./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa --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 fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:40:08,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:40:08,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:40:08,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:40:08,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:40:08,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:40:08,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:40:08,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:40:08,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:40:08,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:40:08,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:40:08,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:40:08,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:40:08,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:40:08,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:40:08,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:40:08,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:40:08,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:40:08,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:40:08,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:40:08,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:40:08,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:40:08,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:40:08,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:40:08,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:40:08,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:40:08,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:40:08,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:40:08,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:40:08,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:40:08,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:40:08,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:40:08,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:40:08,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:40:08,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:40:08,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:40:08,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:40:08,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:40:08,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:40:08,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:40:08,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:40:08,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 23:40:08,609 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:40:08,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:40:08,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:40:08,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:40:08,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:40:08,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:40:08,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:40:08,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:40:08,615 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:40:08,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:40:08,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:40:08,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:40:08,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:40:08,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:40:08,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:40:08,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:40:08,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:40:08,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:40:08,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:40:08,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:40:08,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:40:08,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:40:08,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:40:08,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:40:08,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:40:08,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:40:08,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:40:08,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:40:08,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:40:08,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:40:08,619 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:40:08,619 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:40:08,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:40:08,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:40:08,619 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc [2021-12-06 23:40:08,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:40:08,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:40:08,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:40:08,827 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:40:08,828 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:40:08,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2021-12-06 23:40:08,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/data/a1c9b9852/b6c007a3922b4ec5be128a87fe0642da/FLAGfaf5706ba [2021-12-06 23:40:09,260 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:40:09,260 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2021-12-06 23:40:09,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/data/a1c9b9852/b6c007a3922b4ec5be128a87fe0642da/FLAGfaf5706ba [2021-12-06 23:40:09,279 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/data/a1c9b9852/b6c007a3922b4ec5be128a87fe0642da [2021-12-06 23:40:09,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:40:09,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:40:09,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:40:09,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:40:09,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:40:09,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee71d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09, skipping insertion in model container [2021-12-06 23:40:09,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:40:09,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:40:09,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2021-12-06 23:40:09,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:40:09,527 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:40:09,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2021-12-06 23:40:09,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:40:09,590 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:40:09,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09 WrapperNode [2021-12-06 23:40:09,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:40:09,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:40:09,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:40:09,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:40:09,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,630 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 23, calls inlined = 18, statements flattened = 231 [2021-12-06 23:40:09,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:40:09,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:40:09,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:40:09,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:40:09,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:40:09,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:40:09,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:40:09,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:40:09,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (1/1) ... [2021-12-06 23:40:09,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:40:09,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:40:09,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:40:09,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:40:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:40:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-06 23:40:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-06 23:40:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 23:40:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 23:40:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-06 23:40:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-06 23:40:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 23:40:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 23:40:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 23:40:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 23:40:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-06 23:40:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-06 23:40:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:40:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 23:40:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 23:40:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:40:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:40:09,766 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:40:09,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:40:10,001 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:40:10,009 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:40:10,009 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 23:40:10,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:40:10 BoogieIcfgContainer [2021-12-06 23:40:10,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:40:10,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:40:10,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:40:10,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:40:10,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:40:09" (1/3) ... [2021-12-06 23:40:10,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73255a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:40:10, skipping insertion in model container [2021-12-06 23:40:10,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:40:09" (2/3) ... [2021-12-06 23:40:10,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73255a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:40:10, skipping insertion in model container [2021-12-06 23:40:10,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:40:10" (3/3) ... [2021-12-06 23:40:10,020 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2021-12-06 23:40:10,025 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:40:10,025 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:40:10,062 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:40:10,068 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:40:10,068 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:40:10,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 63 states have (on average 1.380952380952381) internal successors, (87), 70 states have internal predecessors, (87), 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) [2021-12-06 23:40:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 23:40:10,090 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:40:10,091 INFO L514 BasicCegarLoop]: 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] [2021-12-06 23:40:10,091 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:40:10,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:40:10,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1897551925, now seen corresponding path program 1 times [2021-12-06 23:40:10,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:40:10,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952634690] [2021-12-06 23:40:10,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:40:10,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:40:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 23:40:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:40:10,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:40:10,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952634690] [2021-12-06 23:40:10,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952634690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:40:10,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:40:10,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:40:10,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018277435] [2021-12-06 23:40:10,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:40:10,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 23:40:10,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:40:10,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 23:40:10,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 23:40:10,314 INFO L87 Difference]: Start difference. First operand has 83 states, 63 states have (on average 1.380952380952381) internal successors, (87), 70 states have internal predecessors, (87), 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 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) [2021-12-06 23:40:10,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:40:10,339 INFO L93 Difference]: Finished difference Result 158 states and 213 transitions. [2021-12-06 23:40:10,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 23:40:10,340 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 [2021-12-06 23:40:10,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:40:10,347 INFO L225 Difference]: With dead ends: 158 [2021-12-06 23:40:10,347 INFO L226 Difference]: Without dead ends: 74 [2021-12-06 23:40:10,350 INFO L932 BasicCegarLoop]: 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 [2021-12-06 23:40:10,353 INFO L933 BasicCegarLoop]: 103 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, 103 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 [2021-12-06 23:40:10,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:40:10,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-06 23:40:10,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-12-06 23:40:10,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 62 states have internal predecessors, (73), 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) [2021-12-06 23:40:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2021-12-06 23:40:10,387 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 25 [2021-12-06 23:40:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:40:10,387 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2021-12-06 23:40:10,388 INFO L471 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) [2021-12-06 23:40:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2021-12-06 23:40:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-06 23:40:10,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:40:10,390 INFO L514 BasicCegarLoop]: 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] [2021-12-06 23:40:10,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:40:10,390 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:40:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:40:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1762188487, now seen corresponding path program 1 times [2021-12-06 23:40:10,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:40:10,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822401100] [2021-12-06 23:40:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:40:10,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:40:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 23:40:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:40:10,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:40:10,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822401100] [2021-12-06 23:40:10,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822401100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:40:10,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:40:10,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:40:10,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258955150] [2021-12-06 23:40:10,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:40:10,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:40:10,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:40:10,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:40:10,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:40:10,449 INFO L87 Difference]: Start difference. First operand 74 states and 94 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) [2021-12-06 23:40:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:40:10,461 INFO L93 Difference]: Finished difference Result 109 states and 137 transitions. [2021-12-06 23:40:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:40:10,461 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 [2021-12-06 23:40:10,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:40:10,462 INFO L225 Difference]: With dead ends: 109 [2021-12-06 23:40:10,462 INFO L226 Difference]: Without dead ends: 65 [2021-12-06 23:40:10,463 INFO L932 BasicCegarLoop]: 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 [2021-12-06 23:40:10,464 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 17 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 140 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 [2021-12-06 23:40:10,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:40:10,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-06 23:40:10,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-12-06 23:40:10,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.32) internal successors, (66), 56 states have internal predecessors, (66), 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) [2021-12-06 23:40:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2021-12-06 23:40:10,473 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 26 [2021-12-06 23:40:10,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:40:10,473 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2021-12-06 23:40:10,473 INFO L471 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) [2021-12-06 23:40:10,474 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2021-12-06 23:40:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 23:40:10,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:40:10,475 INFO L514 BasicCegarLoop]: 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] [2021-12-06 23:40:10,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:40:10,475 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:40:10,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:40:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash -731728748, now seen corresponding path program 1 times [2021-12-06 23:40:10,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:40:10,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960070941] [2021-12-06 23:40:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:40:10,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:40:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 23:40:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:40:10,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:40:10,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960070941] [2021-12-06 23:40:10,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960070941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:40:10,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:40:10,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:40:10,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44738982] [2021-12-06 23:40:10,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:40:10,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:40:10,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:40:10,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:40:10,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:40:10,529 INFO L87 Difference]: Start difference. First operand 65 states and 82 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:40:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:40:10,554 INFO L93 Difference]: Finished difference Result 179 states and 231 transitions. [2021-12-06 23:40:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:40:10,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-06 23:40:10,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:40:10,556 INFO L225 Difference]: With dead ends: 179 [2021-12-06 23:40:10,556 INFO L226 Difference]: Without dead ends: 121 [2021-12-06 23:40:10,557 INFO L932 BasicCegarLoop]: 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 [2021-12-06 23:40:10,558 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 74 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:40:10,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 175 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:40:10,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-12-06 23:40:10,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2021-12-06 23:40:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 89 states have (on average 1.348314606741573) internal successors, (120), 100 states have internal predecessors, (120), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-06 23:40:10,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 152 transitions. [2021-12-06 23:40:10,573 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 152 transitions. Word has length 31 [2021-12-06 23:40:10,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:40:10,574 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 152 transitions. [2021-12-06 23:40:10,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:40:10,574 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 152 transitions. [2021-12-06 23:40:10,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 23:40:10,575 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:40:10,575 INFO L514 BasicCegarLoop]: 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] [2021-12-06 23:40:10,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:40:10,576 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:40:10,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:40:10,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1906421771, now seen corresponding path program 1 times [2021-12-06 23:40:10,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:40:10,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94402235] [2021-12-06 23:40:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:40:10,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:40:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:40:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:40:10,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:40:10,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94402235] [2021-12-06 23:40:10,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94402235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:40:10,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:40:10,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:40:10,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142222292] [2021-12-06 23:40:10,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:40:10,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:40:10,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:40:10,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:40:10,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:40:10,636 INFO L87 Difference]: Start difference. First operand 118 states and 152 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) [2021-12-06 23:40:10,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:40:10,689 INFO L93 Difference]: Finished difference Result 334 states and 443 transitions. [2021-12-06 23:40:10,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:40:10,689 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 [2021-12-06 23:40:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:40:10,692 INFO L225 Difference]: With dead ends: 334 [2021-12-06 23:40:10,692 INFO L226 Difference]: Without dead ends: 223 [2021-12-06 23:40:10,693 INFO L932 BasicCegarLoop]: 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 [2021-12-06 23:40:10,695 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 52 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:40:10,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 327 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:40:10,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-12-06 23:40:10,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 217. [2021-12-06 23:40:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 181 states have internal predecessors, (216), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2021-12-06 23:40:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 282 transitions. [2021-12-06 23:40:10,718 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 282 transitions. Word has length 34 [2021-12-06 23:40:10,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:40:10,718 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 282 transitions. [2021-12-06 23:40:10,718 INFO L471 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) [2021-12-06 23:40:10,718 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 282 transitions. [2021-12-06 23:40:10,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 23:40:10,721 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:40:10,721 INFO L514 BasicCegarLoop]: 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] [2021-12-06 23:40:10,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:40:10,721 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:40:10,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:40:10,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1821874618, now seen corresponding path program 1 times [2021-12-06 23:40:10,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:40:10,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320602162] [2021-12-06 23:40:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:40:10,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:40:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 23:40:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:40:10,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:40:10,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320602162] [2021-12-06 23:40:10,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320602162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:40:10,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:40:10,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:40:10,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126068673] [2021-12-06 23:40:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:40:10,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:40:10,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:40:10,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:40:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:40:10,776 INFO L87 Difference]: Start difference. First operand 217 states and 282 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-12-06 23:40:10,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:40:10,867 INFO L93 Difference]: Finished difference Result 435 states and 583 transitions. [2021-12-06 23:40:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:40:10,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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 [2021-12-06 23:40:10,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:40:10,875 INFO L225 Difference]: With dead ends: 435 [2021-12-06 23:40:10,875 INFO L226 Difference]: Without dead ends: 324 [2021-12-06 23:40:10,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:40:10,877 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 117 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:40:10,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 604 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:40:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-12-06 23:40:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 314. [2021-12-06 23:40:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 235 states have (on average 1.327659574468085) internal successors, (312), 262 states have internal predecessors, (312), 46 states have call successors, (46), 34 states have call predecessors, (46), 32 states have return successors, (50), 29 states have call predecessors, (50), 46 states have call successors, (50) [2021-12-06 23:40:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 408 transitions. [2021-12-06 23:40:10,909 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 408 transitions. Word has length 36 [2021-12-06 23:40:10,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:40:10,910 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 408 transitions. [2021-12-06 23:40:10,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-12-06 23:40:10,910 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 408 transitions. [2021-12-06 23:40:10,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 23:40:10,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:40:10,913 INFO L514 BasicCegarLoop]: 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] [2021-12-06 23:40:10,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:40:10,914 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:40:10,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:40:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1985544869, now seen corresponding path program 1 times [2021-12-06 23:40:10,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:40:10,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555493519] [2021-12-06 23:40:10,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:40:10,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:40:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:40:10,936 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:40:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:40:10,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:40:10,979 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 23:40:10,980 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 23:40:10,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:40:10,985 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-06 23:40:10,988 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:40:11,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:40:11 BoogieIcfgContainer [2021-12-06 23:40:11,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:40:11,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:40:11,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:40:11,022 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:40:11,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:40:10" (3/4) ... [2021-12-06 23:40:11,024 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 23:40:11,066 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 23:40:11,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:40:11,066 INFO L158 Benchmark]: Toolchain (without parser) took 1784.36ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 71.5MB in the beginning and 96.3MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:40:11,067 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:40:11,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.68ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 80.4MB in the end (delta: -9.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-12-06 23:40:11,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.73ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 77.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:40:11,067 INFO L158 Benchmark]: Boogie Preprocessor took 21.32ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:40:11,068 INFO L158 Benchmark]: RCFGBuilder took 359.01ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 61.0MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 23:40:11,068 INFO L158 Benchmark]: TraceAbstraction took 1007.96ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 60.3MB in the beginning and 100.5MB in the end (delta: -40.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:40:11,068 INFO L158 Benchmark]: Witness Printer took 44.15ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 96.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 23:40:11,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.68ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 80.4MB in the end (delta: -9.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.73ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 77.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.32ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 359.01ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 61.0MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1007.96ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 60.3MB in the beginning and 100.5MB in the end (delta: -40.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.15ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 96.3MB 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: 555]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L99] int pumpRunning = 0; [L100] int systemActive = 1; [L366] int waterLevel = 1; [L367] int methaneLevelCritical = 0; [L455] int cleanupTimeShifts = 4; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] int retValue_acc ; [L529] int tmp ; [L533] FCALL select_helpers() [L534] FCALL select_features() [L535] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L535] RET, EXPR valid_product() [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) [L539] FCALL setup() [L540] CALL runTest() [L522] CALL test() [L297] int splverifierCounter ; [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L304] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L306] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L308] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L314] tmp = __VERIFIER_nondet_int() [L316] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L318] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L384] COND TRUE waterLevel < 2 [L385] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L318] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L324] tmp___0 = __VERIFIER_nondet_int() [L326] 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] [L334] tmp___2 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___2)) [L342] tmp___1 = __VERIFIER_nondet_int() [L344] COND TRUE \read(tmp___1) [L346] CALL stopSystem() [L273] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L280] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L346] RET stopSystem() [L353] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L114] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L122] CALL __utac_acc__Specification3_spec__1() [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L567] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L405] int retValue_acc ; [L408] retValue_acc = methaneLevelCritical [L409] 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] [L567] 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] [L567] tmp = isMethaneLevelCritical() [L569] COND FALSE !(\read(tmp)) [L573] CALL, EXPR getWaterLevel() [L437] int retValue_acc ; [L440] retValue_acc = waterLevel [L441] 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] [L573] RET, EXPR getWaterLevel() [L573] tmp___0 = getWaterLevel() [L575] COND TRUE tmp___0 == 2 [L577] CALL, EXPR isPumpRunning() [L206] int retValue_acc ; [L209] retValue_acc = pumpRunning [L210] 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] [L577] RET, EXPR isPumpRunning() [L577] tmp___1 = isPumpRunning() [L579] COND FALSE !(\read(tmp___1)) [L583] CALL __automaton_fail() [L555] 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 8 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 260 mSDsluCounter, 1349 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 820 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 529 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred 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, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 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! [2021-12-06 23:40:11,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dd9e28-83d7-40ec-a69c-fc2b43f989a9/bin/uautomizer-DrprNOufMa/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