./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R --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 12f35b53fa21b1b526c5ccefe7a49d52db3501fafceaddf16f789eadd54f272a --- 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-38b53e6 [2022-11-25 18:06:58,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:06:58,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:06:58,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:06:58,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:06:58,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:06:58,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:06:58,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:06:58,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:06:58,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:06:58,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:06:58,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:06:58,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:06:58,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:06:58,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:06:58,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:06:58,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:06:58,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:06:58,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:06:58,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:06:58,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:06:58,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:06:58,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:06:58,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:06:58,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:06:58,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:06:58,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:06:58,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:06:58,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:06:58,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:06:58,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:06:58,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:06:58,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:06:58,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:06:58,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:06:58,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:06:58,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:06:58,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:06:58,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:06:58,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:06:58,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:06:58,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:06:58,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:06:58,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:06:58,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:06:58,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:06:58,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:06:58,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:06:58,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:06:58,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:06:58,460 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:06:58,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:06:58,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:06:58,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:06:58,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:06:58,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:06:58,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:06:58,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:06:58,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:06:58,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:06:58,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:06:58,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:06:58,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:06:58,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:06:58,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:06:58,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:06:58,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:06:58,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:06:58,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:06:58,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:06:58,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:06:58,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:06:58,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:06:58,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:06:58,466 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:06:58,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:06:58,467 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12f35b53fa21b1b526c5ccefe7a49d52db3501fafceaddf16f789eadd54f272a [2022-11-25 18:06:58,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:06:58,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:06:58,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:06:58,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:06:58,830 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:06:58,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2022-11-25 18:07:01,930 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:07:02,210 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:07:02,211 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2022-11-25 18:07:02,261 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/data/904311b6a/fe8ea7fc829f4be6a567d2a5fbcd132b/FLAG5421597f7 [2022-11-25 18:07:02,280 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/data/904311b6a/fe8ea7fc829f4be6a567d2a5fbcd132b [2022-11-25 18:07:02,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:07:02,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:07:02,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:07:02,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:07:02,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:07:02,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fcc867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02, skipping insertion in model container [2022-11-25 18:07:02,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:07:02,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:07:02,547 WARN L237 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_e1fc95a1-4074-41e8-8c03-71b6363a721a/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[4000,4013] [2022-11-25 18:07:02,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:07:02,627 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:07:02,648 WARN L237 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_e1fc95a1-4074-41e8-8c03-71b6363a721a/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[4000,4013] [2022-11-25 18:07:02,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:07:02,709 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:07:02,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02 WrapperNode [2022-11-25 18:07:02,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:07:02,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:07:02,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:07:02,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:07:02,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,756 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 190 [2022-11-25 18:07:02,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:07:02,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:07:02,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:07:02,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:07:02,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,781 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:07:02,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:07:02,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:07:02,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:07:02,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (1/1) ... [2022-11-25 18:07:02,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:07:02,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:07:02,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:07:02,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:07:02,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:07:02,907 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-25 18:07:02,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-25 18:07:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-25 18:07:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-25 18:07:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-25 18:07:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-25 18:07:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-25 18:07:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-25 18:07:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:07:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-25 18:07:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-25 18:07:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:07:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:07:02,989 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:07:02,991 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:07:03,371 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:07:03,379 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:07:03,379 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:07:03,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:03 BoogieIcfgContainer [2022-11-25 18:07:03,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:07:03,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:07:03,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:07:03,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:07:03,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:07:02" (1/3) ... [2022-11-25 18:07:03,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740876a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:07:03, skipping insertion in model container [2022-11-25 18:07:03,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:02" (2/3) ... [2022-11-25 18:07:03,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740876a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:07:03, skipping insertion in model container [2022-11-25 18:07:03,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:03" (3/3) ... [2022-11-25 18:07:03,399 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2022-11-25 18:07:03,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:07:03,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:07:03,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:07:03,477 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;@27d7bbb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:07:03,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:07:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 18:07:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 18:07:03,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:03,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:03,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:03,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash 125055405, now seen corresponding path program 1 times [2022-11-25 18:07:03,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:03,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710778671] [2022-11-25 18:07:03,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:03,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:03,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:03,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710778671] [2022-11-25 18:07:03,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710778671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:03,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:03,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:07:03,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146180833] [2022-11-25 18:07:03,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:03,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:07:03,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:07:03,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:07:03,872 INFO L87 Difference]: Start difference. First operand has 74 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:03,929 INFO L93 Difference]: Finished difference Result 140 states and 193 transitions. [2022-11-25 18:07:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:07:03,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 18:07:03,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:03,945 INFO L225 Difference]: With dead ends: 140 [2022-11-25 18:07:03,945 INFO L226 Difference]: Without dead ends: 65 [2022-11-25 18:07:03,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:07:03,957 INFO L413 NwaCegarLoop]: 93 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, 93 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 [2022-11-25 18:07:03,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:07:03,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-25 18:07:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-25 18:07:04,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 57 states have internal predecessors, (69), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-25 18:07:04,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-11-25 18:07:04,024 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 19 [2022-11-25 18:07:04,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:04,025 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-11-25 18:07:04,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,026 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-11-25 18:07:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 18:07:04,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:04,029 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] [2022-11-25 18:07:04,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:07:04,030 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:04,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:04,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1087845428, now seen corresponding path program 1 times [2022-11-25 18:07:04,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:04,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988339561] [2022-11-25 18:07:04,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:04,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:04,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:04,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988339561] [2022-11-25 18:07:04,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988339561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:04,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:04,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:07:04,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091491339] [2022-11-25 18:07:04,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:04,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:07:04,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:04,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:07:04,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:07:04,187 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:04,208 INFO L93 Difference]: Finished difference Result 96 states and 124 transitions. [2022-11-25 18:07:04,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:07:04,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 18:07:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:04,214 INFO L225 Difference]: With dead ends: 96 [2022-11-25 18:07:04,215 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 18:07:04,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:07:04,220 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 12 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 126 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 [2022-11-25 18:07:04,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:07:04,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 18:07:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-25 18:07:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 51 states have internal predecessors, (62), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:07:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2022-11-25 18:07:04,229 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 20 [2022-11-25 18:07:04,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:04,230 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2022-11-25 18:07:04,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,230 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2022-11-25 18:07:04,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 18:07:04,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:04,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:04,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:07:04,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:04,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:04,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1276159455, now seen corresponding path program 1 times [2022-11-25 18:07:04,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:04,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851470448] [2022-11-25 18:07:04,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:04,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:04,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:04,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851470448] [2022-11-25 18:07:04,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851470448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:04,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:04,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:07:04,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100663139] [2022-11-25 18:07:04,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:04,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:07:04,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:04,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:07:04,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:07:04,365 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:04,387 INFO L93 Difference]: Finished difference Result 105 states and 138 transitions. [2022-11-25 18:07:04,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:07:04,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-25 18:07:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:04,389 INFO L225 Difference]: With dead ends: 105 [2022-11-25 18:07:04,390 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 18:07:04,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:07:04,391 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 70 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 [2022-11-25 18:07:04,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:07:04,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 18:07:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-25 18:07:04,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.326086956521739) internal successors, (61), 51 states have internal predecessors, (61), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:07:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2022-11-25 18:07:04,404 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 24 [2022-11-25 18:07:04,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:04,405 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2022-11-25 18:07:04,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2022-11-25 18:07:04,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 18:07:04,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:04,408 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] [2022-11-25 18:07:04,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:07:04,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:04,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:04,414 INFO L85 PathProgramCache]: Analyzing trace with hash -384200528, now seen corresponding path program 1 times [2022-11-25 18:07:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:04,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026884713] [2022-11-25 18:07:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:04,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 18:07:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:04,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:04,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026884713] [2022-11-25 18:07:04,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026884713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:04,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:04,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:07:04,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488603409] [2022-11-25 18:07:04,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:04,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:07:04,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:04,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:07:04,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:07:04,569 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-11-25 18:07:04,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:04,602 INFO L93 Difference]: Finished difference Result 140 states and 182 transitions. [2022-11-25 18:07:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:07:04,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2022-11-25 18:07:04,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:04,604 INFO L225 Difference]: With dead ends: 140 [2022-11-25 18:07:04,604 INFO L226 Difference]: Without dead ends: 91 [2022-11-25 18:07:04,605 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 [2022-11-25 18:07:04,606 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 45 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:04,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 117 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:07:04,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-25 18:07:04,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2022-11-25 18:07:04,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 79 states have internal predecessors, (95), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-11-25 18:07:04,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2022-11-25 18:07:04,623 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 29 [2022-11-25 18:07:04,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:04,624 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2022-11-25 18:07:04,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-11-25 18:07:04,624 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2022-11-25 18:07:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 18:07:04,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:04,626 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] [2022-11-25 18:07:04,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:07:04,626 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:04,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash 234187366, now seen corresponding path program 1 times [2022-11-25 18:07:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:04,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976003685] [2022-11-25 18:07:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:07:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:04,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:04,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:04,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976003685] [2022-11-25 18:07:04,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976003685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:04,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:04,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:07:04,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235081760] [2022-11-25 18:07:04,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:04,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:07:04,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:04,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:07:04,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:07:04,786 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:07:04,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:04,840 INFO L93 Difference]: Finished difference Result 203 states and 264 transitions. [2022-11-25 18:07:04,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:07:04,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 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 35 [2022-11-25 18:07:04,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:04,846 INFO L225 Difference]: With dead ends: 203 [2022-11-25 18:07:04,848 INFO L226 Difference]: Without dead ends: 121 [2022-11-25 18:07:04,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:07:04,853 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 45 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:04,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 204 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:07:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-25 18:07:04,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 91. [2022-11-25 18:07:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 81 states have internal predecessors, (97), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-11-25 18:07:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 115 transitions. [2022-11-25 18:07:04,886 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 115 transitions. Word has length 35 [2022-11-25 18:07:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:04,886 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 115 transitions. [2022-11-25 18:07:04,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:07:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 115 transitions. [2022-11-25 18:07:04,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 18:07:04,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:04,889 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] [2022-11-25 18:07:04,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:07:04,890 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1245304616, now seen corresponding path program 1 times [2022-11-25 18:07:04,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:04,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786536306] [2022-11-25 18:07:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:04,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:05,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:07:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:05,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:05,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786536306] [2022-11-25 18:07:05,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786536306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:05,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:05,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:07:05,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853793377] [2022-11-25 18:07:05,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:05,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:07:05,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:05,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:07:05,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:07:05,060 INFO L87 Difference]: Start difference. First operand 91 states and 115 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-25 18:07:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:05,297 INFO L93 Difference]: Finished difference Result 335 states and 462 transitions. [2022-11-25 18:07:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:07:05,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 35 [2022-11-25 18:07:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:05,301 INFO L225 Difference]: With dead ends: 335 [2022-11-25 18:07:05,301 INFO L226 Difference]: Without dead ends: 251 [2022-11-25 18:07:05,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:07:05,311 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 141 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:05,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 384 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:07:05,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-25 18:07:05,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 241. [2022-11-25 18:07:05,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 194 states have (on average 1.2989690721649485) internal successors, (252), 213 states have internal predecessors, (252), 22 states have call successors, (22), 22 states have call predecessors, (22), 24 states have return successors, (42), 24 states have call predecessors, (42), 22 states have call successors, (42) [2022-11-25 18:07:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 316 transitions. [2022-11-25 18:07:05,379 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 316 transitions. Word has length 35 [2022-11-25 18:07:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:05,381 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 316 transitions. [2022-11-25 18:07:05,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-25 18:07:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 316 transitions. [2022-11-25 18:07:05,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 18:07:05,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:05,387 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, 1] [2022-11-25 18:07:05,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:07:05,388 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:05,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:05,388 INFO L85 PathProgramCache]: Analyzing trace with hash -2121318334, now seen corresponding path program 1 times [2022-11-25 18:07:05,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:05,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862232669] [2022-11-25 18:07:05,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:05,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 18:07:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 18:07:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:05,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:05,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862232669] [2022-11-25 18:07:05,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862232669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:05,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:05,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:07:05,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344986361] [2022-11-25 18:07:05,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:05,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:07:05,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:07:05,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:07:05,478 INFO L87 Difference]: Start difference. First operand 241 states and 316 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:07:05,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:05,702 INFO L93 Difference]: Finished difference Result 318 states and 413 transitions. [2022-11-25 18:07:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:07:05,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 3 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 39 [2022-11-25 18:07:05,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:05,706 INFO L225 Difference]: With dead ends: 318 [2022-11-25 18:07:05,706 INFO L226 Difference]: Without dead ends: 316 [2022-11-25 18:07:05,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:05,707 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 115 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:05,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 319 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:07:05,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-11-25 18:07:05,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 302. [2022-11-25 18:07:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 248 states have (on average 1.2701612903225807) internal successors, (315), 274 states have internal predecessors, (315), 25 states have call successors, (25), 22 states have call predecessors, (25), 28 states have return successors, (51), 27 states have call predecessors, (51), 25 states have call successors, (51) [2022-11-25 18:07:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 391 transitions. [2022-11-25 18:07:05,778 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 391 transitions. Word has length 39 [2022-11-25 18:07:05,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:05,780 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 391 transitions. [2022-11-25 18:07:05,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:07:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 391 transitions. [2022-11-25 18:07:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 18:07:05,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:05,787 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, 1, 1, 1] [2022-11-25 18:07:05,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:07:05,787 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:05,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:05,788 INFO L85 PathProgramCache]: Analyzing trace with hash 113843845, now seen corresponding path program 1 times [2022-11-25 18:07:05,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:05,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968470220] [2022-11-25 18:07:05,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:05,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:05,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 18:07:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:05,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:05,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:05,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968470220] [2022-11-25 18:07:05,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968470220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:05,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:05,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:07:05,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925217255] [2022-11-25 18:07:05,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:05,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:07:05,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:05,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:07:05,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:07:05,935 INFO L87 Difference]: Start difference. First operand 302 states and 391 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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) [2022-11-25 18:07:06,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:06,157 INFO L93 Difference]: Finished difference Result 641 states and 861 transitions. [2022-11-25 18:07:06,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:07:06,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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 41 [2022-11-25 18:07:06,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:06,162 INFO L225 Difference]: With dead ends: 641 [2022-11-25 18:07:06,162 INFO L226 Difference]: Without dead ends: 346 [2022-11-25 18:07:06,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:06,166 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 129 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:06,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 312 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:07:06,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-25 18:07:06,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 299. [2022-11-25 18:07:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 245 states have (on average 1.2571428571428571) internal successors, (308), 267 states have internal predecessors, (308), 25 states have call successors, (25), 22 states have call predecessors, (25), 28 states have return successors, (50), 27 states have call predecessors, (50), 25 states have call successors, (50) [2022-11-25 18:07:06,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 383 transitions. [2022-11-25 18:07:06,229 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 383 transitions. Word has length 41 [2022-11-25 18:07:06,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:06,230 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 383 transitions. [2022-11-25 18:07:06,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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) [2022-11-25 18:07:06,230 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 383 transitions. [2022-11-25 18:07:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 18:07:06,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:06,233 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-25 18:07:06,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:07:06,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:06,234 INFO L85 PathProgramCache]: Analyzing trace with hash 538402958, now seen corresponding path program 1 times [2022-11-25 18:07:06,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:06,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899060763] [2022-11-25 18:07:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:06,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 18:07:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 18:07:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:06,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:06,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:06,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899060763] [2022-11-25 18:07:06,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899060763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:06,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:06,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:07:06,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505864873] [2022-11-25 18:07:06,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:06,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:07:06,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:06,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:07:06,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:07:06,464 INFO L87 Difference]: Start difference. First operand 299 states and 383 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:07:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:06,663 INFO L93 Difference]: Finished difference Result 567 states and 719 transitions. [2022-11-25 18:07:06,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:07:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2022-11-25 18:07:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:06,666 INFO L225 Difference]: With dead ends: 567 [2022-11-25 18:07:06,666 INFO L226 Difference]: Without dead ends: 275 [2022-11-25 18:07:06,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:06,668 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 103 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:06,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 274 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:07:06,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-25 18:07:06,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2022-11-25 18:07:06,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 224 states have (on average 1.21875) internal successors, (273), 242 states have internal predecessors, (273), 22 states have call successors, (22), 19 states have call predecessors, (22), 26 states have return successors, (42), 23 states have call predecessors, (42), 22 states have call successors, (42) [2022-11-25 18:07:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 337 transitions. [2022-11-25 18:07:06,721 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 337 transitions. Word has length 61 [2022-11-25 18:07:06,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:06,722 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 337 transitions. [2022-11-25 18:07:06,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:07:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 337 transitions. [2022-11-25 18:07:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 18:07:06,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:06,725 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-25 18:07:06,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:07:06,725 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:06,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:06,726 INFO L85 PathProgramCache]: Analyzing trace with hash 960970024, now seen corresponding path program 1 times [2022-11-25 18:07:06,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:06,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490123714] [2022-11-25 18:07:06,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:06,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 18:07:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 18:07:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 18:07:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:06,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:06,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490123714] [2022-11-25 18:07:06,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490123714] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:07:06,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095476287] [2022-11-25 18:07:06,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:06,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:07:06,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:07:06,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:07:06,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:07:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:07,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 18:07:07,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:07:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:07,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:07:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:07,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095476287] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:07:07,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:07:07,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 8 [2022-11-25 18:07:07,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913403110] [2022-11-25 18:07:07,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:07:07,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:07:07,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:07,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:07:07,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:07:07,344 INFO L87 Difference]: Start difference. First operand 273 states and 337 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:07:07,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:07,803 INFO L93 Difference]: Finished difference Result 594 states and 786 transitions. [2022-11-25 18:07:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:07:07,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 65 [2022-11-25 18:07:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:07,807 INFO L225 Difference]: With dead ends: 594 [2022-11-25 18:07:07,807 INFO L226 Difference]: Without dead ends: 363 [2022-11-25 18:07:07,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:07,810 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 230 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:07,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 433 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 18:07:07,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-25 18:07:07,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 335. [2022-11-25 18:07:07,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 271 states have (on average 1.2287822878228782) internal successors, (333), 292 states have internal predecessors, (333), 31 states have call successors, (31), 28 states have call predecessors, (31), 32 states have return successors, (58), 28 states have call predecessors, (58), 31 states have call successors, (58) [2022-11-25 18:07:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 422 transitions. [2022-11-25 18:07:07,852 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 422 transitions. Word has length 65 [2022-11-25 18:07:07,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:07,853 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 422 transitions. [2022-11-25 18:07:07,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:07:07,855 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 422 transitions. [2022-11-25 18:07:07,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 18:07:07,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:07,857 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-25 18:07:07,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:07:08,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 18:07:08,068 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:07:08,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:08,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1753618127, now seen corresponding path program 2 times [2022-11-25 18:07:08,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:08,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832130144] [2022-11-25 18:07:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:08,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:07:08,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:07:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:07:08,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:07:08,126 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:07:08,128 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:07:08,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:07:08,133 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:08,136 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:07:08,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:07:08 BoogieIcfgContainer [2022-11-25 18:07:08,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:07:08,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:07:08,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:07:08,203 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:07:08,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:03" (3/4) ... [2022-11-25 18:07:08,206 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 18:07:08,333 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:07:08,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:07:08,334 INFO L158 Benchmark]: Toolchain (without parser) took 6049.88ms. Allocated memory was 151.0MB in the beginning and 255.9MB in the end (delta: 104.9MB). Free memory was 124.0MB in the beginning and 221.4MB in the end (delta: -97.4MB). Peak memory consumption was 134.7MB. Max. memory is 16.1GB. [2022-11-25 18:07:08,334 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:07:08,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.76ms. Allocated memory is still 151.0MB. Free memory was 123.6MB in the beginning and 105.1MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:07:08,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.99ms. Allocated memory is still 151.0MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:07:08,335 INFO L158 Benchmark]: Boogie Preprocessor took 46.61ms. Allocated memory is still 151.0MB. Free memory was 103.0MB in the beginning and 101.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:07:08,335 INFO L158 Benchmark]: RCFGBuilder took 576.97ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 85.8MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:07:08,336 INFO L158 Benchmark]: TraceAbstraction took 4810.71ms. Allocated memory was 151.0MB in the beginning and 255.9MB in the end (delta: 104.9MB). Free memory was 85.0MB in the beginning and 98.3MB in the end (delta: -13.4MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. [2022-11-25 18:07:08,337 INFO L158 Benchmark]: Witness Printer took 130.32ms. Allocated memory is still 255.9MB. Free memory was 98.3MB in the beginning and 221.4MB in the end (delta: -123.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:07:08,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.76ms. Allocated memory is still 151.0MB. Free memory was 123.6MB in the beginning and 105.1MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.99ms. Allocated memory is still 151.0MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.61ms. Allocated memory is still 151.0MB. Free memory was 103.0MB in the beginning and 101.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 576.97ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 85.8MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4810.71ms. Allocated memory was 151.0MB in the beginning and 255.9MB in the end (delta: 104.9MB). Free memory was 85.0MB in the beginning and 98.3MB in the end (delta: -13.4MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. * Witness Printer took 130.32ms. Allocated memory is still 255.9MB. Free memory was 98.3MB in the beginning and 221.4MB in the end (delta: -123.0MB). 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: 221]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L395] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int pumpRunning = 0; [L663] int systemActive = 1; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L595] int splverifierCounter ; [L596] int tmp ; [L597] int tmp___0 ; [L598] int tmp___1 ; [L599] int tmp___2 ; [L602] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L612] tmp = __VERIFIER_nondet_int() [L614] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L616] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L616] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] 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] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L647] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] COND TRUE ! pumpRunning [L703] CALL, EXPR isHighWaterLevel() [L813] int retValue_acc ; [L814] int tmp ; [L815] int tmp___0 ; [L819] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] 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=1, waterLevel=2] [L819] RET, EXPR isHighWaterSensorDry() [L819] tmp = isHighWaterSensorDry() [L821] COND FALSE !(\read(tmp)) [L824] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L826] retValue_acc = tmp___0 [L827] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L703] RET, EXPR isHighWaterLevel() [L703] tmp = isHighWaterLevel() [L705] COND TRUE \read(tmp) [L707] CALL activatePump() [L732] int tmp ; [L736] CALL, EXPR isMethaneAlarm() [L757] int retValue_acc ; [L761] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] 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=1, waterLevel=2] [L761] RET, EXPR isMethaneLevelCritical() [L761] retValue_acc = isMethaneLevelCritical() [L763] 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=1, waterLevel=2] [L736] RET, EXPR isMethaneAlarm() [L736] tmp = isMethaneAlarm() [L738] COND FALSE !(\read(tmp)) [L742] CALL activatePump__wrappee__highWaterSensor() [L726] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L742] RET activatePump__wrappee__highWaterSensor() [L707] RET activatePump() [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification4_spec__1() [L154] int tmp ; [L155] int tmp___0 ; [L159] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L159] RET, EXPR getWaterLevel() [L159] tmp = getWaterLevel() [L161] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L684] RET __utac_acc__Specification4_spec__1() [L647] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L612] tmp = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L647] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L669] COND TRUE \read(pumpRunning) [L671] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L671] RET lowerWaterLevel() [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L701] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L716] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification4_spec__1() [L154] int tmp ; [L155] int tmp___0 ; [L159] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L159] RET, EXPR getWaterLevel() [L159] tmp = getWaterLevel() [L161] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L684] RET __utac_acc__Specification4_spec__1() [L647] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L612] tmp = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L647] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L669] COND TRUE \read(pumpRunning) [L671] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L671] RET lowerWaterLevel() [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L701] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L716] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification4_spec__1() [L154] int tmp ; [L155] int tmp___0 ; [L159] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L159] RET, EXPR getWaterLevel() [L159] tmp = getWaterLevel() [L161] COND TRUE tmp == 0 [L163] CALL, EXPR isPumpRunning() [L768] int retValue_acc ; [L771] retValue_acc = pumpRunning [L772] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L163] RET, EXPR isPumpRunning() [L163] tmp___0 = isPumpRunning() [L165] COND TRUE \read(tmp___0) [L167] CALL __automaton_fail() [L221] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 890 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 874 mSDsluCounter, 2332 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1577 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 615 IncrementalHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 755 mSDtfsCounter, 615 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 164 SyntacticMatches, 7 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=10, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 133 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 522 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 1060 SizeOfPredicates, 4 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 51/64 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! [2022-11-25 18:07:08,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fc95a1-4074-41e8-8c03-71b6363a721a/bin/uautomizer-ZsLfNo2U6R/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