./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8 --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 e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:15:27,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:15:27,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:15:27,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:15:27,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:15:27,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:15:27,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:15:27,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:15:27,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:15:27,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:15:27,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:15:27,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:15:27,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:15:27,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:15:27,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:15:27,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:15:27,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:15:27,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:15:27,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:15:27,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:15:27,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:15:27,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:15:27,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:15:27,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:15:27,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:15:27,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:15:27,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:15:27,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:15:27,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:15:27,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:15:27,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:15:27,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:15:27,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:15:27,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:15:27,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:15:27,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:15:27,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:15:27,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:15:27,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:15:27,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:15:27,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:15:27,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:15:27,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:15:27,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:15:27,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:15:27,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:15:27,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:15:27,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:15:27,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:15:27,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:15:27,501 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:15:27,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:15:27,502 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:15:27,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:15:27,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:15:27,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:15:27,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:15:27,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:15:27,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:15:27,506 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:15:27,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:15:27,507 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:15:27,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:15:27,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:15:27,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:15:27,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:15:27,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:15:27,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:15:27,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:15:27,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:15:27,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:15:27,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:15:27,511 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:15:27,511 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:15:27,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:15:27,512 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_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2022-11-16 11:15:27,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:15:27,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:15:27,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:15:27,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:15:27,830 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:15:27,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2022-11-16 11:15:27,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/data/d382ee8eb/2ac0f8e4d52a4b2f84e8fedef50cc5f2/FLAG2ff083057 [2022-11-16 11:15:28,483 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:15:28,484 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2022-11-16 11:15:28,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/data/d382ee8eb/2ac0f8e4d52a4b2f84e8fedef50cc5f2/FLAG2ff083057 [2022-11-16 11:15:28,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/data/d382ee8eb/2ac0f8e4d52a4b2f84e8fedef50cc5f2 [2022-11-16 11:15:28,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:15:28,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:15:28,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:15:28,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:15:28,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:15:28,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:15:28" (1/1) ... [2022-11-16 11:15:28,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b32e3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:28, skipping insertion in model container [2022-11-16 11:15:28,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:15:28" (1/1) ... [2022-11-16 11:15:28,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:15:28,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:15:29,115 WARN L229 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_f0062526-f3be-46b1-8ef1-937b7dad994f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2022-11-16 11:15:29,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:15:29,168 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:15:29,206 WARN L229 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_f0062526-f3be-46b1-8ef1-937b7dad994f/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2022-11-16 11:15:29,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:15:29,298 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:15:29,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29 WrapperNode [2022-11-16 11:15:29,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:15:29,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:15:29,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:15:29,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:15:29,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,373 INFO L138 Inliner]: procedures = 53, calls = 152, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 236 [2022-11-16 11:15:29,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:15:29,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:15:29,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:15:29,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:15:29,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,405 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:15:29,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:15:29,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:15:29,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:15:29,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (1/1) ... [2022-11-16 11:15:29,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:15:29,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:29,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:15:29,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:15:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:15:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-16 11:15:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-16 11:15:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-16 11:15:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-16 11:15:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 11:15:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 11:15:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 11:15:29,529 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 11:15:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 11:15:29,529 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 11:15:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:15:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 11:15:29,530 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 11:15:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:15:29,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:15:29,639 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:15:29,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:15:29,985 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:15:29,991 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:15:29,992 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 11:15:29,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:15:29 BoogieIcfgContainer [2022-11-16 11:15:29,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:15:29,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:15:29,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:15:30,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:15:30,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:15:28" (1/3) ... [2022-11-16 11:15:30,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1348cc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:15:30, skipping insertion in model container [2022-11-16 11:15:30,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:29" (2/3) ... [2022-11-16 11:15:30,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1348cc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:15:30, skipping insertion in model container [2022-11-16 11:15:30,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:15:29" (3/3) ... [2022-11-16 11:15:30,007 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2022-11-16 11:15:30,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:15:30,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:15:30,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:15:30,120 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f3f8b88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:15:30,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:15:30,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-16 11:15:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 11:15:30,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:30,137 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] [2022-11-16 11:15:30,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:30,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:30,144 INFO L85 PathProgramCache]: Analyzing trace with hash -815916640, now seen corresponding path program 1 times [2022-11-16 11:15:30,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:30,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417724650] [2022-11-16 11:15:30,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:30,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:30,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:15:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:30,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:30,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417724650] [2022-11-16 11:15:30,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417724650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:30,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:30,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:15:30,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399337257] [2022-11-16 11:15:30,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:30,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:15:30,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:30,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:15:30,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:15:30,500 INFO L87 Difference]: Start difference. First operand has 80 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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) [2022-11-16 11:15:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:30,540 INFO L93 Difference]: Finished difference Result 152 states and 207 transitions. [2022-11-16 11:15:30,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:15:30,544 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 [2022-11-16 11:15:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:30,554 INFO L225 Difference]: With dead ends: 152 [2022-11-16 11:15:30,555 INFO L226 Difference]: Without dead ends: 71 [2022-11-16 11:15:30,562 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 [2022-11-16 11:15:30,565 INFO L413 NwaCegarLoop]: 100 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, 100 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 [2022-11-16 11:15:30,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:15:30,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-16 11:15:30,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-16 11:15:30,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 61 states have internal predecessors, (74), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 11:15:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2022-11-16 11:15:30,624 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 25 [2022-11-16 11:15:30,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:30,625 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2022-11-16 11:15:30,625 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) [2022-11-16 11:15:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2022-11-16 11:15:30,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 11:15:30,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:30,628 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] [2022-11-16 11:15:30,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:15:30,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:30,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:30,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1245391523, now seen corresponding path program 1 times [2022-11-16 11:15:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:30,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586606966] [2022-11-16 11:15:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:30,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 11:15:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:30,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:30,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586606966] [2022-11-16 11:15:30,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586606966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:30,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:30,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:15:30,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631580178] [2022-11-16 11:15:30,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:30,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:30,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:30,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:30,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:30,885 INFO L87 Difference]: Start difference. First operand 71 states and 91 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) [2022-11-16 11:15:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:30,903 INFO L93 Difference]: Finished difference Result 104 states and 133 transitions. [2022-11-16 11:15:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:30,904 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 [2022-11-16 11:15:30,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:30,909 INFO L225 Difference]: With dead ends: 104 [2022-11-16 11:15:30,912 INFO L226 Difference]: Without dead ends: 62 [2022-11-16 11:15:30,914 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 [2022-11-16 11:15:30,916 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 17 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 135 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 [2022-11-16 11:15:30,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:15:30,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-16 11:15:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-16 11:15:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 50 states have (on average 1.34) internal successors, (67), 55 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 11:15:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-11-16 11:15:30,932 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 26 [2022-11-16 11:15:30,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:30,933 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-11-16 11:15:30,934 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) [2022-11-16 11:15:30,934 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-11-16 11:15:30,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 11:15:30,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:30,937 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] [2022-11-16 11:15:30,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:15:30,938 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:30,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:30,939 INFO L85 PathProgramCache]: Analyzing trace with hash -552576222, now seen corresponding path program 1 times [2022-11-16 11:15:30,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:30,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610189879] [2022-11-16 11:15:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:30,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:15:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:31,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:31,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610189879] [2022-11-16 11:15:31,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610189879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:31,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:31,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:15:31,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419786302] [2022-11-16 11:15:31,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:31,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:31,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:31,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:31,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:31,103 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2022-11-16 11:15:31,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:31,137 INFO L93 Difference]: Finished difference Result 171 states and 223 transitions. [2022-11-16 11:15:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:31,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 [2022-11-16 11:15:31,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:31,143 INFO L225 Difference]: With dead ends: 171 [2022-11-16 11:15:31,143 INFO L226 Difference]: Without dead ends: 116 [2022-11-16 11:15:31,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:31,153 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 59 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:31,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 169 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:15:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-16 11:15:31,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2022-11-16 11:15:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 97 states have internal predecessors, (120), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-16 11:15:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 144 transitions. [2022-11-16 11:15:31,207 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 144 transitions. Word has length 30 [2022-11-16 11:15:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:31,207 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 144 transitions. [2022-11-16 11:15:31,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2022-11-16 11:15:31,208 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 144 transitions. [2022-11-16 11:15:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 11:15:31,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:31,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:31,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:15:31,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:31,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:31,214 INFO L85 PathProgramCache]: Analyzing trace with hash -551449311, now seen corresponding path program 1 times [2022-11-16 11:15:31,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:31,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096652485] [2022-11-16 11:15:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:31,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:15:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 11:15:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:31,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:31,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096652485] [2022-11-16 11:15:31,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096652485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:31,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:31,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:15:31,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074112981] [2022-11-16 11:15:31,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:31,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:31,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:31,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:31,332 INFO L87 Difference]: Start difference. First operand 111 states and 144 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:31,396 INFO L93 Difference]: Finished difference Result 294 states and 389 transitions. [2022-11-16 11:15:31,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:31,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-11-16 11:15:31,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:31,400 INFO L225 Difference]: With dead ends: 294 [2022-11-16 11:15:31,400 INFO L226 Difference]: Without dead ends: 190 [2022-11-16 11:15:31,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:31,402 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 67 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:31,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 133 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:15:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-16 11:15:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2022-11-16 11:15:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 147 states have (on average 1.346938775510204) internal successors, (198), 158 states have internal predecessors, (198), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2022-11-16 11:15:31,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 242 transitions. [2022-11-16 11:15:31,461 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 242 transitions. Word has length 35 [2022-11-16 11:15:31,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:31,462 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 242 transitions. [2022-11-16 11:15:31,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 242 transitions. [2022-11-16 11:15:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 11:15:31,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:31,472 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] [2022-11-16 11:15:31,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:15:31,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:31,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:31,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1364338089, now seen corresponding path program 1 times [2022-11-16 11:15:31,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:31,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449034907] [2022-11-16 11:15:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:31,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:31,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:15:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:31,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:31,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449034907] [2022-11-16 11:15:31,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449034907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:31,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:31,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:15:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354561744] [2022-11-16 11:15:31,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:31,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:15:31,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:15:31,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:15:31,674 INFO L87 Difference]: Start difference. First operand 188 states and 242 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) [2022-11-16 11:15:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:31,762 INFO L93 Difference]: Finished difference Result 532 states and 712 transitions. [2022-11-16 11:15:31,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:15:31,764 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 [2022-11-16 11:15:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:31,767 INFO L225 Difference]: With dead ends: 532 [2022-11-16 11:15:31,767 INFO L226 Difference]: Without dead ends: 351 [2022-11-16 11:15:31,768 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 [2022-11-16 11:15:31,769 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 45 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 305 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 [2022-11-16 11:15:31,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 305 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:15:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-11-16 11:15:31,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 339. [2022-11-16 11:15:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 266 states have (on average 1.3120300751879699) internal successors, (349), 281 states have internal predecessors, (349), 38 states have call successors, (38), 38 states have call predecessors, (38), 34 states have return successors, (50), 34 states have call predecessors, (50), 38 states have call successors, (50) [2022-11-16 11:15:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 437 transitions. [2022-11-16 11:15:31,831 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 437 transitions. Word has length 34 [2022-11-16 11:15:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:31,832 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 437 transitions. [2022-11-16 11:15:31,843 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) [2022-11-16 11:15:31,843 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 437 transitions. [2022-11-16 11:15:31,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 11:15:31,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:31,845 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] [2022-11-16 11:15:31,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:15:31,845 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:31,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:31,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1002526275, now seen corresponding path program 1 times [2022-11-16 11:15:31,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:31,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696632583] [2022-11-16 11:15:31,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:31,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:15:31,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:15:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:15:31,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:15:31,935 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:15:31,936 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:15:31,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:15:31,941 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 11:15:31,945 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:15:32,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:15:32 BoogieIcfgContainer [2022-11-16 11:15:32,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:15:32,015 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:15:32,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:15:32,016 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:15:32,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:15:29" (3/4) ... [2022-11-16 11:15:32,018 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 11:15:32,100 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:15:32,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:15:32,101 INFO L158 Benchmark]: Toolchain (without parser) took 3283.98ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 88.1MB in the beginning and 112.1MB in the end (delta: -23.9MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-11-16 11:15:32,102 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory was 35.9MB in the beginning and 35.8MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:15:32,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.23ms. Allocated memory is still 119.5MB. Free memory was 88.1MB in the beginning and 86.8MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:15:32,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.58ms. Allocated memory is still 119.5MB. Free memory was 86.3MB in the beginning and 84.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:15:32,103 INFO L158 Benchmark]: Boogie Preprocessor took 50.14ms. Allocated memory is still 119.5MB. Free memory was 84.2MB in the beginning and 82.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:15:32,103 INFO L158 Benchmark]: RCFGBuilder took 569.03ms. Allocated memory is still 119.5MB. Free memory was 82.5MB in the beginning and 64.2MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 11:15:32,103 INFO L158 Benchmark]: TraceAbstraction took 2018.91ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 63.7MB in the beginning and 116.3MB in the end (delta: -52.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:15:32,104 INFO L158 Benchmark]: Witness Printer took 84.97ms. Allocated memory is still 153.1MB. Free memory was 116.3MB in the beginning and 112.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:15:32,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory was 35.9MB in the beginning and 35.8MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.23ms. Allocated memory is still 119.5MB. Free memory was 88.1MB in the beginning and 86.8MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.58ms. Allocated memory is still 119.5MB. Free memory was 86.3MB in the beginning and 84.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.14ms. Allocated memory is still 119.5MB. Free memory was 84.2MB in the beginning and 82.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 569.03ms. Allocated memory is still 119.5MB. Free memory was 82.5MB in the beginning and 64.2MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2018.91ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 63.7MB in the beginning and 116.3MB in the end (delta: -52.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.97ms. Allocated memory is still 153.1MB. Free memory was 116.3MB in the beginning and 112.1MB 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: 566]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L740] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L434] int methaneLevelCritical = 0; [L130] int pumpRunning = 0; [L433] int waterLevel = 1; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L410] int retValue_acc ; [L411] int tmp ; [L415] FCALL select_helpers() [L416] FCALL select_features() [L417] CALL, EXPR valid_product() [L553] int retValue_acc ; [L556] retValue_acc = 1 [L557] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L417] RET, EXPR valid_product() [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) [L421] FCALL setup() [L422] CALL runTest() [L401] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L77] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L451] COND TRUE waterLevel < 2 [L452] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] 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] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L99] tmp___1 = __VERIFIER_nondet_int() [L101] COND TRUE \read(tmp___1) [L103] CALL stopSystem() [L286] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L103] RET stopSystem() [L110] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L145] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L153] CALL __utac_acc__Specification3_spec__1() [L301] int tmp ; [L302] int tmp___0 ; [L303] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] 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] [L307] 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] [L307] tmp = isMethaneLevelCritical() [L309] COND FALSE !(\read(tmp)) [L313] CALL, EXPR getWaterLevel() [L504] int retValue_acc ; [L507] retValue_acc = waterLevel [L508] 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] [L313] RET, EXPR getWaterLevel() [L313] tmp___0 = getWaterLevel() [L315] COND TRUE tmp___0 == 2 [L317] CALL, EXPR isPumpRunning() [L219] int retValue_acc ; [L222] retValue_acc = pumpRunning [L223] 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] [L317] RET, EXPR isPumpRunning() [L317] tmp___1 = isPumpRunning() [L319] COND FALSE !(\read(tmp___1)) [L323] CALL __automaton_fail() [L566] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 842 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 402 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 440 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=5, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 241 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! [2022-11-16 11:15:32,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0062526-f3be-46b1-8ef1-937b7dad994f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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