./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product19.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_spec1_product19.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 e25743107029d12d34dddb50b6115a3bfc10c36f90a80b04d3daa9d63cbcdce5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:57:41,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:57:41,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:57:41,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:57:41,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:57:41,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:57:41,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:57:41,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:57:41,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:57:41,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:57:41,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:57:41,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:57:41,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:57:41,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:57:41,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:57:41,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:57:41,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:57:41,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:57:41,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:57:41,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:57:41,348 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:57:41,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:57:41,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:57:41,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:57:41,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:57:41,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:57:41,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:57:41,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:57:41,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:57:41,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:57:41,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:57:41,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:57:41,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:57:41,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:57:41,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:57:41,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:57:41,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:57:41,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:57:41,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:57:41,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:57:41,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:57:41,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:57:41,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:57:41,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:57:41,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:57:41,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:57:41,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:57:41,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:57:41,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:57:41,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:57:41,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:57:41,376 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:57:41,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:57:41,377 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:57:41,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:57:41,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:57:41,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:57:41,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:57:41,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:57:41,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:57:41,378 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:57:41,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:57:41,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:57:41,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:57:41,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:57:41,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:57:41,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:57:41,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:57:41,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:57:41,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:57:41,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:57:41,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:57:41,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:57:41,380 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:57:41,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:57:41,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:57:41,380 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e25743107029d12d34dddb50b6115a3bfc10c36f90a80b04d3daa9d63cbcdce5 [2022-07-13 17:57:41,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:57:41,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:57:41,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:57:41,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:57:41,574 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:57:41,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2022-07-13 17:57:41,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3620bc5b2/eecb6b516511479ea43a4784bbc8f60b/FLAGc321e067a [2022-07-13 17:57:41,961 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:57:41,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2022-07-13 17:57:41,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3620bc5b2/eecb6b516511479ea43a4784bbc8f60b/FLAGc321e067a [2022-07-13 17:57:42,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3620bc5b2/eecb6b516511479ea43a4784bbc8f60b [2022-07-13 17:57:42,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:57:42,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:57:42,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:57:42,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:57:42,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:57:42,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cb57c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42, skipping insertion in model container [2022-07-13 17:57:42,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:57:42,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:57:42,550 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_product19.cil.c[2044,2057] [2022-07-13 17:57:42,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:57:42,611 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:57:42,620 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_product19.cil.c[2044,2057] [2022-07-13 17:57:42,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:57:42,690 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:57:42,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42 WrapperNode [2022-07-13 17:57:42,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:57:42,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:57:42,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:57:42,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:57:42,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,733 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 216 [2022-07-13 17:57:42,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:57:42,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:57:42,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:57:42,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:57:42,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:57:42,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:57:42,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:57:42,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:57:42,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (1/1) ... [2022-07-13 17:57:42,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:57:42,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:57:42,775 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 17:57:42,797 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 17:57:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:57:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-13 17:57:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-13 17:57:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 17:57:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 17:57:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 17:57:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 17:57:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-13 17:57:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-13 17:57:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-13 17:57:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-13 17:57:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-13 17:57:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-13 17:57:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:57:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-13 17:57:42,802 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-13 17:57:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:57:42,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:57:42,846 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:57:42,847 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:57:43,051 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:57:43,056 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:57:43,056 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 17:57:43,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:57:43 BoogieIcfgContainer [2022-07-13 17:57:43,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:57:43,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:57:43,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:57:43,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:57:43,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:57:42" (1/3) ... [2022-07-13 17:57:43,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c0de5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:57:43, skipping insertion in model container [2022-07-13 17:57:43,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:42" (2/3) ... [2022-07-13 17:57:43,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c0de5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:57:43, skipping insertion in model container [2022-07-13 17:57:43,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:57:43" (3/3) ... [2022-07-13 17:57:43,087 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2022-07-13 17:57:43,098 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:57:43,100 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:57:43,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:57:43,136 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@4056c497, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@171e4515 [2022-07-13 17:57:43,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:57:43,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 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) [2022-07-13 17:57:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 17:57:43,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:43,145 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] [2022-07-13 17:57:43,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:43,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:43,149 INFO L85 PathProgramCache]: Analyzing trace with hash 233664886, now seen corresponding path program 1 times [2022-07-13 17:57:43,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:43,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773907733] [2022-07-13 17:57:43,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:43,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:57:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,291 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 17:57:43,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:43,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773907733] [2022-07-13 17:57:43,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773907733] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:43,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:43,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:57:43,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280762091] [2022-07-13 17:57:43,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:43,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:57:43,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:43,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:57:43,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 17:57:43,317 INFO L87 Difference]: Start difference. First operand has 80 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 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) 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) [2022-07-13 17:57:43,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:43,337 INFO L93 Difference]: Finished difference Result 152 states and 205 transitions. [2022-07-13 17:57:43,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:57:43,338 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 [2022-07-13 17:57:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:43,344 INFO L225 Difference]: With dead ends: 152 [2022-07-13 17:57:43,344 INFO L226 Difference]: Without dead ends: 71 [2022-07-13 17:57:43,346 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 17:57:43,348 INFO L413 NwaCegarLoop]: 99 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, 99 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 17:57:43,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:57:43,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-07-13 17:57:43,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-07-13 17:57:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 59 states have internal predecessors, (69), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-13 17:57:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2022-07-13 17:57:43,379 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 90 transitions. Word has length 23 [2022-07-13 17:57:43,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:43,380 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 90 transitions. [2022-07-13 17:57:43,380 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) [2022-07-13 17:57:43,380 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 90 transitions. [2022-07-13 17:57:43,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-13 17:57:43,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:43,382 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] [2022-07-13 17:57:43,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:57:43,382 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:43,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:43,383 INFO L85 PathProgramCache]: Analyzing trace with hash 962070603, now seen corresponding path program 1 times [2022-07-13 17:57:43,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:43,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909707842] [2022-07-13 17:57:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:43,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-13 17:57:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,499 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 17:57:43,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:43,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909707842] [2022-07-13 17:57:43,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909707842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:43,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:43,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 17:57:43,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14721479] [2022-07-13 17:57:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:43,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:57:43,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:43,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:57:43,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:57:43,502 INFO L87 Difference]: Start difference. First operand 71 states and 90 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) [2022-07-13 17:57:43,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:43,522 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2022-07-13 17:57:43,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:57:43,522 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 [2022-07-13 17:57:43,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:43,523 INFO L225 Difference]: With dead ends: 104 [2022-07-13 17:57:43,523 INFO L226 Difference]: Without dead ends: 62 [2022-07-13 17:57:43,524 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 17:57:43,525 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 16 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 133 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 17:57:43,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:57:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-13 17:57:43,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-07-13 17:57:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 53 states have internal predecessors, (62), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-13 17:57:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-07-13 17:57:43,534 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 24 [2022-07-13 17:57:43,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:43,534 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-07-13 17:57:43,534 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) [2022-07-13 17:57:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-07-13 17:57:43,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 17:57:43,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:43,535 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] [2022-07-13 17:57:43,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:57:43,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:43,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1633759331, now seen corresponding path program 1 times [2022-07-13 17:57:43,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:43,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293966528] [2022-07-13 17:57:43,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:43,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:57:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,648 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 17:57:43,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:43,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293966528] [2022-07-13 17:57:43,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293966528] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:43,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:43,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:57:43,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137393939] [2022-07-13 17:57:43,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:43,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:57:43,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:43,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:57:43,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:57:43,651 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 17:57:43,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:43,759 INFO L93 Difference]: Finished difference Result 213 states and 275 transitions. [2022-07-13 17:57:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:57:43,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 28 [2022-07-13 17:57:43,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:43,761 INFO L225 Difference]: With dead ends: 213 [2022-07-13 17:57:43,761 INFO L226 Difference]: Without dead ends: 158 [2022-07-13 17:57:43,762 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 17:57:43,763 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 163 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:57:43,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 423 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:57:43,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-07-13 17:57:43,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 152. [2022-07-13 17:57:43,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 127 states have internal predecessors, (153), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-07-13 17:57:43,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 196 transitions. [2022-07-13 17:57:43,780 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 196 transitions. Word has length 28 [2022-07-13 17:57:43,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:43,780 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 196 transitions. [2022-07-13 17:57:43,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 17:57:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 196 transitions. [2022-07-13 17:57:43,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-13 17:57:43,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:43,782 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] [2022-07-13 17:57:43,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:57:43,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:43,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:43,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1210161126, now seen corresponding path program 1 times [2022-07-13 17:57:43,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:43,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082004859] [2022-07-13 17:57:43,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:43,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:57:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:57:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,834 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 17:57:43,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:43,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082004859] [2022-07-13 17:57:43,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082004859] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:43,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:43,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:57:43,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11361552] [2022-07-13 17:57:43,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:43,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:57:43,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:43,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:57:43,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:57:43,837 INFO L87 Difference]: Start difference. First operand 152 states and 196 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 17:57:43,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:43,905 INFO L93 Difference]: Finished difference Result 443 states and 584 transitions. [2022-07-13 17:57:43,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:57:43,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-13 17:57:43,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:43,908 INFO L225 Difference]: With dead ends: 443 [2022-07-13 17:57:43,909 INFO L226 Difference]: Without dead ends: 298 [2022-07-13 17:57:43,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:57:43,910 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 51 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:57:43,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 375 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:57:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-07-13 17:57:43,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 289. [2022-07-13 17:57:43,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 212 states have (on average 1.3349056603773586) internal successors, (283), 239 states have internal predecessors, (283), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (47), 30 states have call predecessors, (47), 42 states have call successors, (47) [2022-07-13 17:57:43,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 372 transitions. [2022-07-13 17:57:43,933 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 372 transitions. Word has length 33 [2022-07-13 17:57:43,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:43,933 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 372 transitions. [2022-07-13 17:57:43,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 17:57:43,933 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 372 transitions. [2022-07-13 17:57:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-13 17:57:43,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:43,935 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] [2022-07-13 17:57:43,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:57:43,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:43,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:43,936 INFO L85 PathProgramCache]: Analyzing trace with hash -618871306, now seen corresponding path program 1 times [2022-07-13 17:57:43,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:43,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180388368] [2022-07-13 17:57:43,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:43,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:57:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:57:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:57:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:43,987 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 17:57:43,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:43,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180388368] [2022-07-13 17:57:43,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180388368] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:43,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:43,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:57:43,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638521097] [2022-07-13 17:57:43,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:43,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:57:43,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:43,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:57:43,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:57:43,989 INFO L87 Difference]: Start difference. First operand 289 states and 372 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 17:57:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:44,063 INFO L93 Difference]: Finished difference Result 514 states and 668 transitions. [2022-07-13 17:57:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:57:44,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-13 17:57:44,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:44,065 INFO L225 Difference]: With dead ends: 514 [2022-07-13 17:57:44,065 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 17:57:44,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:57:44,067 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:57:44,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:57:44,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 17:57:44,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 17:57:44,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 17:57:44,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 17:57:44,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-07-13 17:57:44,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:44,069 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 17:57:44,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 17:57:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 17:57:44,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 17:57:44,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 17:57:44,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:57:44,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 17:57:44,494 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 757 764) the Hoare annotation is: true [2022-07-13 17:57:44,495 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 757 764) no Hoare annotation was computed. [2022-07-13 17:57:44,495 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 757 764) no Hoare annotation was computed. [2022-07-13 17:57:44,495 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 716 722) no Hoare annotation was computed. [2022-07-13 17:57:44,495 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 716 722) the Hoare annotation is: true [2022-07-13 17:57:44,495 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 120 131) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-13 17:57:44,496 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 120 131) no Hoare annotation was computed. [2022-07-13 17:57:44,496 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2022-07-13 17:57:44,496 INFO L899 garLoopResultBuilder]: For program point L696-1(lines 695 714) no Hoare annotation was computed. [2022-07-13 17:57:44,496 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 692 715) no Hoare annotation was computed. [2022-07-13 17:57:44,496 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:44,496 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2022-07-13 17:57:44,496 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:44,497 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2022-07-13 17:57:44,497 INFO L895 garLoopResultBuilder]: At program point L61-1(lines 53 77) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0) (not (= ~methaneLevelCritical~0 0))))) [2022-07-13 17:57:44,497 INFO L895 garLoopResultBuilder]: At program point L743(line 743) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-13 17:57:44,497 INFO L895 garLoopResultBuilder]: At program point L743-1(lines 724 748) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-13 17:57:44,497 INFO L899 garLoopResultBuilder]: For program point L830(lines 830 834) no Hoare annotation was computed. [2022-07-13 17:57:44,497 INFO L899 garLoopResultBuilder]: For program point L830-2(lines 830 834) no Hoare annotation was computed. [2022-07-13 17:57:44,498 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-13 17:57:44,498 INFO L895 garLoopResultBuilder]: At program point L178(lines 173 181) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:44,498 INFO L895 garLoopResultBuilder]: At program point L781(lines 776 784) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0))))) [2022-07-13 17:57:44,498 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2022-07-13 17:57:44,498 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 96 107) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:44,498 INFO L899 garLoopResultBuilder]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2022-07-13 17:57:44,499 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 740) no Hoare annotation was computed. [2022-07-13 17:57:44,499 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-13 17:57:44,499 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2022-07-13 17:57:44,499 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 745) no Hoare annotation was computed. [2022-07-13 17:57:44,499 INFO L895 garLoopResultBuilder]: At program point L84(lines 79 86) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:44,499 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 692 715) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-13 17:57:44,499 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 692 715) no Hoare annotation was computed. [2022-07-13 17:57:44,500 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2022-07-13 17:57:44,500 INFO L895 garLoopResultBuilder]: At program point L836(lines 821 839) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:44,500 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2022-07-13 17:57:44,500 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 589 618) the Hoare annotation is: true [2022-07-13 17:57:44,500 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2022-07-13 17:57:44,500 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2022-07-13 17:57:44,500 INFO L899 garLoopResultBuilder]: For program point L600(line 600) no Hoare annotation was computed. [2022-07-13 17:57:44,501 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2022-07-13 17:57:44,501 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2022-07-13 17:57:44,501 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2022-07-13 17:57:44,510 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2022-07-13 17:57:44,510 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2022-07-13 17:57:44,510 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 132 140) the Hoare annotation is: true [2022-07-13 17:57:44,511 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 132 140) no Hoare annotation was computed. [2022-07-13 17:57:44,511 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 132 140) no Hoare annotation was computed. [2022-07-13 17:57:44,511 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 892) no Hoare annotation was computed. [2022-07-13 17:57:44,511 INFO L899 garLoopResultBuilder]: For program point L886-1(lines 886 892) no Hoare annotation was computed. [2022-07-13 17:57:44,511 INFO L902 garLoopResultBuilder]: At program point L659(lines 652 661) the Hoare annotation is: true [2022-07-13 17:57:44,511 INFO L895 garLoopResultBuilder]: At program point L911(lines 866 913) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:44,512 INFO L895 garLoopResultBuilder]: At program point L878(line 878) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:44,512 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 679) no Hoare annotation was computed. [2022-07-13 17:57:44,512 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 17:57:44,512 INFO L899 garLoopResultBuilder]: For program point L672-2(lines 672 679) no Hoare annotation was computed. [2022-07-13 17:57:44,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 17:57:44,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 17:57:44,512 INFO L895 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: false [2022-07-13 17:57:44,513 INFO L902 garLoopResultBuilder]: At program point L681(lines 662 684) the Hoare annotation is: true [2022-07-13 17:57:44,513 INFO L895 garLoopResultBuilder]: At program point L648(lines 644 650) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)) [2022-07-13 17:57:44,513 INFO L895 garLoopResultBuilder]: At program point L582(lines 577 585) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) [2022-07-13 17:57:44,513 INFO L899 garLoopResultBuilder]: For program point L867(lines 866 913) no Hoare annotation was computed. [2022-07-13 17:57:44,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 17:57:44,513 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 909) no Hoare annotation was computed. [2022-07-13 17:57:44,514 INFO L895 garLoopResultBuilder]: At program point L574(lines 570 576) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-13 17:57:44,514 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:44,514 INFO L902 garLoopResultBuilder]: At program point L917(lines 856 921) the Hoare annotation is: true [2022-07-13 17:57:44,514 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 882) no Hoare annotation was computed. [2022-07-13 17:57:44,514 INFO L899 garLoopResultBuilder]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2022-07-13 17:57:44,514 INFO L899 garLoopResultBuilder]: For program point L868(lines 868 872) no Hoare annotation was computed. [2022-07-13 17:57:44,514 INFO L895 garLoopResultBuilder]: At program point L567(lines 563 569) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-13 17:57:44,515 INFO L895 garLoopResultBuilder]: At program point L852(lines 840 854) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:44,515 INFO L895 garLoopResultBuilder]: At program point L914(lines 865 915) the Hoare annotation is: false [2022-07-13 17:57:44,515 INFO L899 garLoopResultBuilder]: For program point L844(lines 844 850) no Hoare annotation was computed. [2022-07-13 17:57:44,515 INFO L899 garLoopResultBuilder]: For program point L844-1(lines 844 850) no Hoare annotation was computed. [2022-07-13 17:57:44,515 INFO L899 garLoopResultBuilder]: For program point L902(lines 902 908) no Hoare annotation was computed. [2022-07-13 17:57:44,516 INFO L895 garLoopResultBuilder]: At program point L902-2(lines 896 909) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:44,516 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 108 119) no Hoare annotation was computed. [2022-07-13 17:57:44,516 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2022-07-13 17:57:44,517 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 108 119) the Hoare annotation is: true [2022-07-13 17:57:44,522 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-13 17:57:44,524 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 17:57:44,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 05:57:44 BoogieIcfgContainer [2022-07-13 17:57:44,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 17:57:44,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 17:57:44,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 17:57:44,552 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 17:57:44,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:57:43" (3/4) ... [2022-07-13 17:57:44,554 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 17:57:44,558 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-13 17:57:44,558 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-13 17:57:44,559 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-13 17:57:44,559 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-13 17:57:44,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-13 17:57:44,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-13 17:57:44,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-13 17:57:44,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-13 17:57:44,571 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-13 17:57:44,571 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 17:57:44,571 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 17:57:44,572 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 17:57:44,572 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:57:44,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:57:44,595 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-13 17:57:44,596 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive [2022-07-13 17:57:44,597 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:57:44,598 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2022-07-13 17:57:44,599 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-07-13 17:57:44,600 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) [2022-07-13 17:57:44,600 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:57:44,600 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:57:44,600 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:57:44,624 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 17:57:44,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 17:57:44,625 INFO L158 Benchmark]: Toolchain (without parser) took 2252.26ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 117.7MB in the beginning and 159.3MB in the end (delta: -41.6MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-07-13 17:57:44,625 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:57:44,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.99ms. Allocated memory is still 146.8MB. Free memory was 117.3MB in the beginning and 114.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 17:57:44,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.91ms. Allocated memory is still 146.8MB. Free memory was 114.1MB in the beginning and 111.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 17:57:44,626 INFO L158 Benchmark]: Boogie Preprocessor took 15.57ms. Allocated memory is still 146.8MB. Free memory was 111.8MB in the beginning and 110.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 17:57:44,626 INFO L158 Benchmark]: RCFGBuilder took 314.99ms. Allocated memory is still 146.8MB. Free memory was 110.4MB in the beginning and 95.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 17:57:44,626 INFO L158 Benchmark]: TraceAbstraction took 1483.58ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 94.6MB in the beginning and 164.5MB in the end (delta: -69.9MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-07-13 17:57:44,628 INFO L158 Benchmark]: Witness Printer took 73.33ms. Allocated memory is still 192.9MB. Free memory was 164.5MB in the beginning and 159.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 17:57:44,631 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 96.5MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.99ms. Allocated memory is still 146.8MB. Free memory was 117.3MB in the beginning and 114.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.91ms. Allocated memory is still 146.8MB. Free memory was 114.1MB in the beginning and 111.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.57ms. Allocated memory is still 146.8MB. Free memory was 111.8MB in the beginning and 110.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 314.99ms. Allocated memory is still 146.8MB. Free memory was 110.4MB in the beginning and 95.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1483.58ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 94.6MB in the beginning and 164.5MB in the end (delta: -69.9MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Witness Printer took 73.33ms. Allocated memory is still 192.9MB. Free memory was 164.5MB in the beginning and 159.3MB in the end (delta: 5.2MB). 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 - PositiveResult [Line: 83]: 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 8 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 1154 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 750 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 404 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=289occurred in iteration=4, InterpolantAutomatonStates: 25, 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, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 370 PreInvPairs, 436 NumberOfFragments, 215 HoareAnnotationTreeSize, 370 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 1632 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 724]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 652]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive - InvariantResult [Line: 865]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) RESULT: Ultimate proved your program to be correct! [2022-07-13 17:57:44,687 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