./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/triangular-longest-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/triangular-longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 874fb84f685baf0441a9bf8db1864605baa10908128545fe3028b9b499246108 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:44:15,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:44:15,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:44:15,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:44:15,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:44:15,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:44:15,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:44:15,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:44:15,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:44:15,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:44:15,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:44:15,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:44:15,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:44:15,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:44:15,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:44:15,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:44:15,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:44:15,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:44:15,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:44:15,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:44:15,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:44:15,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:44:15,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:44:15,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:44:15,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:44:15,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:44:15,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:44:15,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:44:15,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:44:15,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:44:15,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:44:15,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:44:15,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:44:15,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:44:15,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:44:15,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:44:15,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:44:15,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:44:15,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:44:15,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:44:15,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:44:15,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-19 05:44:15,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:44:15,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:44:15,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:44:15,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:44:15,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:44:15,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:44:15,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:44:15,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:44:15,953 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:44:15,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:44:15,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:44:15,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:44:15,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:44:15,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:44:15,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:44:15,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:44:15,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:44:15,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:44:15,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:44:15,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:44:15,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:44:15,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:44:15,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:44:15,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-19 05:44:15,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:44:15,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:44:15,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:44:15,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:44:15,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:44:15,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:44:15,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:44:15,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:44:15,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-19 05:44:15,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:44:15,961 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-19 05:44:15,962 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-19 05:44:15,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 874fb84f685baf0441a9bf8db1864605baa10908128545fe3028b9b499246108 [2021-11-19 05:44:16,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:44:16,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:44:16,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:44:16,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:44:16,263 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:44:16,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/../../sv-benchmarks/c/pthread/triangular-longest-2.i [2021-11-19 05:44:16,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/data/01548ae01/b4605f39d48e4b2fa11c87e87c088da9/FLAG0ed099c1a [2021-11-19 05:44:16,928 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:44:16,928 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/sv-benchmarks/c/pthread/triangular-longest-2.i [2021-11-19 05:44:16,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/data/01548ae01/b4605f39d48e4b2fa11c87e87c088da9/FLAG0ed099c1a [2021-11-19 05:44:17,216 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/data/01548ae01/b4605f39d48e4b2fa11c87e87c088da9 [2021-11-19 05:44:17,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:44:17,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:44:17,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:44:17,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:44:17,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:44:17,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eff3099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17, skipping insertion in model container [2021-11-19 05:44:17,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:44:17,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:44:17,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/sv-benchmarks/c/pthread/triangular-longest-2.i[30964,30977] [2021-11-19 05:44:17,678 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:44:17,689 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:44:17,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/sv-benchmarks/c/pthread/triangular-longest-2.i[30964,30977] [2021-11-19 05:44:17,767 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:44:17,819 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:44:17,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17 WrapperNode [2021-11-19 05:44:17,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:44:17,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:44:17,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:44:17,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:44:17,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,890 INFO L137 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2021-11-19 05:44:17,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:44:17,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:44:17,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:44:17,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:44:17,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:44:17,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:44:17,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:44:17,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:44:17,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (1/1) ... [2021-11-19 05:44:17,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:44:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:17,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:44:17,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:44:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-19 05:44:18,043 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-19 05:44:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-19 05:44:18,043 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-19 05:44:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 05:44:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 05:44:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:44:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:44:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:44:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:44:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 05:44:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:44:18,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:44:18,046 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 05:44:18,159 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:44:18,160 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:44:18,373 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:44:18,380 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:44:18,394 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 05:44:18,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:44:18 BoogieIcfgContainer [2021-11-19 05:44:18,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:44:18,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:44:18,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:44:18,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:44:18,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:44:17" (1/3) ... [2021-11-19 05:44:18,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc6fa64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:44:18, skipping insertion in model container [2021-11-19 05:44:18,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:44:17" (2/3) ... [2021-11-19 05:44:18,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc6fa64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:44:18, skipping insertion in model container [2021-11-19 05:44:18,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:44:18" (3/3) ... [2021-11-19 05:44:18,405 INFO L111 eAbstractionObserver]: Analyzing ICFG triangular-longest-2.i [2021-11-19 05:44:18,410 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 05:44:18,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:44:18,426 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:44:18,426 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 05:44:18,456 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,456 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,456 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,457 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,457 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,457 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,457 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,458 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,458 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,458 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,459 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,459 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,459 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,459 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,460 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,460 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,460 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,460 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,461 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,461 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,461 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,462 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,462 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,462 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,462 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,463 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,463 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,463 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,464 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,464 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,464 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,464 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,465 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,465 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,465 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,465 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,466 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,466 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,466 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,466 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,467 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,467 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,467 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,467 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,468 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,468 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,468 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,469 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,469 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,469 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,469 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,470 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,470 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,470 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,470 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,471 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,474 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,474 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,474 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,475 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,475 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,475 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,478 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,479 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,479 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,479 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,480 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,480 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:44:18,481 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 05:44:18,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-19 05:44:18,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:18,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-19 05:44:18,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-19 05:44:18,584 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-19 05:44:18,593 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:44:18,593 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 05:44:18,787 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:18,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:18,793 INFO L85 PathProgramCache]: Analyzing trace with hash 398220865, now seen corresponding path program 1 times [2021-11-19 05:44:18,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:18,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686017101] [2021-11-19 05:44:18,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:18,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:19,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:19,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686017101] [2021-11-19 05:44:19,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686017101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:44:19,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:44:19,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 05:44:19,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032995628] [2021-11-19 05:44:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:44:19,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:44:19,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:19,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:44:19,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:44:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:19,294 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:19,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:19,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:19,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:44:19,377 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:19,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1098403987, now seen corresponding path program 1 times [2021-11-19 05:44:19,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:19,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365217474] [2021-11-19 05:44:19,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:19,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:19,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:19,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:19,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365217474] [2021-11-19 05:44:19,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365217474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:44:19,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:44:19,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:44:19,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362089110] [2021-11-19 05:44:19,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:44:19,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:44:19,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:19,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:44:19,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:44:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:19,471 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:19,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:19,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:19,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:19,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 05:44:19,539 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:19,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:19,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1361905471, now seen corresponding path program 1 times [2021-11-19 05:44:19,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:19,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319214965] [2021-11-19 05:44:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:19,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:19,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:19,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:19,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319214965] [2021-11-19 05:44:19,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319214965] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:44:19,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179676516] [2021-11-19 05:44:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:19,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:19,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:19,669 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:44:19,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 05:44:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:19,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:44:19,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:44:20,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:20,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:44:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:20,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179676516] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:44:20,193 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:44:20,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-19 05:44:20,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600337842] [2021-11-19 05:44:20,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:44:20,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:44:20,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:20,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:44:20,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:44:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:20,196 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:20,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:20,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:20,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:20,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:20,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:20,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-19 05:44:20,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:20,498 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:20,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:20,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1223486399, now seen corresponding path program 2 times [2021-11-19 05:44:20,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:20,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782476764] [2021-11-19 05:44:20,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:20,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:20,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:20,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782476764] [2021-11-19 05:44:20,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782476764] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:44:20,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645608752] [2021-11-19 05:44:20,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 05:44:20,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:20,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:20,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:44:20,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 05:44:20,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 05:44:20,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:44:20,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:44:20,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:44:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:20,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:44:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:21,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645608752] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:44:21,039 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:44:21,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-19 05:44:21,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896377121] [2021-11-19 05:44:21,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:44:21,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 05:44:21,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:21,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 05:44:21,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-19 05:44:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:21,048 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:21,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:21,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:21,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:21,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:21,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:21,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:21,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:21,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:44:21,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:21,509 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:21,510 INFO L85 PathProgramCache]: Analyzing trace with hash 685364415, now seen corresponding path program 3 times [2021-11-19 05:44:21,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:21,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761206278] [2021-11-19 05:44:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:21,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:21,692 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:21,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:21,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761206278] [2021-11-19 05:44:21,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761206278] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:44:21,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099700189] [2021-11-19 05:44:21,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 05:44:21,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:21,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:21,695 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:44:21,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 05:44:21,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-19 05:44:21,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:44:21,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 05:44:21,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:44:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-19 05:44:22,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:44:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-19 05:44:22,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099700189] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:44:22,839 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:44:22,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 28 [2021-11-19 05:44:22,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185034658] [2021-11-19 05:44:22,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:44:22,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-19 05:44:22,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:22,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-19 05:44:22,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2021-11-19 05:44:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:22,842 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:22,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.928571428571429) internal successors, (166), 28 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:22,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:22,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:22,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:22,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:22,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:23,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:23,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:23,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:23,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:23,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-19 05:44:23,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:44:24,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:24,038 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:24,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:24,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1716544843, now seen corresponding path program 1 times [2021-11-19 05:44:24,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:24,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153917297] [2021-11-19 05:44:24,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:24,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 7 proven. 237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:24,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:24,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153917297] [2021-11-19 05:44:24,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153917297] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:44:24,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785746887] [2021-11-19 05:44:24,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:24,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:24,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:24,319 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:44:24,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 05:44:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:24,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 05:44:24,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:44:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 7 proven. 237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:24,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:44:25,263 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 7 proven. 237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:44:25,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785746887] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:44:25,263 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:44:25,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 43 [2021-11-19 05:44:25,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807528960] [2021-11-19 05:44:25,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:44:25,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-19 05:44:25,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:25,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-19 05:44:25,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2021-11-19 05:44:25,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:25,266 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:25,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.8372093023255816) internal successors, (165), 43 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:25,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:25,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:25,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:25,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:25,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-19 05:44:25,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-19 05:44:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:26,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 05:44:26,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-19 05:44:26,414 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:26,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:26,415 INFO L85 PathProgramCache]: Analyzing trace with hash -396466057, now seen corresponding path program 2 times [2021-11-19 05:44:26,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:26,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229087138] [2021-11-19 05:44:26,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:26,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 998 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 05:44:27,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:27,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229087138] [2021-11-19 05:44:27,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229087138] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:44:27,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751367841] [2021-11-19 05:44:27,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 05:44:27,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:27,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:27,213 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:44:27,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 05:44:27,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 05:44:27,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:44:27,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-19 05:44:27,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:44:27,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 05:44:27,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:44:27,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751367841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:44:27,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:44:27,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [43] total 45 [2021-11-19 05:44:27,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415012766] [2021-11-19 05:44:27,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:44:27,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-19 05:44:27,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:27,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-19 05:44:27,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=1491, Unknown=0, NotChecked=0, Total=1980 [2021-11-19 05:44:27,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:27,708 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:27,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.5813953488372094) internal successors, (154), 43 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:27,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:27,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:27,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:27,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:27,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-19 05:44:27,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:27,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:28,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-19 05:44:28,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:28,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-19 05:44:28,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-19 05:44:28,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:28,938 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:28,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:28,939 INFO L85 PathProgramCache]: Analyzing trace with hash 629792459, now seen corresponding path program 3 times [2021-11-19 05:44:28,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:28,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425649509] [2021-11-19 05:44:28,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:28,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2021-11-19 05:44:29,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:29,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425649509] [2021-11-19 05:44:29,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425649509] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:44:29,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227694020] [2021-11-19 05:44:29,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 05:44:29,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:29,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:29,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:44:29,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 05:44:29,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-19 05:44:29,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:44:29,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 05:44:29,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:44:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2021-11-19 05:44:30,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:44:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2021-11-19 05:44:31,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227694020] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:44:31,141 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:44:31,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 22 [2021-11-19 05:44:31,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495408812] [2021-11-19 05:44:31,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:44:31,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-19 05:44:31,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:31,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-19 05:44:31,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-11-19 05:44:31,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:31,143 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:31,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 22 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:31,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:31,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:31,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:31,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:31,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-19 05:44:31,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:31,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-11-19 05:44:31,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-19 05:44:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-19 05:44:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 05:44:31,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 05:44:31,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:31,891 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:31,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:31,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1974157815, now seen corresponding path program 4 times [2021-11-19 05:44:31,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:31,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899824287] [2021-11-19 05:44:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:31,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 0 proven. 641 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-11-19 05:44:32,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:32,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899824287] [2021-11-19 05:44:32,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899824287] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:44:32,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852406909] [2021-11-19 05:44:32,216 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 05:44:32,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:32,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:32,217 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:44:32,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 05:44:32,311 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 05:44:32,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:44:32,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 05:44:32,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:44:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 0 proven. 641 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-11-19 05:44:33,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:44:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 0 proven. 641 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-11-19 05:44:34,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852406909] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:44:34,552 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:44:34,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 38 [2021-11-19 05:44:34,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755006172] [2021-11-19 05:44:34,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:44:34,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-19 05:44:34,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:34,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-19 05:44:34,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1100, Unknown=0, NotChecked=0, Total=1406 [2021-11-19 05:44:34,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:34,560 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:34,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 6.2894736842105265) internal successors, (239), 38 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:34,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:34,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:34,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:34,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:34,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-19 05:44:34,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:34,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-11-19 05:44:34,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-19 05:44:34,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:36,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:36,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:36,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:36,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:36,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-19 05:44:36,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-19 05:44:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 05:44:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-19 05:44:36,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 05:44:36,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-19 05:44:36,670 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:36,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:36,671 INFO L85 PathProgramCache]: Analyzing trace with hash 949466191, now seen corresponding path program 5 times [2021-11-19 05:44:36,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:36,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125982114] [2021-11-19 05:44:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:36,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:44:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 0 proven. 1393 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 05:44:37,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:44:37,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125982114] [2021-11-19 05:44:37,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125982114] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:44:37,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241578829] [2021-11-19 05:44:37,336 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-19 05:44:37,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:44:37,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 [2021-11-19 05:44:37,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:44:37,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 05:44:37,447 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2021-11-19 05:44:37,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:44:37,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-19 05:44:37,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:44:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 0 proven. 1393 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 05:44:38,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:44:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 0 proven. 1393 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 05:44:40,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241578829] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:44:40,483 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:44:40,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 70 [2021-11-19 05:44:40,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572378554] [2021-11-19 05:44:40,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:44:40,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-11-19 05:44:40,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:44:40,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-11-19 05:44:40,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1106, Invalid=3724, Unknown=0, NotChecked=0, Total=4830 [2021-11-19 05:44:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:40,494 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-19 05:44:40,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 5.7) internal successors, (399), 70 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:44:40,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:40,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:40,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:40,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:40,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-11-19 05:44:40,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:40,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-11-19 05:44:40,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-19 05:44:40,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-11-19 05:44:40,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:44:44,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:44:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:44:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:44:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 05:44:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-11-19 05:44:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-19 05:44:44,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-19 05:44:44,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 05:44:44,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-19 05:44:44,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-19 05:44:44,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 05:44:44,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-19 05:44:44,606 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:44:44,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:44:44,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1309709614, now seen corresponding path program 6 times [2021-11-19 05:44:44,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:44:44,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184721247] [2021-11-19 05:44:44,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:44:44,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:44:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:44:44,665 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:44:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:44:44,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:44:44,823 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:44:44,824 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-19 05:44:44,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-19 05:44:44,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-11-19 05:44:44,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-19 05:44:44,834 INFO L732 BasicCegarLoop]: Path program histogram: [6, 3, 1, 1] [2021-11-19 05:44:44,839 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 05:44:44,839 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:44:45,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:44:45 BasicIcfg [2021-11-19 05:44:45,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:44:45,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:44:45,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:44:45,030 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:44:45,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:44:18" (3/4) ... [2021-11-19 05:44:45,032 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 05:44:45,233 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/witness.graphml [2021-11-19 05:44:45,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:44:45,234 INFO L158 Benchmark]: Toolchain (without parser) took 28013.86ms. Allocated memory was 92.3MB in the beginning and 343.9MB in the end (delta: 251.7MB). Free memory was 62.4MB in the beginning and 115.7MB in the end (delta: -53.3MB). Peak memory consumption was 196.7MB. Max. memory is 16.1GB. [2021-11-19 05:44:45,234 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 49.0MB in the beginning and 49.0MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:44:45,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.01ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 62.1MB in the beginning and 86.9MB in the end (delta: -24.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:44:45,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.13ms. Allocated memory is still 119.5MB. Free memory was 86.9MB in the beginning and 85.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:44:45,236 INFO L158 Benchmark]: Boogie Preprocessor took 57.98ms. Allocated memory is still 119.5MB. Free memory was 85.3MB in the beginning and 83.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:44:45,236 INFO L158 Benchmark]: RCFGBuilder took 445.48ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 72.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:44:45,237 INFO L158 Benchmark]: TraceAbstraction took 26630.24ms. Allocated memory was 119.5MB in the beginning and 343.9MB in the end (delta: 224.4MB). Free memory was 72.2MB in the beginning and 156.6MB in the end (delta: -84.4MB). Peak memory consumption was 142.9MB. Max. memory is 16.1GB. [2021-11-19 05:44:45,237 INFO L158 Benchmark]: Witness Printer took 203.99ms. Allocated memory is still 343.9MB. Free memory was 156.6MB in the beginning and 115.7MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2021-11-19 05:44:45,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 49.0MB in the beginning and 49.0MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 598.01ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 62.1MB in the beginning and 86.9MB in the end (delta: -24.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.13ms. Allocated memory is still 119.5MB. Free memory was 86.9MB in the beginning and 85.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.98ms. Allocated memory is still 119.5MB. Free memory was 85.3MB in the beginning and 83.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.48ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 72.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 26630.24ms. Allocated memory was 119.5MB in the beginning and 343.9MB in the end (delta: 224.4MB). Free memory was 72.2MB in the beginning and 156.6MB in the end (delta: -84.4MB). Peak memory consumption was 142.9MB. Max. memory is 16.1GB. * Witness Printer took 203.99ms. Allocated memory is still 343.9MB. Free memory was 156.6MB in the beginning and 115.7MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 86178, positive: 78592, positive conditional: 77667, positive unconditional: 925, negative: 7586, negative conditional: 7580, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 79392, positive: 78592, positive conditional: 77667, positive unconditional: 925, negative: 800, negative conditional: 794, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 79392, positive: 78592, positive conditional: 77667, positive unconditional: 925, negative: 800, negative conditional: 794, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 84314, positive: 78592, positive conditional: 77634, positive unconditional: 958, negative: 5722, negative conditional: 4922, negative unconditional: 800, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 84314, positive: 78592, positive conditional: 45838, positive unconditional: 32754, negative: 5722, negative conditional: 1746, negative unconditional: 3976, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 84314, positive: 78592, positive conditional: 45838, positive unconditional: 32754, negative: 5722, negative conditional: 1746, negative unconditional: 3976, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1033, positive: 907, positive conditional: 82, positive unconditional: 825, negative: 126, negative conditional: 120, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1033, positive: 825, positive conditional: 0, positive unconditional: 825, negative: 208, negative conditional: 0, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 208, positive: 82, positive conditional: 82, positive unconditional: 0, negative: 126, negative conditional: 120, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 388, positive: 140, positive conditional: 140, positive unconditional: 0, negative: 249, negative conditional: 176, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 84314, positive: 77685, positive conditional: 45756, positive unconditional: 31929, negative: 5596, negative conditional: 1626, negative unconditional: 3970, unknown: 1033, unknown conditional: 202, unknown unconditional: 831] , Statistics on independence cache: Total cache size (in pairs): 1033, Positive cache size: 907, Positive conditional cache size: 82, Positive unconditional cache size: 825, Negative cache size: 126, Negative conditional cache size: 120, Negative unconditional cache size: 6, Eliminated conditions: 34972, Maximal queried relation: 9, Independence queries for same thread: 6786 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 102, Number of trivial persistent sets: 81, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 931, positive: 925, positive conditional: 0, positive unconditional: 925, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 86178, positive: 78592, positive conditional: 77667, positive unconditional: 925, negative: 7586, negative conditional: 7580, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 79392, positive: 78592, positive conditional: 77667, positive unconditional: 925, negative: 800, negative conditional: 794, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 79392, positive: 78592, positive conditional: 77667, positive unconditional: 925, negative: 800, negative conditional: 794, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 84314, positive: 78592, positive conditional: 77634, positive unconditional: 958, negative: 5722, negative conditional: 4922, negative unconditional: 800, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 84314, positive: 78592, positive conditional: 45838, positive unconditional: 32754, negative: 5722, negative conditional: 1746, negative unconditional: 3976, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 84314, positive: 78592, positive conditional: 45838, positive unconditional: 32754, negative: 5722, negative conditional: 1746, negative unconditional: 3976, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1033, positive: 907, positive conditional: 82, positive unconditional: 825, negative: 126, negative conditional: 120, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1033, positive: 825, positive conditional: 0, positive unconditional: 825, negative: 208, negative conditional: 0, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 208, positive: 82, positive conditional: 82, positive unconditional: 0, negative: 126, negative conditional: 120, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 388, positive: 140, positive conditional: 140, positive unconditional: 0, negative: 249, negative conditional: 176, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 84314, positive: 77685, positive conditional: 45756, positive unconditional: 31929, negative: 5596, negative conditional: 1626, negative unconditional: 3970, unknown: 1033, unknown conditional: 202, unknown unconditional: 831] , Statistics on independence cache: Total cache size (in pairs): 1033, Positive cache size: 907, Positive conditional cache size: 82, Positive unconditional cache size: 825, Negative cache size: 126, Negative conditional cache size: 120, Negative unconditional cache size: 6, Eliminated conditions: 34972, Maximal queried relation: 9, Independence queries for same thread: 6786 - 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: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; VAL [i=3, j=6] [L712] 0 pthread_t id1, id2; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6] [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6, pthread_create(&id1, ((void *)0), t1, ((void *)0))=6] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6, pthread_create(&id2, ((void *)0), t2, ((void *)0))=7] [L716] 0 int condI = i >= (2*20 +6); VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, i=3, id1={5:0}, id2={3:0}, j=6] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=0, k=2] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=0, k=2] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=1] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=1] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=1, k=3] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=3, k=1] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=3, k=2] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=3, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=2] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=2, k=3] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=2, k=4] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=2, k=4] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=4, k=3] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=4, k=3] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=3] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=3, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=3, k=5] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=3] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=4] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=4] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=4, k=6] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=6, k=4] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=5] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=5] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=7, k=5] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=5, k=7] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=7, k=6] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=6] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=6] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=6, k=8] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=8, k=6] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=8, k=7] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=7, k=8] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=7, k=8] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=7, k=9] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=7] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=8] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=8] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=8] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=8] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=8] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=8] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=10] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=9] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=10, k=9] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=27, j=26, k=10, k=9] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=27, j=26, k=11, k=9] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=27, j=26, k=9, k=11] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=27, j=26, k=10, k=11] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=27, j=26, k=11, k=10] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=27, j=28, k=11, k=10] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=29, j=28, k=10, k=11] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=29, j=28, k=10, k=12] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=29, j=28, k=12, k=10] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=29, j=28, k=12, k=11] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=29, j=28, k=11, k=12] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=29, j=30, k=11, k=12] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=31, j=30, k=12, k=11] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=31, j=30, k=11, k=13] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=31, j=30, k=13, k=11] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=31, j=30, k=13, k=12] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=31, j=30, k=13, k=12] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=31, j=32, k=12, k=13] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=33, j=32, k=13, k=12] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=33, j=32, k=14, k=12] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=33, j=32, k=12, k=14] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=33, j=32, k=13, k=14] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=33, j=32, k=13, k=14] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=33, j=34, k=14, k=13] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=35, j=34, k=14, k=13] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=35, j=34, k=13, k=15] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=35, j=34, k=15, k=13] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=35, j=34, k=14, k=15] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=35, j=34, k=15, k=14] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=35, j=36, k=14, k=15] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=37, j=36, k=14, k=15] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=37, j=36, k=16, k=14] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=37, j=36, k=14, k=16] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=37, j=36, k=15, k=16] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=37, j=36, k=16, k=15] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=37, j=38, k=15, k=16] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=39, j=38, k=16, k=15] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=39, j=38, k=15, k=17] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=39, j=38, k=15, k=17] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=39, j=38, k=17, k=16] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=39, j=38, k=16, k=17] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=39, j=40, k=16, k=17] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=41, j=40, k=17, k=16] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=41, j=40, k=18, k=16] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=41, j=40, k=18, k=16] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=41, j=40, k=18, k=17] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=41, j=40, k=18, k=17] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=41, j=42, k=17, k=18] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=43, j=42, k=17, k=18] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=43, j=42, k=19, k=17] [L696] COND TRUE 1 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=43, j=42, k=17, k=19] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=43, j=42, k=19, k=18] [L704] COND TRUE 2 k < 20 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=43, j=42, k=19, k=18] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=43, j=44, k=18, k=19] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=45, j=44, k=18, k=19] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=45, j=44, k=18, k=20] [L696] COND FALSE 1 !(k < 20) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=45, j=44, k=18, k=20] [L704] 2 k++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=45, j=44, k=20, k=19] [L704] COND TRUE 2 k < 20 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=45, j=44, k=20, k=19] [L706] 2 j = i + 1 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=45, j=46, k=19, k=20] [L719] 0 int condJ = j >= (2*20 +6); VAL [\old(argc)=49, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=45, id1={5:0}, id2={3:0}, j=46, k=20, k=19] [L721] COND TRUE 0 condI || condJ VAL [\old(argc)=49, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=45, id1={5:0}, id2={3:0}, j=46, k=20, k=19] [L722] 0 reach_error() VAL [\old(argc)=49, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=45, id1={5:0}, id2={3:0}, j=46, k=19, k=20] - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 88 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 26.3s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 9.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 378, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 2302 NumberOfCodeBlocks, 2192 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 2871 ConstructedInterpolants, 0 QuantifiedInterpolants, 14003 SizeOfPredicates, 128 NumberOfNonLiveVariables, 1784 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 5848/13752 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-19 05:44:45,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:44:45,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dc8927-6d8b-4f95-a643-6a36067c1c76/bin/ugemcutter-Ozs8LMUF8r/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