. First operand 179 states and 213 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-13 17:58:59,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:58:59,431 INFO L93 Difference]: Finished difference Result 477 states and 597 transitions. [2022-07-13 17:58:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:58:59,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 62 [2022-07-13 17:58:59,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:58:59,435 INFO L225 Difference]: With dead ends: 477 [2022-07-13 17:58:59,435 INFO L226 Difference]: Without dead ends: 306 [2022-07-13 17:58:59,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:58:59,437 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 222 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:58:59,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 358 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:58:59,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-07-13 17:58:59,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 304. [2022-07-13 17:58:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 226 states have (on average 1.2079646017699115) internal successors, (273), 239 states have internal predecessors, (273), 39 states have call successors, (39), 35 states have call predecessors, (39), 38 states have return successors, (58), 40 states have call predecessors, (58), 39 states have call successors, (58) [2022-07-13 17:58:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 370 transitions. [2022-07-13 17:58:59,456 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 370 transitions. Word has length 62 [2022-07-13 17:58:59,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:58:59,457 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 370 transitions. [2022-07-13 17:58:59,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-13 17:58:59,458 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 370 transitions. [2022-07-13 17:58:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-13 17:58:59,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:58:59,460 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:58:59,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 17:58:59,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:58:59,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:58:59,461 INFO L85 PathProgramCache]: Analyzing trace with hash 135373532, now seen corresponding path program 1 times [2022-07-13 17:58:59,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:58:59,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587254818] [2022-07-13 17:58:59,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:58:59,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:58:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:58:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:58:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:58:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:58:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:58:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:58:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:58:59,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:58:59,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:58:59,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587254818] [2022-07-13 17:58:59,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587254818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:58:59,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:58:59,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 17:58:59,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187601199] [2022-07-13 17:58:59,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:58:59,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:58:59,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:58:59,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:58:59,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:58:59,604 INFO L87 Difference]: Start difference. First operand 304 states and 370 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-13 17:59:00,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:00,262 INFO L93 Difference]: Finished difference Result 936 states and 1182 transitions. [2022-07-13 17:59:00,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-13 17:59:00,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2022-07-13 17:59:00,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:00,265 INFO L225 Difference]: With dead ends: 936 [2022-07-13 17:59:00,266 INFO L226 Difference]: Without dead ends: 640 [2022-07-13 17:59:00,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2022-07-13 17:59:00,267 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 460 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:00,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 535 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:59:00,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-07-13 17:59:00,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 615. [2022-07-13 17:59:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 450 states have (on average 1.18) internal successors, (531), 480 states have internal predecessors, (531), 86 states have call successors, (86), 68 states have call predecessors, (86), 78 states have return successors, (135), 86 states have call predecessors, (135), 86 states have call successors, (135) [2022-07-13 17:59:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 752 transitions. [2022-07-13 17:59:00,291 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 752 transitions. Word has length 66 [2022-07-13 17:59:00,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:00,291 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 752 transitions. [2022-07-13 17:59:00,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-13 17:59:00,291 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 752 transitions. [2022-07-13 17:59:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-13 17:59:00,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:00,293 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:59:00,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 17:59:00,293 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:00,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:00,293 INFO L85 PathProgramCache]: Analyzing trace with hash -165520112, now seen corresponding path program 1 times [2022-07-13 17:59:00,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:00,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320923338] [2022-07-13 17:59:00,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:00,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:59:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-13 17:59:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:59:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:59:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:59:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:59:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 17:59:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 17:59:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:59:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:59:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:59:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:59:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:59:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 17:59:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 17:59:00,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:00,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320923338] [2022-07-13 17:59:00,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320923338] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:59:00,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589494112] [2022-07-13 17:59:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:00,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:59:00,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:59:00,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:59:00,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 17:59:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:00,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 17:59:00,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:59:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 17:59:00,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:59:00,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589494112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:00,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:59:00,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 20 [2022-07-13 17:59:00,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099690966] [2022-07-13 17:59:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:00,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:59:00,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:00,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:59:00,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-07-13 17:59:00,686 INFO L87 Difference]: Start difference. First operand 615 states and 752 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:59:00,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:00,817 INFO L93 Difference]: Finished difference Result 1328 states and 1622 transitions. [2022-07-13 17:59:00,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:59:00,817 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 125 [2022-07-13 17:59:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:00,819 INFO L225 Difference]: With dead ends: 1328 [2022-07-13 17:59:00,820 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 17:59:00,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-07-13 17:59:00,823 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 76 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:00,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1120 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:59:00,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 17:59:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 17:59:00,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 17:59:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 17:59:00,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 125 [2022-07-13 17:59:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:00,825 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 17:59:00,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:59:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 17:59:00,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 17:59:00,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 17:59:00,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 17:59:01,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-13 17:59:01,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 17:59:03,283 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 922 929) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-07-13 17:59:03,284 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 922 929) no Hoare annotation was computed. [2022-07-13 17:59:03,284 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 922 929) no Hoare annotation was computed. [2022-07-13 17:59:03,284 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 812 818) no Hoare annotation was computed. [2022-07-13 17:59:03,284 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 812 818) the Hoare annotation is: true [2022-07-13 17:59:03,284 INFO L895 garLoopResultBuilder]: At program point L865(line 865) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or (not .cse0) .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2022-07-13 17:59:03,284 INFO L899 garLoopResultBuilder]: For program point L865-1(lines 846 870) no Hoare annotation was computed. [2022-07-13 17:59:03,284 INFO L895 garLoopResultBuilder]: At program point L1020(lines 1005 1023) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-13 17:59:03,284 INFO L899 garLoopResultBuilder]: For program point L1014(lines 1014 1018) no Hoare annotation was computed. [2022-07-13 17:59:03,285 INFO L899 garLoopResultBuilder]: For program point L1014-2(lines 1014 1018) no Hoare annotation was computed. [2022-07-13 17:59:03,285 INFO L895 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-13 17:59:03,285 INFO L895 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-13 17:59:03,285 INFO L899 garLoopResultBuilder]: For program point L854(lines 854 862) no Hoare annotation was computed. [2022-07-13 17:59:03,285 INFO L899 garLoopResultBuilder]: For program point L850(lines 850 867) no Hoare annotation was computed. [2022-07-13 17:59:03,285 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 846 870) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-07-13 17:59:03,285 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 846 870) no Hoare annotation was computed. [2022-07-13 17:59:03,286 INFO L895 garLoopResultBuilder]: At program point L675(lines 670 678) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-13 17:59:03,286 INFO L899 garLoopResultBuilder]: For program point L607-1(lines 603 614) no Hoare annotation was computed. [2022-07-13 17:59:03,286 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 603 614) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0) (or (<= 1 ~methaneLevelCritical~0) (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~methaneLevelCritical~0)|)) .cse0))) [2022-07-13 17:59:03,286 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 603 614) no Hoare annotation was computed. [2022-07-13 17:59:03,286 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 615 623) the Hoare annotation is: true [2022-07-13 17:59:03,286 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 615 623) no Hoare annotation was computed. [2022-07-13 17:59:03,286 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 615 623) no Hoare annotation was computed. [2022-07-13 17:59:03,286 INFO L899 garLoopResultBuilder]: For program point L799-1(lines 799 805) no Hoare annotation was computed. [2022-07-13 17:59:03,287 INFO L895 garLoopResultBuilder]: At program point L886(line 886) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0))) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-07-13 17:59:03,287 INFO L895 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-07-13 17:59:03,287 INFO L895 garLoopResultBuilder]: At program point L527(lines 522 529) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-07-13 17:59:03,287 INFO L895 garLoopResultBuilder]: At program point L878(line 878) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-13 17:59:03,287 INFO L899 garLoopResultBuilder]: For program point L878-1(line 878) no Hoare annotation was computed. [2022-07-13 17:59:03,287 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 788 811) no Hoare annotation was computed. [2022-07-13 17:59:03,288 INFO L895 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (and .cse2 .cse1 .cse3) .cse4) (or (and .cse1 .cse3) (and .cse2 .cse0) (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse3) .cse4))) [2022-07-13 17:59:03,288 INFO L899 garLoopResultBuilder]: For program point L548-1(line 548) no Hoare annotation was computed. [2022-07-13 17:59:03,288 INFO L895 garLoopResultBuilder]: At program point L891(line 891) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-13 17:59:03,288 INFO L895 garLoopResultBuilder]: At program point L891-1(lines 872 896) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (and .cse2 .cse1 .cse3) .cse4) (or (and .cse1 .cse3) (and .cse2 .cse0) (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse3) .cse4))) [2022-07-13 17:59:03,288 INFO L899 garLoopResultBuilder]: For program point L792-1(lines 791 810) no Hoare annotation was computed. [2022-07-13 17:59:03,288 INFO L895 garLoopResultBuilder]: At program point L946(lines 941 949) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |timeShift_isPumpRunning_#res#1| 0))) (or (not (<= 1 ~methaneLevelCritical~0)) (and (not (= |old(~pumpRunning~0)| 0)) .cse0 (<= 1 |timeShift_processEnvironment_~tmp~8#1|) .cse1) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2)) (or (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-07-13 17:59:03,289 INFO L899 garLoopResultBuilder]: For program point L880(lines 880 888) no Hoare annotation was computed. [2022-07-13 17:59:03,289 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 893) no Hoare annotation was computed. [2022-07-13 17:59:03,289 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 564) no Hoare annotation was computed. [2022-07-13 17:59:03,289 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 587) no Hoare annotation was computed. [2022-07-13 17:59:03,289 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 567) no Hoare annotation was computed. [2022-07-13 17:59:03,289 INFO L895 garLoopResultBuilder]: At program point L583-2(lines 579 590) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-13 17:59:03,289 INFO L895 garLoopResultBuilder]: At program point L550-1(lines 542 570) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (and .cse2 .cse1 .cse3) .cse4) (let ((.cse5 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0))) (or (and .cse2 .cse1 .cse5 .cse3) (not (= ~methaneLevelCritical~0 0)) (and .cse0 .cse1 .cse5) (and (<= 2 ~waterLevel~0) .cse5 .cse3) (and .cse2 .cse0 .cse5) .cse4)))) [2022-07-13 17:59:03,289 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 788 811) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-13 17:59:03,290 INFO L899 garLoopResultBuilder]: For program point L526(line 526) no Hoare annotation was computed. [2022-07-13 17:59:03,290 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 561) no Hoare annotation was computed. [2022-07-13 17:59:03,290 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 788 811) no Hoare annotation was computed. [2022-07-13 17:59:03,290 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 526) no Hoare annotation was computed. [2022-07-13 17:59:03,290 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2022-07-13 17:59:03,290 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2022-07-13 17:59:03,290 INFO L902 garLoopResultBuilder]: At program point L443(lines 418 447) the Hoare annotation is: true [2022-07-13 17:59:03,290 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2022-07-13 17:59:03,291 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-07-13 17:59:03,291 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2022-07-13 17:59:03,291 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-07-13 17:59:03,291 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2022-07-13 17:59:03,291 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2022-07-13 17:59:03,291 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2022-07-13 17:59:03,291 INFO L895 garLoopResultBuilder]: At program point L539(lines 534 541) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~3#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-13 17:59:03,292 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 752) no Hoare annotation was computed. [2022-07-13 17:59:03,292 INFO L899 garLoopResultBuilder]: For program point L746-1(lines 746 752) no Hoare annotation was computed. [2022-07-13 17:59:03,292 INFO L895 garLoopResultBuilder]: At program point L771(lines 726 773) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-13 17:59:03,292 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-13 17:59:03,292 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 17:59:03,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 17:59:03,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 17:59:03,292 INFO L895 garLoopResultBuilder]: At program point L710(lines 705 713) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-13 17:59:03,293 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 17:59:03,293 INFO L895 garLoopResultBuilder]: At program point L479(lines 475 481) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~3#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-13 17:59:03,293 INFO L895 garLoopResultBuilder]: At program point L702(lines 698 704) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-13 17:59:03,293 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 515) no Hoare annotation was computed. [2022-07-13 17:59:03,293 INFO L899 garLoopResultBuilder]: For program point L764(lines 764 768) no Hoare annotation was computed. [2022-07-13 17:59:03,293 INFO L895 garLoopResultBuilder]: At program point L764-2(lines 756 769) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-13 17:59:03,293 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 508 515) no Hoare annotation was computed. [2022-07-13 17:59:03,293 INFO L899 garLoopResultBuilder]: For program point L727(lines 726 773) no Hoare annotation was computed. [2022-07-13 17:59:03,293 INFO L899 garLoopResultBuilder]: For program point L756(lines 756 769) no Hoare annotation was computed. [2022-07-13 17:59:03,294 INFO L895 garLoopResultBuilder]: At program point L748(line 748) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-13 17:59:03,294 INFO L902 garLoopResultBuilder]: At program point L492(lines 484 494) the Hoare annotation is: true [2022-07-13 17:59:03,294 INFO L902 garLoopResultBuilder]: At program point L777(lines 716 781) the Hoare annotation is: true [2022-07-13 17:59:03,294 INFO L895 garLoopResultBuilder]: At program point L1029(lines 1024 1031) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-13 17:59:03,294 INFO L902 garLoopResultBuilder]: At program point L517(lines 498 520) the Hoare annotation is: true [2022-07-13 17:59:03,294 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2022-07-13 17:59:03,294 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2022-07-13 17:59:03,294 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 732) no Hoare annotation was computed. [2022-07-13 17:59:03,295 INFO L895 garLoopResultBuilder]: At program point L695(lines 691 697) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-13 17:59:03,295 INFO L895 garLoopResultBuilder]: At program point L774(lines 725 775) the Hoare annotation is: false [2022-07-13 17:59:03,295 INFO L899 garLoopResultBuilder]: For program point L995-2(lines 995 999) no Hoare annotation was computed. [2022-07-13 17:59:03,295 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 820 844) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-07-13 17:59:03,295 INFO L899 garLoopResultBuilder]: For program point L828(lines 828 836) no Hoare annotation was computed. [2022-07-13 17:59:03,295 INFO L895 garLoopResultBuilder]: At program point L665(lines 656 669) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse1 (and .cse5 (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse5))) (and (or (not .cse0) (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2) (or .cse4 .cse1 .cse2 .cse3)))) [2022-07-13 17:59:03,295 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 841) no Hoare annotation was computed. [2022-07-13 17:59:03,295 INFO L895 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-13 17:59:03,296 INFO L899 garLoopResultBuilder]: For program point L839-1(lines 820 844) no Hoare annotation was computed. [2022-07-13 17:59:03,296 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 820 844) no Hoare annotation was computed. [2022-07-13 17:59:03,296 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 666) no Hoare annotation was computed. [2022-07-13 17:59:03,296 INFO L899 garLoopResultBuilder]: For program point L912(lines 912 918) no Hoare annotation was computed. [2022-07-13 17:59:03,296 INFO L895 garLoopResultBuilder]: At program point L910(line 910) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-07-13 17:59:03,296 INFO L895 garLoopResultBuilder]: At program point L912-2(lines 905 921) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (not .cse0) (not (<= 1 ~methaneLevelCritical~0)) (and (= ~pumpRunning~0 0) .cse1 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~9#1|)) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse3 .cse2))) [2022-07-13 17:59:03,296 INFO L899 garLoopResultBuilder]: For program point L910-1(line 910) no Hoare annotation was computed. [2022-07-13 17:59:03,296 INFO L895 garLoopResultBuilder]: At program point L1001(lines 986 1004) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (let ((.cse0 (and .cse3 .cse4 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (not .cse2))) (.cse1 (and .cse3 .cse4 (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2)))) [2022-07-13 17:59:03,297 INFO L895 garLoopResultBuilder]: At program point L902(lines 897 904) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not .cse0) (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse2 .cse1) (or (<= 2 ~waterLevel~0) .cse2 .cse1))) [2022-07-13 17:59:03,297 INFO L899 garLoopResultBuilder]: For program point L995(lines 995 999) no Hoare annotation was computed. [2022-07-13 17:59:03,297 INFO L895 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-07-13 17:59:03,297 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 591 602) no Hoare annotation was computed. [2022-07-13 17:59:03,297 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 591 602) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= ~pumpRunning~0 0)) (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-13 17:59:03,297 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 591 602) no Hoare annotation was computed. [2022-07-13 17:59:03,297 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 930 940) the Hoare annotation is: true [2022-07-13 17:59:03,297 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 930 940) no Hoare annotation was computed. [2022-07-13 17:59:03,298 INFO L902 garLoopResultBuilder]: At program point L935(line 935) the Hoare annotation is: true [2022-07-13 17:59:03,298 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 930 940) no Hoare annotation was computed. [2022-07-13 17:59:03,298 INFO L899 garLoopResultBuilder]: For program point L935-1(line 935) no Hoare annotation was computed. [2022-07-13 17:59:03,303 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:59:03,304 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 17:59:03,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 05:59:03 BoogieIcfgContainer [2022-07-13 17:59:03,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 17:59:03,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 17:59:03,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 17:59:03,323 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 17:59:03,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:58:57" (3/4) ... [2022-07-13 17:59:03,325 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 17:59:03,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-13 17:59:03,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-13 17:59:03,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-13 17:59:03,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-13 17:59:03,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-13 17:59:03,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-13 17:59:03,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-13 17:59:03,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-13 17:59:03,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-07-13 17:59:03,330 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-07-13 17:59:03,336 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2022-07-13 17:59:03,336 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-13 17:59:03,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 17:59:03,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 17:59:03,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 17:59:03,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:59:03,342 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:59:03,361 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-13 17:59:03,361 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-13 17:59:03,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-13 17:59:03,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && 1 <= methaneLevelCritical) && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((methaneLevelCritical == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) [2022-07-13 17:59:03,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(1 <= methaneLevelCritical) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || 0 == systemActive) [2022-07-13 17:59:03,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= methaneLevelCritical) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || 0 == systemActive) [2022-07-13 17:59:03,363 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= methaneLevelCritical && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((methaneLevelCritical == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) [2022-07-13 17:59:03,363 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= methaneLevelCritical) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel) || !(methaneLevelCritical == 0)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 0)) || ((2 <= waterLevel && tmp == 0) && \old(waterLevel) == waterLevel)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || 0 == systemActive) [2022-07-13 17:59:03,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= methaneLevelCritical) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) && \result == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && (!(methaneLevelCritical == 0) || 0 == systemActive) [2022-07-13 17:59:03,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-07-13 17:59:03,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-07-13 17:59:03,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-07-13 17:59:03,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || (1 <= \result && pumpRunning == 0)) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(methaneLevelCritical == 0) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || (1 <= \result && pumpRunning == 0)) [2022-07-13 17:59:03,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-07-13 17:59:03,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive))) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) [2022-07-13 17:59:03,385 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 17:59:03,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 17:59:03,385 INFO L158 Benchmark]: Toolchain (without parser) took 6811.02ms. Allocated memory was 81.8MB in the beginning and 159.4MB in the end (delta: 77.6MB). Free memory was 47.4MB in the beginning and 65.6MB in the end (delta: -18.2MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2022-07-13 17:59:03,385 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 61.7MB in the beginning and 61.6MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:59:03,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.99ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 47.2MB in the beginning and 63.7MB in the end (delta: -16.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 17:59:03,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.45ms. Allocated memory is still 98.6MB. Free memory was 63.7MB in the beginning and 61.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 17:59:03,386 INFO L158 Benchmark]: Boogie Preprocessor took 19.87ms. Allocated memory is still 98.6MB. Free memory was 61.0MB in the beginning and 59.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:59:03,386 INFO L158 Benchmark]: RCFGBuilder took 413.85ms. Allocated memory is still 98.6MB. Free memory was 59.5MB in the beginning and 69.9MB in the end (delta: -10.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-07-13 17:59:03,386 INFO L158 Benchmark]: TraceAbstraction took 5925.32ms. Allocated memory was 98.6MB in the beginning and 159.4MB in the end (delta: 60.8MB). Free memory was 69.3MB in the beginning and 71.9MB in the end (delta: -2.5MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. [2022-07-13 17:59:03,386 INFO L158 Benchmark]: Witness Printer took 62.69ms. Allocated memory is still 159.4MB. Free memory was 71.9MB in the beginning and 65.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 17:59:03,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 61.7MB in the beginning and 61.6MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.99ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 47.2MB in the beginning and 63.7MB in the end (delta: -16.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.45ms. Allocated memory is still 98.6MB. Free memory was 63.7MB in the beginning and 61.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.87ms. Allocated memory is still 98.6MB. Free memory was 61.0MB in the beginning and 59.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.85ms. Allocated memory is still 98.6MB. Free memory was 59.5MB in the beginning and 69.9MB in the end (delta: -10.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5925.32ms. Allocated memory was 98.6MB in the beginning and 159.4MB in the end (delta: 60.8MB). Free memory was 69.3MB in the beginning and 71.9MB in the end (delta: -2.5MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. * Witness Printer took 62.69ms. Allocated memory is still 159.4MB. Free memory was 71.9MB in the beginning and 65.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 526]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1509 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1467 mSDsluCounter, 4374 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3034 mSDsCounter, 497 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1824 IncrementalHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 497 mSolverCounterUnsat, 1340 mSDtfsCounter, 1824 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 339 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=9, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 62 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 1319 PreInvPairs, 1604 NumberOfFragments, 1409 HoareAnnotationTreeSize, 1319 FomulaSimplifications, 2792 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 51 FomulaSimplificationsInter, 10182 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 682 NumberOfCodeBlocks, 682 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 671 ConstructedInterpolants, 0 QuantifiedInterpolants, 1144 SizeOfPredicates, 3 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 107/110 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 1005]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: (((!(1 <= methaneLevelCritical) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) && \result == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && (!(methaneLevelCritical == 0) || 0 == systemActive) - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 698]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(1 <= methaneLevelCritical) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || 0 == systemActive) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: (((!(1 <= methaneLevelCritical) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || 0 == systemActive) - InvariantResult [Line: 656]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || (1 <= \result && pumpRunning == 0)) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(methaneLevelCritical == 0) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || (1 <= \result && pumpRunning == 0)) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 1024]: Loop Invariant Derived loop invariant: ((((1 <= methaneLevelCritical && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((methaneLevelCritical == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 986]: Loop Invariant Derived loop invariant: (((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive))) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: (!(1 <= methaneLevelCritical) || 0 == systemActive) && (!(methaneLevelCritical == 0) || 0 == systemActive) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && 1 <= methaneLevelCritical) && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((methaneLevelCritical == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 670]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: (((!(1 <= methaneLevelCritical) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel) || !(methaneLevelCritical == 0)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 0)) || ((2 <= waterLevel && tmp == 0) && \old(waterLevel) == waterLevel)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || 0 == systemActive) - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 484]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 475]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-07-13 17:59:03,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE