./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_product47.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 637e567dc685efcee308b97525909830094648d3754bb07704f538b9a7ab34e7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:38:30,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:38:30,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:38:30,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:38:30,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:38:30,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:38:30,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:38:30,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:38:30,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:38:30,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:38:30,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:38:30,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:38:30,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:38:30,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:38:30,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:38:30,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:38:30,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:38:30,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:38:30,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:38:30,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:38:30,375 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:38:30,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:38:30,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:38:30,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:38:30,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:38:30,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:38:30,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:38:30,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:38:30,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:38:30,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:38:30,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:38:30,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:38:30,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:38:30,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:38:30,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:38:30,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:38:30,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:38:30,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:38:30,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:38:30,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:38:30,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:38:30,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:38:30,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:38:30,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:38:30,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:38:30,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:38:30,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:38:30,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:38:30,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:38:30,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:38:30,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:38:30,410 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:38:30,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:38:30,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:38:30,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:38:30,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:38:30,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:38:30,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:38:30,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:38:30,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:38:30,412 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:38:30,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:38:30,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:38:30,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:38:30,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:38:30,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:38:30,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:38:30,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:38:30,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:38:30,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:38:30,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:38:30,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:38:30,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:38:30,418 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:38:30,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:38:30,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:38:30,419 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637e567dc685efcee308b97525909830094648d3754bb07704f538b9a7ab34e7 [2022-07-22 17:38:30,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:38:30,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:38:30,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:38:30,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:38:30,647 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:38:30,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2022-07-22 17:38:30,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639ddab64/58ddafb82bd24eb9bc51245c3689843c/FLAG7f0ba87a4 [2022-07-22 17:38:31,096 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:38:31,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2022-07-22 17:38:31,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639ddab64/58ddafb82bd24eb9bc51245c3689843c/FLAG7f0ba87a4 [2022-07-22 17:38:31,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639ddab64/58ddafb82bd24eb9bc51245c3689843c [2022-07-22 17:38:31,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:38:31,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:38:31,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:38:31,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:38:31,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:38:31,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55324873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31, skipping insertion in model container [2022-07-22 17:38:31,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:38:31,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:38:31,271 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_product47.cil.c[1605,1618] [2022-07-22 17:38:31,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:38:31,403 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:38:31,414 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_product47.cil.c[1605,1618] [2022-07-22 17:38:31,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:38:31,489 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:38:31,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31 WrapperNode [2022-07-22 17:38:31,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:38:31,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:38:31,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:38:31,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:38:31,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,536 INFO L137 Inliner]: procedures = 55, calls = 158, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 253 [2022-07-22 17:38:31,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:38:31,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:38:31,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:38:31,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:38:31,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:38:31,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:38:31,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:38:31,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:38:31,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (1/1) ... [2022-07-22 17:38:31,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:38:31,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:38:31,600 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) [2022-07-22 17:38:31,601 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 [2022-07-22 17:38:31,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:38:31,626 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-22 17:38:31,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-22 17:38:31,627 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-22 17:38:31,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-22 17:38:31,627 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-22 17:38:31,627 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-22 17:38:31,627 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-22 17:38:31,627 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-22 17:38:31,628 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-22 17:38:31,628 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-22 17:38:31,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-22 17:38:31,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-22 17:38:31,628 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-22 17:38:31,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-22 17:38:31,629 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-22 17:38:31,629 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-22 17:38:31,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:38:31,629 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-22 17:38:31,629 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-22 17:38:31,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:38:31,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:38:31,687 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:38:31,688 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:38:31,922 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:38:31,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:38:31,929 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 17:38:31,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:31 BoogieIcfgContainer [2022-07-22 17:38:31,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:38:31,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:38:31,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:38:31,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:38:31,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:38:31" (1/3) ... [2022-07-22 17:38:31,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e70036a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:38:31, skipping insertion in model container [2022-07-22 17:38:31,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:31" (2/3) ... [2022-07-22 17:38:31,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e70036a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:38:31, skipping insertion in model container [2022-07-22 17:38:31,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:31" (3/3) ... [2022-07-22 17:38:31,939 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2022-07-22 17:38:31,948 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:38:31,948 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:38:31,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:38:31,983 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@5523d030, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@315815eb [2022-07-22 17:38:31,984 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:38:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 84 states have internal predecessors, (103), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 17:38:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 17:38:31,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:31,995 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] [2022-07-22 17:38:31,995 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:31,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:31,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1241613361, now seen corresponding path program 1 times [2022-07-22 17:38:32,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:32,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841854909] [2022-07-22 17:38:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:32,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 17:38:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:32,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:32,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841854909] [2022-07-22 17:38:32,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841854909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:32,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:32,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 17:38:32,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505291460] [2022-07-22 17:38:32,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:32,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 17:38:32,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:32,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 17:38:32,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 17:38:32,244 INFO L87 Difference]: Start difference. First operand has 102 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 84 states have internal predecessors, (103), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) 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) [2022-07-22 17:38:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:32,267 INFO L93 Difference]: Finished difference Result 196 states and 265 transitions. [2022-07-22 17:38:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 17:38:32,268 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 [2022-07-22 17:38:32,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:32,274 INFO L225 Difference]: With dead ends: 196 [2022-07-22 17:38:32,274 INFO L226 Difference]: Without dead ends: 93 [2022-07-22 17:38:32,277 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 [2022-07-22 17:38:32,279 INFO L413 NwaCegarLoop]: 129 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, 129 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 [2022-07-22 17:38:32,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:32,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-22 17:38:32,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-22 17:38:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 76 states have internal predecessors, (89), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-22 17:38:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 120 transitions. [2022-07-22 17:38:32,313 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 120 transitions. Word has length 25 [2022-07-22 17:38:32,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:32,313 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 120 transitions. [2022-07-22 17:38:32,313 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) [2022-07-22 17:38:32,313 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 120 transitions. [2022-07-22 17:38:32,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-22 17:38:32,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:32,315 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] [2022-07-22 17:38:32,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 17:38:32,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:32,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:32,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1385428186, now seen corresponding path program 1 times [2022-07-22 17:38:32,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:32,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260111044] [2022-07-22 17:38:32,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:32,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 17:38:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:32,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:32,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260111044] [2022-07-22 17:38:32,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260111044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:32,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:32,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:32,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156951660] [2022-07-22 17:38:32,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:32,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:32,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:32,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:32,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:32,389 INFO L87 Difference]: Start difference. First operand 93 states and 120 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) [2022-07-22 17:38:32,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:32,402 INFO L93 Difference]: Finished difference Result 148 states and 190 transitions. [2022-07-22 17:38:32,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:32,403 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 [2022-07-22 17:38:32,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:32,404 INFO L225 Difference]: With dead ends: 148 [2022-07-22 17:38:32,404 INFO L226 Difference]: Without dead ends: 84 [2022-07-22 17:38:32,405 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 [2022-07-22 17:38:32,405 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 16 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 193 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 [2022-07-22 17:38:32,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 193 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:32,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-07-22 17:38:32,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-07-22 17:38:32,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 70 states have internal predecessors, (82), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 17:38:32,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2022-07-22 17:38:32,417 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 26 [2022-07-22 17:38:32,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:32,417 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2022-07-22 17:38:32,417 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) [2022-07-22 17:38:32,417 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2022-07-22 17:38:32,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 17:38:32,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:32,418 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] [2022-07-22 17:38:32,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 17:38:32,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:32,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:32,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1349526136, now seen corresponding path program 1 times [2022-07-22 17:38:32,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:32,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394218050] [2022-07-22 17:38:32,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:32,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:32,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:38:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:32,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:32,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:32,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394218050] [2022-07-22 17:38:32,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394218050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:32,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:32,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:38:32,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756590382] [2022-07-22 17:38:32,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:32,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:38:32,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:32,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:38:32,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:38:32,559 INFO L87 Difference]: Start difference. First operand 84 states and 108 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) [2022-07-22 17:38:32,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:32,729 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2022-07-22 17:38:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 17:38:32,730 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 [2022-07-22 17:38:32,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:32,737 INFO L225 Difference]: With dead ends: 281 [2022-07-22 17:38:32,738 INFO L226 Difference]: Without dead ends: 204 [2022-07-22 17:38:32,741 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 [2022-07-22 17:38:32,745 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 223 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:32,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 527 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 17:38:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-07-22 17:38:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 198. [2022-07-22 17:38:32,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 145 states have (on average 1.3517241379310345) internal successors, (196), 163 states have internal predecessors, (196), 31 states have call successors, (31), 21 states have call predecessors, (31), 21 states have return successors, (32), 23 states have call predecessors, (32), 31 states have call successors, (32) [2022-07-22 17:38:32,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2022-07-22 17:38:32,781 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 30 [2022-07-22 17:38:32,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:32,781 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2022-07-22 17:38:32,781 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) [2022-07-22 17:38:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2022-07-22 17:38:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-22 17:38:32,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:32,783 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] [2022-07-22 17:38:32,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 17:38:32,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash 260625278, now seen corresponding path program 1 times [2022-07-22 17:38:32,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:32,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470158262] [2022-07-22 17:38:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:32,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 17:38:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:32,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:32,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470158262] [2022-07-22 17:38:32,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470158262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:32,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:32,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:38:32,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644820443] [2022-07-22 17:38:32,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:32,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:38:32,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:32,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:38:32,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:38:32,872 INFO L87 Difference]: Start difference. First operand 198 states and 259 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) [2022-07-22 17:38:32,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:32,926 INFO L93 Difference]: Finished difference Result 572 states and 772 transitions. [2022-07-22 17:38:32,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:38:32,926 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 [2022-07-22 17:38:32,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:32,931 INFO L225 Difference]: With dead ends: 572 [2022-07-22 17:38:32,931 INFO L226 Difference]: Without dead ends: 381 [2022-07-22 17:38:32,932 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 [2022-07-22 17:38:32,934 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 77 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 445 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 [2022-07-22 17:38:32,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 445 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:32,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-07-22 17:38:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 372. [2022-07-22 17:38:32,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 270 states have (on average 1.325925925925926) internal successors, (358), 302 states have internal predecessors, (358), 62 states have call successors, (62), 42 states have call predecessors, (62), 39 states have return successors, (68), 43 states have call predecessors, (68), 62 states have call successors, (68) [2022-07-22 17:38:32,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 488 transitions. [2022-07-22 17:38:32,975 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 488 transitions. Word has length 34 [2022-07-22 17:38:32,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:32,976 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 488 transitions. [2022-07-22 17:38:32,976 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) [2022-07-22 17:38:32,976 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 488 transitions. [2022-07-22 17:38:32,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-22 17:38:32,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:32,978 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] [2022-07-22 17:38:32,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:38:32,979 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:32,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:32,979 INFO L85 PathProgramCache]: Analyzing trace with hash -862427773, now seen corresponding path program 1 times [2022-07-22 17:38:32,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:32,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108202939] [2022-07-22 17:38:32,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:32,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:33,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:38:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:33,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108202939] [2022-07-22 17:38:33,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108202939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:33,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:33,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:33,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239302992] [2022-07-22 17:38:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:33,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:33,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:33,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:33,034 INFO L87 Difference]: Start difference. First operand 372 states and 488 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-07-22 17:38:33,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:33,080 INFO L93 Difference]: Finished difference Result 882 states and 1177 transitions. [2022-07-22 17:38:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:33,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 36 [2022-07-22 17:38:33,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:33,085 INFO L225 Difference]: With dead ends: 882 [2022-07-22 17:38:33,085 INFO L226 Difference]: Without dead ends: 517 [2022-07-22 17:38:33,086 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 [2022-07-22 17:38:33,087 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 69 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:33,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 178 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-07-22 17:38:33,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 506. [2022-07-22 17:38:33,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 378 states have (on average 1.2804232804232805) internal successors, (484), 405 states have internal predecessors, (484), 69 states have call successors, (69), 61 states have call predecessors, (69), 58 states have return successors, (91), 63 states have call predecessors, (91), 69 states have call successors, (91) [2022-07-22 17:38:33,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 644 transitions. [2022-07-22 17:38:33,130 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 644 transitions. Word has length 36 [2022-07-22 17:38:33,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:33,130 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 644 transitions. [2022-07-22 17:38:33,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-07-22 17:38:33,131 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 644 transitions. [2022-07-22 17:38:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-22 17:38:33,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:33,136 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] [2022-07-22 17:38:33,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:38:33,136 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:33,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:33,137 INFO L85 PathProgramCache]: Analyzing trace with hash 764839012, now seen corresponding path program 1 times [2022-07-22 17:38:33,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:33,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676662899] [2022-07-22 17:38:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:33,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:38:33,187 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 17:38:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:38:33,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 17:38:33,214 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 17:38:33,215 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 17:38:33,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 17:38:33,218 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-22 17:38:33,220 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 17:38:33,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 05:38:33 BoogieIcfgContainer [2022-07-22 17:38:33,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 17:38:33,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 17:38:33,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 17:38:33,262 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 17:38:33,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:31" (3/4) ... [2022-07-22 17:38:33,263 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 17:38:33,315 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 17:38:33,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 17:38:33,316 INFO L158 Benchmark]: Toolchain (without parser) took 2195.66ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 57.1MB in the beginning and 53.7MB in the end (delta: 3.3MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2022-07-22 17:38:33,316 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 73.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:38:33,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.41ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 38.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-22 17:38:33,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.96ms. Allocated memory is still 94.4MB. Free memory was 38.0MB in the beginning and 35.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:38:33,317 INFO L158 Benchmark]: Boogie Preprocessor took 29.21ms. Allocated memory is still 94.4MB. Free memory was 35.5MB in the beginning and 72.8MB in the end (delta: -37.3MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2022-07-22 17:38:33,317 INFO L158 Benchmark]: RCFGBuilder took 362.39ms. Allocated memory is still 94.4MB. Free memory was 72.5MB in the beginning and 55.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 17:38:33,318 INFO L158 Benchmark]: TraceAbstraction took 1328.07ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 55.3MB in the beginning and 57.9MB in the end (delta: -2.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-07-22 17:38:33,318 INFO L158 Benchmark]: Witness Printer took 53.91ms. Allocated memory is still 119.5MB. Free memory was 57.9MB in the beginning and 53.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 17:38:33,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 73.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.41ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 38.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.96ms. Allocated memory is still 94.4MB. Free memory was 38.0MB in the beginning and 35.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.21ms. Allocated memory is still 94.4MB. Free memory was 35.5MB in the beginning and 72.8MB in the end (delta: -37.3MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * RCFGBuilder took 362.39ms. Allocated memory is still 94.4MB. Free memory was 72.5MB in the beginning and 55.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1328.07ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 55.3MB in the beginning and 57.9MB in the end (delta: -2.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Witness Printer took 53.91ms. Allocated memory is still 119.5MB. Free memory was 57.9MB in the beginning and 53.7MB 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: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int cleanupTimeShifts = 4; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int pumpRunning = 0; [L640] int systemActive = 1; [L851] int waterLevel = 1; [L852] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] int retValue_acc ; [L141] int tmp ; [L145] FCALL select_helpers() [L146] FCALL select_features() [L147] CALL, EXPR valid_product() [L189] int retValue_acc ; [L192] retValue_acc = 1 [L193] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L147] RET, EXPR valid_product() [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) [L151] FCALL setup() [L152] CALL runTest() [L131] CALL test() [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L575] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L577] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L583] tmp = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L587] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] COND TRUE waterLevel < 2 [L870] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L587] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L593] tmp___0 = __VERIFIER_nondet_int() [L595] 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] [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND FALSE !(\read(tmp___2)) [L609] tmp___1 = __VERIFIER_nondet_int() [L611] COND TRUE \read(tmp___1) [L613] CALL stopSystem() [L838] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L845] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L613] RET stopSystem() [L620] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L647] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L654] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L662] CALL __utac_acc__Specification3_spec__1() [L946] int tmp ; [L947] int tmp___0 ; [L948] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L952] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L890] int retValue_acc ; [L893] retValue_acc = methaneLevelCritical [L894] 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] [L952] 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] [L952] tmp = isMethaneLevelCritical() [L954] COND FALSE !(\read(tmp)) [L958] CALL, EXPR getWaterLevel() [L922] int retValue_acc ; [L925] retValue_acc = waterLevel [L926] 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] [L958] RET, EXPR getWaterLevel() [L958] tmp___0 = getWaterLevel() [L960] COND TRUE tmp___0 == 2 [L962] CALL, EXPR isPumpRunning() [L771] int retValue_acc ; [L774] retValue_acc = pumpRunning [L775] 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] [L962] RET, EXPR isPumpRunning() [L962] tmp___1 = isPumpRunning() [L964] COND FALSE !(\read(tmp___1)) [L968] CALL __automaton_fail() [L54] 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 10 procedures, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 389 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 385 mSDsluCounter, 1472 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 875 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 597 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred 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, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 290 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! [2022-07-22 17:38:33,350 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