./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product43.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 b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:59:21,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:59:21,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:59:21,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:59:21,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:59:21,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:59:21,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:59:21,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:59:21,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:59:21,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:59:21,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:59:21,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:59:21,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:59:21,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:59:21,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:59:21,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:59:21,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:59:21,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:59:21,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:59:21,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:59:21,693 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:59:21,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:59:21,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:59:21,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:59:21,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:59:21,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:59:21,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:59:21,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:59:21,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:59:21,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:59:21,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:59:21,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:59:21,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:59:21,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:59:21,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:59:21,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:59:21,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:59:21,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:59:21,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:59:21,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:59:21,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:59:21,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:59:21,708 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:59:21,732 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:59:21,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:59:21,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:59:21,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:59:21,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:59:21,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:59:21,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:59:21,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:59:21,734 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:59:21,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:59:21,735 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:59:21,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:59:21,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:59:21,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:59:21,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:59:21,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:59:21,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:59:21,736 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:59:21,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:59:21,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:59:21,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:59:21,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:59:21,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:59:21,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:59:21,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:59:21,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:59:21,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:59:21,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:59:21,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:59:21,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:59:21,739 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:59:21,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:59:21,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:59:21,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b [2022-07-13 17:59:21,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:59:21,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:59:21,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:59:21,970 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:59:21,971 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:59:21,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2022-07-13 17:59:22,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b4c204d/12a6c5fea2284a22ab4e5b0134bfd22c/FLAG5cc7acb4a [2022-07-13 17:59:22,380 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:59:22,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2022-07-13 17:59:22,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b4c204d/12a6c5fea2284a22ab4e5b0134bfd22c/FLAG5cc7acb4a [2022-07-13 17:59:22,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b4c204d/12a6c5fea2284a22ab4e5b0134bfd22c [2022-07-13 17:59:22,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:59:22,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:59:22,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:59:22,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:59:22,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:59:22,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4693a4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22, skipping insertion in model container [2022-07-13 17:59:22,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:59:22,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:59:22,593 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_spec3_product43.cil.c[2897,2910] [2022-07-13 17:59:22,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:59:22,683 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:59:22,694 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_spec3_product43.cil.c[2897,2910] [2022-07-13 17:59:22,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:59:22,753 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:59:22,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22 WrapperNode [2022-07-13 17:59:22,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:59:22,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:59:22,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:59:22,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:59:22,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,795 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 253 [2022-07-13 17:59:22,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:59:22,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:59:22,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:59:22,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:59:22,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:59:22,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:59:22,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:59:22,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:59:22,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (1/1) ... [2022-07-13 17:59:22,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:59:22,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:59:22,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 17:59:22,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 17:59:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:59:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-13 17:59:22,863 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-13 17:59:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-13 17:59:22,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-13 17:59:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 17:59:22,864 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 17:59:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 17:59:22,864 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 17:59:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-13 17:59:22,864 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-13 17:59:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:59:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-13 17:59:22,865 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-13 17:59:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:59:22,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:59:22,912 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:59:22,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:59:23,131 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:59:23,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:59:23,136 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 17:59:23,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:23 BoogieIcfgContainer [2022-07-13 17:59:23,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:59:23,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:59:23,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:59:23,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:59:23,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:59:22" (1/3) ... [2022-07-13 17:59:23,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fbba17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:59:23, skipping insertion in model container [2022-07-13 17:59:23,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:22" (2/3) ... [2022-07-13 17:59:23,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fbba17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:59:23, skipping insertion in model container [2022-07-13 17:59:23,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:23" (3/3) ... [2022-07-13 17:59:23,147 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2022-07-13 17:59:23,158 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:59:23,158 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:59:23,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:59:23,214 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@7b380a8d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2729ecfa [2022-07-13 17:59:23,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:59:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 73 states have internal predecessors, (93), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-13 17:59:23,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 17:59:23,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:23,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:59:23,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:23,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:23,240 INFO L85 PathProgramCache]: Analyzing trace with hash 35803391, now seen corresponding path program 1 times [2022-07-13 17:59:23,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:23,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794166552] [2022-07-13 17:59:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:23,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:23,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:59:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:23,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:23,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794166552] [2022-07-13 17:59:23,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794166552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:23,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:23,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:59:23,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807473425] [2022-07-13 17:59:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:23,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:59:23,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:23,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:59:23,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 17:59:23,500 INFO L87 Difference]: Start difference. First operand has 85 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 73 states have internal predecessors, (93), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:59:23,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:23,534 INFO L93 Difference]: Finished difference Result 162 states and 221 transitions. [2022-07-13 17:59:23,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:59:23,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-13 17:59:23,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:23,546 INFO L225 Difference]: With dead ends: 162 [2022-07-13 17:59:23,546 INFO L226 Difference]: Without dead ends: 76 [2022-07-13 17:59:23,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 17:59:23,552 INFO L413 NwaCegarLoop]: 107 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, 107 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:23,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:23,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-07-13 17:59:23,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-07-13 17:59:23,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 65 states have internal predecessors, (79), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-13 17:59:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2022-07-13 17:59:23,592 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 25 [2022-07-13 17:59:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:23,593 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2022-07-13 17:59:23,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:59:23,594 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2022-07-13 17:59:23,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-13 17:59:23,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:23,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:59:23,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:59:23,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:23,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 667483741, now seen corresponding path program 1 times [2022-07-13 17:59:23,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:23,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249570965] [2022-07-13 17:59:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:23,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:23,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-13 17:59:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:23,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:23,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249570965] [2022-07-13 17:59:23,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249570965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:23,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:23,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 17:59:23,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841785304] [2022-07-13 17:59:23,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:23,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:59:23,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:59:23,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:23,697 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:59:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:23,722 INFO L93 Difference]: Finished difference Result 114 states and 147 transitions. [2022-07-13 17:59:23,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:59:23,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-13 17:59:23,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:23,725 INFO L225 Difference]: With dead ends: 114 [2022-07-13 17:59:23,726 INFO L226 Difference]: Without dead ends: 67 [2022-07-13 17:59:23,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:23,728 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 17 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:23,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 149 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:23,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-07-13 17:59:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-07-13 17:59:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 59 states have internal predecessors, (72), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 17:59:23,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-07-13 17:59:23,738 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 26 [2022-07-13 17:59:23,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:23,742 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-07-13 17:59:23,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:59:23,742 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-07-13 17:59:23,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-13 17:59:23,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:23,744 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] [2022-07-13 17:59:23,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:59:23,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:23,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1089755984, now seen corresponding path program 1 times [2022-07-13 17:59:23,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:23,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385721648] [2022-07-13 17:59:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:23,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:59:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:23,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:23,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385721648] [2022-07-13 17:59:23,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385721648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:23,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:23,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:59:23,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065851981] [2022-07-13 17:59:23,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:23,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:59:23,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:23,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:59:23,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:59:23,833 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:59:23,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:23,960 INFO L93 Difference]: Finished difference Result 227 states and 299 transitions. [2022-07-13 17:59:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:59:23,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2022-07-13 17:59:23,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:23,965 INFO L225 Difference]: With dead ends: 227 [2022-07-13 17:59:23,965 INFO L226 Difference]: Without dead ends: 167 [2022-07-13 17:59:23,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:59:23,970 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 182 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:23,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 471 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:59:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-07-13 17:59:23,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2022-07-13 17:59:23,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 135 states have internal predecessors, (169), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (19), 16 states have call predecessors, (19), 18 states have call successors, (19) [2022-07-13 17:59:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 206 transitions. [2022-07-13 17:59:23,993 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 206 transitions. Word has length 30 [2022-07-13 17:59:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:23,993 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 206 transitions. [2022-07-13 17:59:23,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:59:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 206 transitions. [2022-07-13 17:59:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-13 17:59:23,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:23,994 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] [2022-07-13 17:59:23,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:59:23,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:23,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:23,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1322642641, now seen corresponding path program 1 times [2022-07-13 17:59:23,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:23,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581757462] [2022-07-13 17:59:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:23,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:24,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:59:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:24,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:59:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:24,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:24,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581757462] [2022-07-13 17:59:24,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581757462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:24,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:24,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 17:59:24,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923071380] [2022-07-13 17:59:24,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:24,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:59:24,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:24,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:59:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:24,066 INFO L87 Difference]: Start difference. First operand 157 states and 206 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 17:59:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:24,088 INFO L93 Difference]: Finished difference Result 386 states and 514 transitions. [2022-07-13 17:59:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:59:24,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-07-13 17:59:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:24,090 INFO L225 Difference]: With dead ends: 386 [2022-07-13 17:59:24,090 INFO L226 Difference]: Without dead ends: 236 [2022-07-13 17:59:24,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:24,092 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 59 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:24,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 139 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:24,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-07-13 17:59:24,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2022-07-13 17:59:24,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 183 states have (on average 1.3333333333333333) internal successors, (244), 198 states have internal predecessors, (244), 26 states have call successors, (26), 24 states have call predecessors, (26), 24 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2022-07-13 17:59:24,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 302 transitions. [2022-07-13 17:59:24,104 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 302 transitions. Word has length 35 [2022-07-13 17:59:24,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:24,104 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 302 transitions. [2022-07-13 17:59:24,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 17:59:24,105 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 302 transitions. [2022-07-13 17:59:24,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-13 17:59:24,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:24,106 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] [2022-07-13 17:59:24,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:59:24,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:24,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:24,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1351645467, now seen corresponding path program 1 times [2022-07-13 17:59:24,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:24,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934384745] [2022-07-13 17:59:24,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:24,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:24,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:59:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:24,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:24,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934384745] [2022-07-13 17:59:24,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934384745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:24,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:24,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:59:24,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56341295] [2022-07-13 17:59:24,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:24,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:59:24,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:24,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:59:24,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:59:24,150 INFO L87 Difference]: Start difference. First operand 234 states and 302 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:59:24,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:24,185 INFO L93 Difference]: Finished difference Result 669 states and 898 transitions. [2022-07-13 17:59:24,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:59:24,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 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 34 [2022-07-13 17:59:24,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:24,188 INFO L225 Difference]: With dead ends: 669 [2022-07-13 17:59:24,188 INFO L226 Difference]: Without dead ends: 442 [2022-07-13 17:59:24,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:59:24,190 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 52 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:24,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:24,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-07-13 17:59:24,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 427. [2022-07-13 17:59:24,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 335 states have (on average 1.3014925373134327) internal successors, (436), 357 states have internal predecessors, (436), 50 states have call successors, (50), 46 states have call predecessors, (50), 41 states have return successors, (66), 45 states have call predecessors, (66), 50 states have call successors, (66) [2022-07-13 17:59:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 552 transitions. [2022-07-13 17:59:24,226 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 552 transitions. Word has length 34 [2022-07-13 17:59:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:24,227 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 552 transitions. [2022-07-13 17:59:24,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 17:59:24,227 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 552 transitions. [2022-07-13 17:59:24,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-13 17:59:24,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:24,228 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] [2022-07-13 17:59:24,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:59:24,229 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash -259884917, now seen corresponding path program 1 times [2022-07-13 17:59:24,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:24,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413713935] [2022-07-13 17:59:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:24,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 17:59:24,244 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 17:59:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 17:59:24,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 17:59:24,280 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 17:59:24,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 17:59:24,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 17:59:24,284 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-13 17:59:24,286 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 17:59:24,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 05:59:24 BoogieIcfgContainer [2022-07-13 17:59:24,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 17:59:24,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 17:59:24,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 17:59:24,336 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 17:59:24,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:23" (3/4) ... [2022-07-13 17:59:24,343 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 17:59:24,388 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 17:59:24,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 17:59:24,389 INFO L158 Benchmark]: Toolchain (without parser) took 1973.13ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 66.4MB in the beginning and 60.5MB in the end (delta: 5.8MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-07-13 17:59:24,389 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 12.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:59:24,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.87ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 66.2MB in the beginning and 82.2MB in the end (delta: -16.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-07-13 17:59:24,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.27ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 79.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 17:59:24,390 INFO L158 Benchmark]: Boogie Preprocessor took 16.93ms. Allocated memory is still 121.6MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 17:59:24,390 INFO L158 Benchmark]: RCFGBuilder took 323.81ms. Allocated memory is still 121.6MB. Free memory was 78.0MB in the beginning and 61.5MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 17:59:24,390 INFO L158 Benchmark]: TraceAbstraction took 1196.73ms. Allocated memory is still 121.6MB. Free memory was 61.2MB in the beginning and 64.7MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:59:24,390 INFO L158 Benchmark]: Witness Printer took 52.36ms. Allocated memory is still 121.6MB. Free memory was 64.7MB in the beginning and 60.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 17:59:24,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 12.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.87ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 66.2MB in the beginning and 82.2MB in the end (delta: -16.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.27ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 79.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.93ms. Allocated memory is still 121.6MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 323.81ms. Allocated memory is still 121.6MB. Free memory was 78.0MB in the beginning and 61.5MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1196.73ms. Allocated memory is still 121.6MB. Free memory was 61.2MB in the beginning and 64.7MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.36ms. Allocated memory is still 121.6MB. Free memory was 64.7MB in the beginning and 60.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - CounterExampleResult [Line: 158]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L802] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L804] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L810] tmp = __VERIFIER_nondet_int() [L812] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L814] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L877] COND TRUE waterLevel < 2 [L878] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L814] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND TRUE \read(tmp___1) [L840] CALL stopSystem() [L780] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L787] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L840] RET stopSystem() [L847] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L629] CALL __utac_acc__Specification3_spec__1() [L167] int tmp ; [L168] int tmp___0 ; [L169] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L173] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] tmp = isMethaneLevelCritical() [L175] COND FALSE !(\read(tmp)) [L179] CALL, EXPR getWaterLevel() [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L179] RET, EXPR getWaterLevel() [L179] tmp___0 = getWaterLevel() [L181] COND TRUE tmp___0 == 2 [L183] CALL, EXPR isPumpRunning() [L713] int retValue_acc ; [L716] retValue_acc = pumpRunning [L717] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L183] RET, EXPR isPumpRunning() [L183] tmp___1 = isPumpRunning() [L185] COND FALSE !(\read(tmp___1)) [L189] CALL __automaton_fail() [L158] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 313 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 310 mSDsluCounter, 1202 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 726 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 476 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-13 17:59:24,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE