./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_spec1_product46.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 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:23:10,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:23:10,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:23:10,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:23:10,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:23:10,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:23:10,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:23:10,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:23:10,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:23:10,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:23:10,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:23:10,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:23:10,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:23:10,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:23:10,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:23:10,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:23:10,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:23:10,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:23:10,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:23:10,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:23:10,891 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:23:10,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:23:10,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:23:10,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:23:10,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:23:10,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:23:10,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:23:10,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:23:10,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:23:10,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:23:10,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:23:10,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:23:10,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:23:10,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:23:10,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:23:10,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:23:10,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:23:10,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:23:10,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:23:10,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:23:10,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:23:10,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:23:10,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:23:10,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:23:10,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:23:10,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:23:10,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:23:10,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:23:10,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:23:10,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:23:10,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:23:10,950 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:23:10,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:23:10,951 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:23:10,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:23:10,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:23:10,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:23:10,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:23:10,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:23:10,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:23:10,952 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:23:10,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:23:10,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:23:10,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:23:10,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:23:10,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:23:10,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:23:10,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:10,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:23:10,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:23:10,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:23:10,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:23:10,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:23:10,967 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:23:10,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:23:10,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:23:10,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de [2022-07-19 17:23:11,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:23:11,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:23:11,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:23:11,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:23:11,208 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:23:11,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2022-07-19 17:23:11,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1219d03ec/be563c85ae484bb59e4ca52dd4d45855/FLAGd95cb0334 [2022-07-19 17:23:11,726 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:23:11,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2022-07-19 17:23:11,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1219d03ec/be563c85ae484bb59e4ca52dd4d45855/FLAGd95cb0334 [2022-07-19 17:23:11,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1219d03ec/be563c85ae484bb59e4ca52dd4d45855 [2022-07-19 17:23:11,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:23:11,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:23:11,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:11,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:23:11,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:23:11,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:11" (1/1) ... [2022-07-19 17:23:11,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273515a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:11, skipping insertion in model container [2022-07-19 17:23:11,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:11" (1/1) ... [2022-07-19 17:23:11,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:23:11,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:23:12,085 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_spec1_product46.cil.c[7019,7032] [2022-07-19 17:23:12,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:12,153 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:23:12,190 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_spec1_product46.cil.c[7019,7032] [2022-07-19 17:23:12,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:12,254 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:23:12,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12 WrapperNode [2022-07-19 17:23:12,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:12,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:12,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:23:12,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:23:12,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,313 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 241 [2022-07-19 17:23:12,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:12,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:23:12,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:23:12,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:23:12,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:23:12,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:23:12,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:23:12,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:23:12,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (1/1) ... [2022-07-19 17:23:12,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:12,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:23:12,380 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) [2022-07-19 17:23:12,404 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 [2022-07-19 17:23:12,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:23:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:23:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:23:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-19 17:23:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-19 17:23:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:23:12,422 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:23:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:23:12,422 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:23:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:23:12,422 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:23:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:23:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:23:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-19 17:23:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-19 17:23:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:23:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:23:12,423 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:23:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:23:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:23:12,506 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:23:12,507 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:23:12,788 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:23:12,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:23:12,799 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:23:12,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:12 BoogieIcfgContainer [2022-07-19 17:23:12,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:23:12,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:23:12,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:23:12,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:23:12,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:23:11" (1/3) ... [2022-07-19 17:23:12,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728d5b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:12, skipping insertion in model container [2022-07-19 17:23:12,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:12" (2/3) ... [2022-07-19 17:23:12,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728d5b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:12, skipping insertion in model container [2022-07-19 17:23:12,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:12" (3/3) ... [2022-07-19 17:23:12,808 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2022-07-19 17:23:12,820 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:23:12,821 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:23:12,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:23:12,870 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@33fd3bca, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2fba3f5 [2022-07-19 17:23:12,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:23:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 78 states have internal predecessors, (96), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-19 17:23:12,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-19 17:23:12,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:12,881 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] [2022-07-19 17:23:12,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:12,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:12,886 INFO L85 PathProgramCache]: Analyzing trace with hash 460925055, now seen corresponding path program 1 times [2022-07-19 17:23:12,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:12,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847481398] [2022-07-19 17:23:12,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:12,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:23:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:13,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:13,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847481398] [2022-07-19 17:23:13,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847481398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:13,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:13,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:23:13,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375872554] [2022-07-19 17:23:13,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:13,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:23:13,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:13,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:23:13,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:13,159 INFO L87 Difference]: Start difference. First operand has 94 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 78 states have internal predecessors, (96), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-07-19 17:23:13,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:13,195 INFO L93 Difference]: Finished difference Result 180 states and 243 transitions. [2022-07-19 17:23:13,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:23:13,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2022-07-19 17:23:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:13,206 INFO L225 Difference]: With dead ends: 180 [2022-07-19 17:23:13,206 INFO L226 Difference]: Without dead ends: 85 [2022-07-19 17:23:13,211 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 [2022-07-19 17:23:13,216 INFO L413 NwaCegarLoop]: 118 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, 118 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 [2022-07-19 17:23:13,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:13,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-07-19 17:23:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-07-19 17:23:13,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 70 states have internal predecessors, (82), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-19 17:23:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2022-07-19 17:23:13,274 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 23 [2022-07-19 17:23:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:13,274 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2022-07-19 17:23:13,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-07-19 17:23:13,275 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2022-07-19 17:23:13,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 17:23:13,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:13,277 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] [2022-07-19 17:23:13,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:23:13,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:13,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:13,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1826997256, now seen corresponding path program 1 times [2022-07-19 17:23:13,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:13,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039083295] [2022-07-19 17:23:13,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:13,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:23:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:13,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:13,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039083295] [2022-07-19 17:23:13,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039083295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:13,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:13,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:13,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417717936] [2022-07-19 17:23:13,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:13,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:13,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:13,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:13,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:13,387 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-07-19 17:23:13,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:13,410 INFO L93 Difference]: Finished difference Result 135 states and 173 transitions. [2022-07-19 17:23:13,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:13,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2022-07-19 17:23:13,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:13,412 INFO L225 Difference]: With dead ends: 135 [2022-07-19 17:23:13,412 INFO L226 Difference]: Without dead ends: 76 [2022-07-19 17:23:13,413 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 [2022-07-19 17:23:13,414 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 175 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 [2022-07-19 17:23:13,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:13,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-07-19 17:23:13,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-07-19 17:23:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-19 17:23:13,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2022-07-19 17:23:13,423 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 24 [2022-07-19 17:23:13,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:13,424 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2022-07-19 17:23:13,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-07-19 17:23:13,424 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2022-07-19 17:23:13,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-19 17:23:13,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:13,425 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] [2022-07-19 17:23:13,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:23:13,426 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:13,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:13,427 INFO L85 PathProgramCache]: Analyzing trace with hash 844834205, now seen corresponding path program 1 times [2022-07-19 17:23:13,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:13,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958145387] [2022-07-19 17:23:13,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:13,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:13,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:13,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958145387] [2022-07-19 17:23:13,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958145387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:13,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:13,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:13,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230467450] [2022-07-19 17:23:13,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:13,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:13,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:13,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:13,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:13,477 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-07-19 17:23:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:13,496 INFO L93 Difference]: Finished difference Result 145 states and 188 transitions. [2022-07-19 17:23:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:13,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2022-07-19 17:23:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:13,499 INFO L225 Difference]: With dead ends: 145 [2022-07-19 17:23:13,499 INFO L226 Difference]: Without dead ends: 76 [2022-07-19 17:23:13,499 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 [2022-07-19 17:23:13,501 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:13,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 95 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-07-19 17:23:13,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-07-19 17:23:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 64 states have internal predecessors, (74), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-19 17:23:13,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2022-07-19 17:23:13,512 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 29 [2022-07-19 17:23:13,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:13,513 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2022-07-19 17:23:13,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-07-19 17:23:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2022-07-19 17:23:13,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-19 17:23:13,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:13,514 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] [2022-07-19 17:23:13,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:23:13,515 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:13,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:13,515 INFO L85 PathProgramCache]: Analyzing trace with hash -589702700, now seen corresponding path program 1 times [2022-07-19 17:23:13,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:13,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976294459] [2022-07-19 17:23:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:13,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:23:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:23:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:13,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:13,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976294459] [2022-07-19 17:23:13,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976294459] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:13,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:13,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:23:13,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253564752] [2022-07-19 17:23:13,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:13,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:23:13,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:13,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:23:13,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:23:13,589 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-19 17:23:13,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:13,829 INFO L93 Difference]: Finished difference Result 223 states and 280 transitions. [2022-07-19 17:23:13,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:23:13,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2022-07-19 17:23:13,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:13,831 INFO L225 Difference]: With dead ends: 223 [2022-07-19 17:23:13,831 INFO L226 Difference]: Without dead ends: 154 [2022-07-19 17:23:13,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:23:13,833 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 169 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:13,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 283 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:23:13,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-07-19 17:23:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 148. [2022-07-19 17:23:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 111 states have (on average 1.2432432432432432) internal successors, (138), 119 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2022-07-19 17:23:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 179 transitions. [2022-07-19 17:23:13,866 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 179 transitions. Word has length 39 [2022-07-19 17:23:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:13,866 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 179 transitions. [2022-07-19 17:23:13,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-19 17:23:13,867 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 179 transitions. [2022-07-19 17:23:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-19 17:23:13,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:13,868 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] [2022-07-19 17:23:13,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:23:13,868 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:13,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:13,869 INFO L85 PathProgramCache]: Analyzing trace with hash -504032566, now seen corresponding path program 1 times [2022-07-19 17:23:13,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:13,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108488924] [2022-07-19 17:23:13,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:13,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:23:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:23:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:14,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:14,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108488924] [2022-07-19 17:23:14,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108488924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:14,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:14,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:14,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835534020] [2022-07-19 17:23:14,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:14,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:14,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:14,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:14,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:14,007 INFO L87 Difference]: Start difference. First operand 148 states and 179 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 17:23:14,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:14,256 INFO L93 Difference]: Finished difference Result 431 states and 548 transitions. [2022-07-19 17:23:14,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 17:23:14,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-07-19 17:23:14,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:14,266 INFO L225 Difference]: With dead ends: 431 [2022-07-19 17:23:14,267 INFO L226 Difference]: Without dead ends: 290 [2022-07-19 17:23:14,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:23:14,276 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 198 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:14,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 391 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:23:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-07-19 17:23:14,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 242. [2022-07-19 17:23:14,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 183 states have (on average 1.2459016393442623) internal successors, (228), 194 states have internal predecessors, (228), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2022-07-19 17:23:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 298 transitions. [2022-07-19 17:23:14,324 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 298 transitions. Word has length 45 [2022-07-19 17:23:14,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:14,324 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 298 transitions. [2022-07-19 17:23:14,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 17:23:14,324 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 298 transitions. [2022-07-19 17:23:14,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-19 17:23:14,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:14,330 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] [2022-07-19 17:23:14,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:23:14,331 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:14,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:14,331 INFO L85 PathProgramCache]: Analyzing trace with hash -722887284, now seen corresponding path program 1 times [2022-07-19 17:23:14,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:14,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385139867] [2022-07-19 17:23:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:14,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:23:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:23:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:14,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:14,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385139867] [2022-07-19 17:23:14,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385139867] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:14,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:14,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:14,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988278162] [2022-07-19 17:23:14,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:14,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:14,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:14,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:14,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:14,424 INFO L87 Difference]: Start difference. First operand 242 states and 298 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:23:14,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:14,626 INFO L93 Difference]: Finished difference Result 264 states and 324 transitions. [2022-07-19 17:23:14,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:23:14,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-07-19 17:23:14,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:14,630 INFO L225 Difference]: With dead ends: 264 [2022-07-19 17:23:14,630 INFO L226 Difference]: Without dead ends: 262 [2022-07-19 17:23:14,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:23:14,635 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 124 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:14,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 361 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:23:14,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-07-19 17:23:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 242. [2022-07-19 17:23:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 183 states have (on average 1.2295081967213115) internal successors, (225), 194 states have internal predecessors, (225), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2022-07-19 17:23:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 295 transitions. [2022-07-19 17:23:14,671 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 295 transitions. Word has length 45 [2022-07-19 17:23:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:14,672 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 295 transitions. [2022-07-19 17:23:14,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:23:14,672 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 295 transitions. [2022-07-19 17:23:14,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-19 17:23:14,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:14,673 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] [2022-07-19 17:23:14,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:23:14,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:14,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:14,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1539826399, now seen corresponding path program 1 times [2022-07-19 17:23:14,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:14,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165034272] [2022-07-19 17:23:14,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:14,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:23:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:23:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 17:23:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:23:14,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:14,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165034272] [2022-07-19 17:23:14,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165034272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:14,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:14,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:14,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644523809] [2022-07-19 17:23:14,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:14,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:14,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:14,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:14,768 INFO L87 Difference]: Start difference. First operand 242 states and 295 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:23:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:14,903 INFO L93 Difference]: Finished difference Result 495 states and 616 transitions. [2022-07-19 17:23:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:23:14,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2022-07-19 17:23:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:14,906 INFO L225 Difference]: With dead ends: 495 [2022-07-19 17:23:14,906 INFO L226 Difference]: Without dead ends: 260 [2022-07-19 17:23:14,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:23:14,911 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 64 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:14,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 342 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:23:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-07-19 17:23:14,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 248. [2022-07-19 17:23:14,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 189 states have (on average 1.2222222222222223) internal successors, (231), 200 states have internal predecessors, (231), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2022-07-19 17:23:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 301 transitions. [2022-07-19 17:23:14,936 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 301 transitions. Word has length 55 [2022-07-19 17:23:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:14,937 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 301 transitions. [2022-07-19 17:23:14,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:23:14,938 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 301 transitions. [2022-07-19 17:23:14,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-19 17:23:14,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:14,940 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] [2022-07-19 17:23:14,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:23:14,941 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:14,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:14,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1562458653, now seen corresponding path program 1 times [2022-07-19 17:23:14,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:14,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000348859] [2022-07-19 17:23:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:14,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:14,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:23:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:23:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 17:23:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:23:15,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:15,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000348859] [2022-07-19 17:23:15,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000348859] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:15,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:15,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:15,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914425992] [2022-07-19 17:23:15,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:15,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:15,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:15,019 INFO L87 Difference]: Start difference. First operand 248 states and 301 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:23:15,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:15,140 INFO L93 Difference]: Finished difference Result 446 states and 546 transitions. [2022-07-19 17:23:15,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:15,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2022-07-19 17:23:15,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:15,142 INFO L225 Difference]: With dead ends: 446 [2022-07-19 17:23:15,142 INFO L226 Difference]: Without dead ends: 205 [2022-07-19 17:23:15,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:23:15,144 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 156 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:15,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 242 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:23:15,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-07-19 17:23:15,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 200. [2022-07-19 17:23:15,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 152 states have (on average 1.1973684210526316) internal successors, (182), 161 states have internal predecessors, (182), 24 states have call successors, (24), 21 states have call predecessors, (24), 23 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2022-07-19 17:23:15,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 235 transitions. [2022-07-19 17:23:15,155 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 235 transitions. Word has length 55 [2022-07-19 17:23:15,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:15,155 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 235 transitions. [2022-07-19 17:23:15,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:23:15,156 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 235 transitions. [2022-07-19 17:23:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-19 17:23:15,157 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:15,157 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] [2022-07-19 17:23:15,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:23:15,157 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:15,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:15,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1860054005, now seen corresponding path program 1 times [2022-07-19 17:23:15,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:15,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017366472] [2022-07-19 17:23:15,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:23:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:23:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:23:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:23:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 17:23:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:15,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:23:15,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:15,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017366472] [2022-07-19 17:23:15,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017366472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:15,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:15,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:23:15,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115757755] [2022-07-19 17:23:15,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:15,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:23:15,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:15,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:23:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:23:15,293 INFO L87 Difference]: Start difference. First operand 200 states and 235 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 17:23:15,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:15,945 INFO L93 Difference]: Finished difference Result 639 states and 773 transitions. [2022-07-19 17:23:15,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-19 17:23:15,945 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-07-19 17:23:15,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:15,949 INFO L225 Difference]: With dead ends: 639 [2022-07-19 17:23:15,949 INFO L226 Difference]: Without dead ends: 446 [2022-07-19 17:23:15,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2022-07-19 17:23:15,952 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 381 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:15,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 485 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 17:23:15,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-07-19 17:23:15,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 368. [2022-07-19 17:23:15,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 275 states have (on average 1.1745454545454546) internal successors, (323), 293 states have internal predecessors, (323), 47 states have call successors, (47), 41 states have call predecessors, (47), 45 states have return successors, (62), 46 states have call predecessors, (62), 47 states have call successors, (62) [2022-07-19 17:23:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 432 transitions. [2022-07-19 17:23:15,980 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 432 transitions. Word has length 59 [2022-07-19 17:23:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:15,980 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 432 transitions. [2022-07-19 17:23:15,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 17:23:15,980 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 432 transitions. [2022-07-19 17:23:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-19 17:23:15,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:15,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:15,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:23:15,983 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:15,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:15,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1925782386, now seen corresponding path program 1 times [2022-07-19 17:23:15,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:15,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309965407] [2022-07-19 17:23:15,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:23:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:23:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:23:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:23:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 17:23:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 17:23:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:23:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:23:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:23:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:23:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:23:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,189 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:23:16,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:16,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309965407] [2022-07-19 17:23:16,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309965407] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:23:16,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100225186] [2022-07-19 17:23:16,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:16,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:23:16,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:23:16,192 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) [2022-07-19 17:23:16,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:23:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:16,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 17:23:16,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:23:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-19 17:23:16,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:23:16,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100225186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:16,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:23:16,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2022-07-19 17:23:16,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274490903] [2022-07-19 17:23:16,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:16,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 17:23:16,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:16,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 17:23:16,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-07-19 17:23:16,485 INFO L87 Difference]: Start difference. First operand 368 states and 432 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:23:16,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:16,663 INFO L93 Difference]: Finished difference Result 813 states and 958 transitions. [2022-07-19 17:23:16,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:23:16,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2022-07-19 17:23:16,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:16,664 INFO L225 Difference]: With dead ends: 813 [2022-07-19 17:23:16,664 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:23:16,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-07-19 17:23:16,667 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 70 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:16,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 960 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:23:16,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:23:16,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:23:16,668 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) [2022-07-19 17:23:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:23:16,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2022-07-19 17:23:16,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:16,671 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:23:16,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:23:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:23:16,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:23:16,674 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:23:16,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 17:23:16,899 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 [2022-07-19 17:23:16,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:23:19,097 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 158 164) no Hoare annotation was computed. [2022-07-19 17:23:19,097 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 158 164) the Hoare annotation is: true [2022-07-19 17:23:19,098 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 530 541) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0) (or (<= 1 ~methaneLevelCritical~0) (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2022-07-19 17:23:19,098 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 530 541) no Hoare annotation was computed. [2022-07-19 17:23:19,099 INFO L899 garLoopResultBuilder]: For program point L534-1(lines 530 541) no Hoare annotation was computed. [2022-07-19 17:23:19,099 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 542 550) the Hoare annotation is: true [2022-07-19 17:23:19,099 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 542 550) no Hoare annotation was computed. [2022-07-19 17:23:19,099 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 542 550) no Hoare annotation was computed. [2022-07-19 17:23:19,099 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 335 364) no Hoare annotation was computed. [2022-07-19 17:23:19,099 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 353) no Hoare annotation was computed. [2022-07-19 17:23:19,099 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 335 364) the Hoare annotation is: true [2022-07-19 17:23:19,099 INFO L902 garLoopResultBuilder]: At program point L349-1(lines 349 353) the Hoare annotation is: true [2022-07-19 17:23:19,099 INFO L899 garLoopResultBuilder]: For program point L346(line 346) no Hoare annotation was computed. [2022-07-19 17:23:19,099 INFO L902 garLoopResultBuilder]: At program point L345-2(lines 345 359) the Hoare annotation is: true [2022-07-19 17:23:19,099 INFO L902 garLoopResultBuilder]: At program point L341(line 341) the Hoare annotation is: true [2022-07-19 17:23:19,100 INFO L899 garLoopResultBuilder]: For program point L341-1(line 341) no Hoare annotation was computed. [2022-07-19 17:23:19,106 INFO L902 garLoopResultBuilder]: At program point L360(lines 335 364) the Hoare annotation is: true [2022-07-19 17:23:19,106 INFO L899 garLoopResultBuilder]: For program point L356(line 356) no Hoare annotation was computed. [2022-07-19 17:23:19,107 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 514) no Hoare annotation was computed. [2022-07-19 17:23:19,107 INFO L895 garLoopResultBuilder]: At program point L510-2(lines 506 517) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or .cse1 (and .cse0 .cse3) (not (= ~methaneLevelCritical~0 0))))) [2022-07-19 17:23:19,107 INFO L895 garLoopResultBuilder]: At program point L473(lines 468 475) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-07-19 17:23:19,107 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 134 157) no Hoare annotation was computed. [2022-07-19 17:23:19,107 INFO L895 garLoopResultBuilder]: At program point L247(lines 242 249) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse1) .cse2) (or .cse3 .cse0 .cse2) (or .cse0 (and .cse3 .cse1) (not (= ~methaneLevelCritical~0 0))))) [2022-07-19 17:23:19,108 INFO L895 garLoopResultBuilder]: At program point L206(line 206) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-19 17:23:19,108 INFO L895 garLoopResultBuilder]: At program point L198(line 198) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or .cse1 (and .cse0 .cse3) (not (= ~methaneLevelCritical~0 0))))) [2022-07-19 17:23:19,108 INFO L899 garLoopResultBuilder]: For program point L198-1(line 198) no Hoare annotation was computed. [2022-07-19 17:23:19,109 INFO L895 garLoopResultBuilder]: At program point L483(line 483) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3) (or .cse2 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse0 .cse1) (not (<= 1 ~methaneLevelCritical~0)) (and .cse4 .cse1 .cse5)) (or .cse2 (and .cse4 .cse0) (and .cse0 .cse1) .cse3 .cse5))) [2022-07-19 17:23:19,109 INFO L899 garLoopResultBuilder]: For program point L483-1(line 483) no Hoare annotation was computed. [2022-07-19 17:23:19,109 INFO L895 garLoopResultBuilder]: At program point L211(line 211) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-07-19 17:23:19,109 INFO L895 garLoopResultBuilder]: At program point L211-1(lines 192 216) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3) (or .cse2 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse0 .cse1) (not (<= 1 ~methaneLevelCritical~0)) (and .cse4 .cse1 .cse5)) (or .cse2 (and .cse4 .cse0) (and .cse0 .cse1) .cse3 .cse5))) [2022-07-19 17:23:19,109 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 145 151) no Hoare annotation was computed. [2022-07-19 17:23:19,109 INFO L899 garLoopResultBuilder]: For program point L472(line 472) no Hoare annotation was computed. [2022-07-19 17:23:19,109 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 134 157) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-07-19 17:23:19,109 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 134 157) no Hoare annotation was computed. [2022-07-19 17:23:19,110 INFO L895 garLoopResultBuilder]: At program point L266(lines 261 269) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_isPumpRunning_#res#1| 0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-07-19 17:23:19,110 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 137 156) no Hoare annotation was computed. [2022-07-19 17:23:19,110 INFO L899 garLoopResultBuilder]: For program point L489(lines 489 495) no Hoare annotation was computed. [2022-07-19 17:23:19,110 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2022-07-19 17:23:19,110 INFO L899 garLoopResultBuilder]: For program point L200(lines 200 208) no Hoare annotation was computed. [2022-07-19 17:23:19,110 INFO L899 garLoopResultBuilder]: For program point L485(lines 485 498) no Hoare annotation was computed. [2022-07-19 17:23:19,110 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 213) no Hoare annotation was computed. [2022-07-19 17:23:19,111 INFO L895 garLoopResultBuilder]: At program point L485-1(lines 477 501) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0)) (.cse8 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~6#1| 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (and .cse8 .cse6)) (.cse2 (not .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3) (or .cse2 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse0 .cse1 .cse4) (not (<= 1 ~methaneLevelCritical~0)) (and .cse5 .cse1 .cse6)) (or .cse7 .cse0 .cse2 .cse3) (or (and .cse5 .cse8) .cse7 .cse2 (and .cse0 .cse1 .cse4 .cse8) .cse3)))) [2022-07-19 17:23:19,111 INFO L899 garLoopResultBuilder]: For program point L419-2(lines 419 426) no Hoare annotation was computed. [2022-07-19 17:23:19,111 INFO L895 garLoopResultBuilder]: At program point L448(lines 444 450) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-19 17:23:19,111 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-07-19 17:23:19,111 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2022-07-19 17:23:19,111 INFO L902 garLoopResultBuilder]: At program point L403(lines 396 405) the Hoare annotation is: true [2022-07-19 17:23:19,111 INFO L895 garLoopResultBuilder]: At program point L110(lines 65 112) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-07-19 17:23:19,111 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-07-19 17:23:19,111 INFO L902 garLoopResultBuilder]: At program point L428(lines 409 431) the Hoare annotation is: true [2022-07-19 17:23:19,111 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:23:19,111 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:23:19,112 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:23:19,112 INFO L895 garLoopResultBuilder]: At program point L330(lines 325 332) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-07-19 17:23:19,112 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 107) no Hoare annotation was computed. [2022-07-19 17:23:19,112 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 95 108) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-07-19 17:23:19,112 INFO L899 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2022-07-19 17:23:19,113 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:23:19,115 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2022-07-19 17:23:19,115 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-07-19 17:23:19,115 INFO L902 garLoopResultBuilder]: At program point L116(lines 55 120) the Hoare annotation is: true [2022-07-19 17:23:19,115 INFO L895 garLoopResultBuilder]: At program point L463(lines 458 466) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-19 17:23:19,116 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-07-19 17:23:19,116 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2022-07-19 17:23:19,116 INFO L895 garLoopResultBuilder]: At program point L393(lines 389 395) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-19 17:23:19,116 INFO L895 garLoopResultBuilder]: At program point L455(lines 451 457) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-19 17:23:19,116 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 71) no Hoare annotation was computed. [2022-07-19 17:23:19,116 INFO L895 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2022-07-19 17:23:19,116 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 426) no Hoare annotation was computed. [2022-07-19 17:23:19,117 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 518 529) no Hoare annotation was computed. [2022-07-19 17:23:19,117 INFO L899 garLoopResultBuilder]: For program point L522-1(lines 518 529) no Hoare annotation was computed. [2022-07-19 17:23:19,117 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 518 529) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-07-19 17:23:19,117 INFO L895 garLoopResultBuilder]: At program point L180(line 180) the Hoare annotation is: (let ((.cse7 (= 1 ~systemActive~0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse7 (= |processEnvironment__wrappee__methaneQuery_~tmp~1#1| 0))) (.cse0 (not (= ~waterLevel~0 1))) (.cse2 (not .cse7)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse4 (and (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~4#1|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse3 .cse5) (or .cse2 .cse6 .cse5) (or .cse0 .cse2 .cse6 .cse4)))) [2022-07-19 17:23:19,117 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 182) no Hoare annotation was computed. [2022-07-19 17:23:19,117 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2022-07-19 17:23:19,118 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 187) no Hoare annotation was computed. [2022-07-19 17:23:19,118 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 238) no Hoare annotation was computed. [2022-07-19 17:23:19,118 INFO L895 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse5) (or .cse3 .cse0 .cse1) (or .cse4 .cse0 .cse5 .cse2))) [2022-07-19 17:23:19,118 INFO L895 garLoopResultBuilder]: At program point L232-2(lines 225 241) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not .cse1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse5) (or .cse3 .cse0 .cse2) (or (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~3#1| ~methaneLevelCritical~0)) .cse4 .cse0 .cse5)))) [2022-07-19 17:23:19,118 INFO L899 garLoopResultBuilder]: For program point L230-1(line 230) no Hoare annotation was computed. [2022-07-19 17:23:19,118 INFO L895 garLoopResultBuilder]: At program point L321(lines 306 324) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~waterLevel~0 1))) (.cse1 (and (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~4#1|) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse6) (or .cse5 .cse2 .cse6 .cse4))) [2022-07-19 17:23:19,118 INFO L895 garLoopResultBuilder]: At program point L222(lines 217 224) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse2) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-07-19 17:23:19,119 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 319) no Hoare annotation was computed. [2022-07-19 17:23:19,119 INFO L899 garLoopResultBuilder]: For program point L315-2(lines 315 319) no Hoare annotation was computed. [2022-07-19 17:23:19,119 INFO L895 garLoopResultBuilder]: At program point L185(line 185) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-07-19 17:23:19,119 INFO L899 garLoopResultBuilder]: For program point L185-1(lines 166 190) no Hoare annotation was computed. [2022-07-19 17:23:19,119 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 166 190) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-07-19 17:23:19,119 INFO L895 garLoopResultBuilder]: At program point L592(lines 583 596) the Hoare annotation is: (let ((.cse8 (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|)) (.cse9 (= ~pumpRunning~0 0)) (.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (not .cse1)) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (not (= ~waterLevel~0 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (and .cse8 .cse9)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse6 (and .cse9 (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse4 .cse5 .cse6) (or .cse7 .cse3 .cse8 .cse0 .cse5) (or .cse7 .cse8 .cse0 .cse2) (or .cse0 .cse4 .cse2 .cse6)))) [2022-07-19 17:23:19,119 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 166 190) no Hoare annotation was computed. [2022-07-19 17:23:19,120 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 250 260) the Hoare annotation is: true [2022-07-19 17:23:19,120 INFO L902 garLoopResultBuilder]: At program point L255(line 255) the Hoare annotation is: true [2022-07-19 17:23:19,120 INFO L899 garLoopResultBuilder]: For program point L255-1(line 255) no Hoare annotation was computed. [2022-07-19 17:23:19,120 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 250 260) no Hoare annotation was computed. [2022-07-19 17:23:19,120 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 250 260) no Hoare annotation was computed. [2022-07-19 17:23:19,123 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:19,125 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:23:19,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:23:19 BoogieIcfgContainer [2022-07-19 17:23:19,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:23:19,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:23:19,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:23:19,156 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:23:19,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:12" (3/4) ... [2022-07-19 17:23:19,159 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:23:19,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-19 17:23:19,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:23:19,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-19 17:23:19,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:23:19,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:23:19,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:23:19,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:23:19,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-07-19 17:23:19,190 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-19 17:23:19,190 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:23:19,191 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:23:19,191 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:23:19,192 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:23:19,193 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:23:19,193 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:23:19,212 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || !(methaneLevelCritical == 0)) [2022-07-19 17:23:19,212 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || ((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel))) && ((((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) [2022-07-19 17:23:19,213 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel))) && ((((tmp == 0 && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((((pumpRunning == \old(pumpRunning) && tmp == 0) || (tmp == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == 0)) || !(methaneLevelCritical == 0)) [2022-07-19 17:23:19,213 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || (1 <= tmp && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) [2022-07-19 17:23:19,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && \result == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) [2022-07-19 17:23:19,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(waterLevel == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) [2022-07-19 17:23:19,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(waterLevel == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) [2022-07-19 17:23:19,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && \result == 0))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 1 <= \result) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && (((!(waterLevel == 1) || 1 <= \result) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || (1 <= \result && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && \result == 0)) [2022-07-19 17:23:19,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(waterLevel == 1) || (((tmp___0 == 0 && 1 <= \result) && 1 <= tmp) && \result == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((tmp___0 == 0 && 1 <= \result) && 1 <= tmp) && \result == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) [2022-07-19 17:23:19,242 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:23:19,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:23:19,242 INFO L158 Benchmark]: Toolchain (without parser) took 7451.92ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 96.6MB in the beginning and 46.7MB in the end (delta: 50.0MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2022-07-19 17:23:19,243 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory was 60.5MB in the beginning and 60.4MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:23:19,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.43ms. Allocated memory is still 119.5MB. Free memory was 96.6MB in the beginning and 77.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-19 17:23:19,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.42ms. Allocated memory is still 119.5MB. Free memory was 77.9MB in the beginning and 75.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:19,243 INFO L158 Benchmark]: Boogie Preprocessor took 37.52ms. Allocated memory is still 119.5MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:19,244 INFO L158 Benchmark]: RCFGBuilder took 448.72ms. Allocated memory is still 119.5MB. Free memory was 74.0MB in the beginning and 57.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-19 17:23:19,244 INFO L158 Benchmark]: TraceAbstraction took 6352.09ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 57.0MB in the beginning and 53.0MB in the end (delta: 4.0MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2022-07-19 17:23:19,244 INFO L158 Benchmark]: Witness Printer took 86.39ms. Allocated memory is still 144.7MB. Free memory was 51.9MB in the beginning and 46.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 17:23:19,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory was 60.5MB in the beginning and 60.4MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.43ms. Allocated memory is still 119.5MB. Free memory was 96.6MB in the beginning and 77.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.42ms. Allocated memory is still 119.5MB. Free memory was 77.9MB in the beginning and 75.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.52ms. Allocated memory is still 119.5MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.72ms. Allocated memory is still 119.5MB. Free memory was 74.0MB in the beginning and 57.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6352.09ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 57.0MB in the beginning and 53.0MB in the end (delta: 4.0MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * Witness Printer took 86.39ms. Allocated memory is still 144.7MB. Free memory was 51.9MB in the beginning and 46.7MB in the end (delta: 5.2MB). 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: 472]: 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 9 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1306 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1266 mSDsluCounter, 3452 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2364 mSDsCounter, 409 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1431 IncrementalHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 409 mSolverCounterUnsat, 1088 mSDtfsCounter, 1431 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 295 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=9, InterpolantAutomatonStates: 88, 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, 169 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 859 PreInvPairs, 1003 NumberOfFragments, 1333 HoareAnnotationTreeSize, 859 FomulaSimplifications, 1605 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 43 FomulaSimplificationsInter, 5359 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 590 NumberOfCodeBlocks, 590 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 579 ConstructedInterpolants, 0 QuantifiedInterpolants, 989 SizeOfPredicates, 3 NumberOfNonLiveVariables, 487 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 94/99 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: 389]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && \result == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && \result == 0))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 1 <= \result) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && (((!(waterLevel == 1) || 1 <= \result) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || (1 <= \result && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 396]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: (((((!(waterLevel == 1) || (((tmp___0 == 0 && 1 <= \result) && 1 <= tmp) && \result == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((tmp___0 == 0 && 1 <= \result) && 1 <= tmp) && \result == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) - InvariantResult [Line: 242]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || (1 <= tmp && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || ((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel))) && ((((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 225]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(waterLevel == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 444]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 409]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel))) && ((((tmp == 0 && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((((pumpRunning == \old(pumpRunning) && tmp == 0) || (tmp == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(waterLevel == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 468]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: ((1 <= methaneLevelCritical && 1 == systemActive) && splverifierCounter == 0) || ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) RESULT: Ultimate proved your program to be correct! [2022-07-19 17:23:19,289 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