./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e523f48 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44a70169ef8abd67c211072db1308f16df00422231dd8f14aa88bc39d0b023bb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-5e523f4 [2024-11-21 00:38:24,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 00:38:24,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-11-21 00:38:24,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 00:38:24,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 00:38:24,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 00:38:24,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 00:38:24,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 00:38:24,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 00:38:24,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 00:38:24,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 00:38:24,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 00:38:24,978 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 00:38:24,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 00:38:24,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 00:38:24,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 00:38:24,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 00:38:24,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 00:38:24,979 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-21 00:38:24,979 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-21 00:38:24,979 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-21 00:38:24,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 00:38:24,980 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-21 00:38:24,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-21 00:38:24,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 00:38:24,980 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 00:38:24,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 00:38:24,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 00:38:24,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 00:38:24,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 00:38:24,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 00:38:24,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 00:38:24,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 00:38:24,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 00:38:24,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 00:38:24,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 00:38:24,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 00:38:24,982 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-11-21 00:38:24,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 00:38:24,983 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 00:38:24,983 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 00:38:24,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 44a70169ef8abd67c211072db1308f16df00422231dd8f14aa88bc39d0b023bb [2024-11-21 00:38:25,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 00:38:25,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 00:38:25,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 00:38:25,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 00:38:25,302 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 00:38:25,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i [2024-11-21 00:38:28,311 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/data/100bec8e0/582828008e164ea18c7b1d9e3f2f7638/FLAG7bc3ed4a4 [2024-11-21 00:38:28,678 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 00:38:28,679 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i [2024-11-21 00:38:28,703 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/data/100bec8e0/582828008e164ea18c7b1d9e3f2f7638/FLAG7bc3ed4a4 [2024-11-21 00:38:28,881 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/data/100bec8e0/582828008e164ea18c7b1d9e3f2f7638 [2024-11-21 00:38:28,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 00:38:28,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 00:38:28,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 00:38:28,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 00:38:28,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 00:38:28,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:38:28" (1/1) ... [2024-11-21 00:38:28,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2fa5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:28, skipping insertion in model container [2024-11-21 00:38:28,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:38:28" (1/1) ... [2024-11-21 00:38:28,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 00:38:29,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 00:38:29,270 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 00:38:29,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 00:38:29,376 INFO L204 MainTranslator]: Completed translation [2024-11-21 00:38:29,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29 WrapperNode [2024-11-21 00:38:29,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 00:38:29,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 00:38:29,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 00:38:29,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 00:38:29,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,418 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2024-11-21 00:38:29,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 00:38:29,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 00:38:29,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 00:38:29,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 00:38:29,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,440 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 00:38:29,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 00:38:29,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 00:38:29,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 00:38:29,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (1/1) ... [2024-11-21 00:38:29,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 00:38:29,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:29,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-21 00:38:29,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-21 00:38:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-21 00:38:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-21 00:38:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-21 00:38:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-21 00:38:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 00:38:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 00:38:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-21 00:38:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 00:38:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 00:38:29,528 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 00:38:29,686 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 00:38:29,688 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 00:38:29,963 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 00:38:29,963 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 00:38:30,143 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 00:38:30,143 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-21 00:38:30,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:38:30 BoogieIcfgContainer [2024-11-21 00:38:30,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 00:38:30,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 00:38:30,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 00:38:30,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 00:38:30,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:38:28" (1/3) ... [2024-11-21 00:38:30,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7004d47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:38:30, skipping insertion in model container [2024-11-21 00:38:30,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:38:29" (2/3) ... [2024-11-21 00:38:30,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7004d47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:38:30, skipping insertion in model container [2024-11-21 00:38:30,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:38:30" (3/3) ... [2024-11-21 00:38:30,154 INFO L128 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt-zero.i [2024-11-21 00:38:30,170 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 00:38:30,172 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 11_fmaxsymopt-zero.i that has 2 procedures, 25 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-21 00:38:30,173 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 00:38:30,255 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 00:38:30,313 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:30,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 00:38:30,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:30,317 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-21 00:38:30,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-21 00:38:30,404 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:38:30,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-11-21 00:38:30,419 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:30,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-21 00:38:30,591 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:30,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:30,596 INFO L85 PathProgramCache]: Analyzing trace with hash -607194809, now seen corresponding path program 1 times [2024-11-21 00:38:30,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:30,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055914040] [2024-11-21 00:38:30,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:30,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:30,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:30,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055914040] [2024-11-21 00:38:30,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055914040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:30,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:30,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-21 00:38:30,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066833625] [2024-11-21 00:38:30,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:30,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:30,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:31,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:31,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:31,019 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:31,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-21 00:38:31,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:31,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 00:38:31,093 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:31,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:31,095 INFO L85 PathProgramCache]: Analyzing trace with hash -607194808, now seen corresponding path program 1 times [2024-11-21 00:38:31,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:31,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323368412] [2024-11-21 00:38:31,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:31,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:31,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:31,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:31,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323368412] [2024-11-21 00:38:31,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323368412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:31,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:31,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:31,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768576965] [2024-11-21 00:38:31,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:31,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:38:31,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:31,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:38:31,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 00:38:31,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:31,511 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:31,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-21 00:38:31,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:31,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:31,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:31,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:31,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 00:38:31,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:31,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:31,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1922523313, now seen corresponding path program 1 times [2024-11-21 00:38:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:31,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996440481] [2024-11-21 00:38:31,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:31,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:31,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996440481] [2024-11-21 00:38:31,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996440481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:31,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:31,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:31,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578940551] [2024-11-21 00:38:31,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:31,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:31,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:31,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:31,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:31,776 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:31,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-21 00:38:31,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:31,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:31,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:31,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:31,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 00:38:31,924 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:31,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:31,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1462004437, now seen corresponding path program 1 times [2024-11-21 00:38:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823397643] [2024-11-21 00:38:31,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:32,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:32,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:32,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823397643] [2024-11-21 00:38:32,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823397643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:38:32,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554059608] [2024-11-21 00:38:32,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:32,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:32,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:32,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:38:32,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 00:38:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:32,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-21 00:38:32,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:38:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:32,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 00:38:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:32,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554059608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 00:38:32,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 00:38:32,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10 [2024-11-21 00:38:32,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297732848] [2024-11-21 00:38:32,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 00:38:32,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 00:38:32,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:32,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 00:38:32,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-21 00:38:32,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:32,911 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:32,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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) [2024-11-21 00:38:32,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:32,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:32,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:32,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:33,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-21 00:38:33,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:33,294 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:33,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash -688887256, now seen corresponding path program 2 times [2024-11-21 00:38:33,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:33,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759189917] [2024-11-21 00:38:33,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:33,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:33,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:33,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759189917] [2024-11-21 00:38:33,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759189917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:38:33,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158955565] [2024-11-21 00:38:33,371 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 00:38:33,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:33,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:33,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:38:33,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 00:38:33,474 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 00:38:33,474 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 00:38:33,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 00:38:33,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:38:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:33,504 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 00:38:33,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158955565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:33,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 00:38:33,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-21 00:38:33,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628657181] [2024-11-21 00:38:33,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:33,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:38:33,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:33,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:38:33,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 00:38:33,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:33,506 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:33,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2024-11-21 00:38:33,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:33,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:33,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:33,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:33,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:33,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:33,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:33,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-21 00:38:33,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:33,866 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:33,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:33,867 INFO L85 PathProgramCache]: Analyzing trace with hash 697005681, now seen corresponding path program 1 times [2024-11-21 00:38:33,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:33,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205360897] [2024-11-21 00:38:33,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:33,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:33,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-21 00:38:33,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:33,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205360897] [2024-11-21 00:38:33,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205360897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:33,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:33,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:33,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433555660] [2024-11-21 00:38:33,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:33,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:33,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:33,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:33,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:33,940 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:33,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-21 00:38:33,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:33,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:33,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:33,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:33,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:33,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:34,151 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2024-11-21 00:38:34,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-21 00:38:34,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2024-11-21 00:38:34,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 00:38:34,159 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-21 00:38:34,160 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE,SAFE,SAFE (1/2) [2024-11-21 00:38:34,163 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:34,164 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:38:34,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 00:38:34,165 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:34,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-21 00:38:34,202 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 00:38:34,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash -607204711, now seen corresponding path program 1 times [2024-11-21 00:38:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:34,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538781557] [2024-11-21 00:38:34,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 00:38:34,210 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 00:38:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 00:38:34,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-21 00:38:34,229 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 00:38:34,230 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-21 00:38:34,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-21 00:38:34,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 00:38:34,231 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-21 00:38:34,234 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2024-11-21 00:38:34,235 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-21 00:38:34,235 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-21 00:38:34,274 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 00:38:34,276 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:34,290 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:38:34,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 00:38:34,291 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:34,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-21 00:38:34,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 00:38:34,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:34,390 INFO L85 PathProgramCache]: Analyzing trace with hash 888576327, now seen corresponding path program 1 times [2024-11-21 00:38:34,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:34,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740302115] [2024-11-21 00:38:34,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:34,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 00:38:34,401 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 00:38:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 00:38:34,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-21 00:38:34,413 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 00:38:34,413 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-21 00:38:34,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-21 00:38:34,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 00:38:34,417 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-21 00:38:34,418 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/3) [2024-11-21 00:38:34,418 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-21 00:38:34,418 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-21 00:38:34,454 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 00:38:34,460 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:34,473 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:38:34,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2024-11-21 00:38:34,474 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:34,475 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-21 00:38:34,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:34,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1900474980, now seen corresponding path program 1 times [2024-11-21 00:38:34,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:34,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193143708] [2024-11-21 00:38:34,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:34,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:34,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:34,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:34,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193143708] [2024-11-21 00:38:34,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193143708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:34,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:34,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-21 00:38:34,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650658928] [2024-11-21 00:38:34,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:34,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:34,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:34,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:34,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:34,679 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:34,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-21 00:38:34,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:34,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:34,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 00:38:34,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:34,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1900474979, now seen corresponding path program 1 times [2024-11-21 00:38:34,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:34,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096002566] [2024-11-21 00:38:34,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:34,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:34,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:34,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096002566] [2024-11-21 00:38:34,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096002566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:34,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:34,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 00:38:34,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690117344] [2024-11-21 00:38:34,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:34,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 00:38:34,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:34,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 00:38:34,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 00:38:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:34,922 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:34,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-21 00:38:34,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:34,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:35,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:35,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:35,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-21 00:38:35,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:35,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1259059620, now seen corresponding path program 1 times [2024-11-21 00:38:35,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:35,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638024535] [2024-11-21 00:38:35,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:35,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:35,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638024535] [2024-11-21 00:38:35,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638024535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:35,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:35,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:35,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648464775] [2024-11-21 00:38:35,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:35,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:35,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:35,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:35,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:35,151 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:35,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-21 00:38:35,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:35,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:35,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:35,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:35,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 00:38:35,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:35,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:35,276 INFO L85 PathProgramCache]: Analyzing trace with hash -790668510, now seen corresponding path program 1 times [2024-11-21 00:38:35,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:35,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970638651] [2024-11-21 00:38:35,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:35,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:35,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:35,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970638651] [2024-11-21 00:38:35,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970638651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:38:35,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890657064] [2024-11-21 00:38:35,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:35,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:35,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:35,498 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:38:35,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 00:38:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:35,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-21 00:38:35,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:38:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:35,863 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 00:38:36,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:36,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890657064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 00:38:36,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 00:38:36,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10 [2024-11-21 00:38:36,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394006743] [2024-11-21 00:38:36,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 00:38:36,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 00:38:36,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:36,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 00:38:36,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-21 00:38:36,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:36,042 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:36,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2024-11-21 00:38:36,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:36,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:36,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:36,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:36,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:36,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-21 00:38:36,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:36,493 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:36,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:36,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1204395139, now seen corresponding path program 2 times [2024-11-21 00:38:36,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:36,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543456823] [2024-11-21 00:38:36,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:36,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:36,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:36,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543456823] [2024-11-21 00:38:36,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543456823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:38:36,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267921827] [2024-11-21 00:38:36,562 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 00:38:36,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:36,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:36,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:38:36,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 00:38:36,662 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 00:38:36,662 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 00:38:36,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 00:38:36,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:38:36,687 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:36,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 00:38:36,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267921827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:36,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 00:38:36,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-21 00:38:36,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533572408] [2024-11-21 00:38:36,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:36,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:38:36,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:36,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:38:36,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 00:38:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:36,689 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:36,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-21 00:38:36,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:36,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:36,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:36,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:36,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:36,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 00:38:37,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:37,094 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:37,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:37,095 INFO L85 PathProgramCache]: Analyzing trace with hash -637129794, now seen corresponding path program 1 times [2024-11-21 00:38:37,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:37,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526512050] [2024-11-21 00:38:37,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:37,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:37,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-21 00:38:37,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:37,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526512050] [2024-11-21 00:38:37,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526512050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:37,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:37,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:37,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240034744] [2024-11-21 00:38:37,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:37,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:37,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:37,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:37,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:37,158 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:37,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-21 00:38:37,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:37,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:37,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:37,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:37,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:37,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:39,915 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2024-11-21 00:38:39,915 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-21 00:38:39,915 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2024-11-21 00:38:39,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-21 00:38:39,919 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-21 00:38:39,919 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was SAFE,SAFE,SAFE (1/4) [2024-11-21 00:38:39,921 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:39,922 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:38:39,923 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 00:38:39,923 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:39,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-21 00:38:39,997 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 00:38:39,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:39,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1900484840, now seen corresponding path program 1 times [2024-11-21 00:38:39,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:39,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89266143] [2024-11-21 00:38:39,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:39,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 00:38:40,008 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 00:38:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 00:38:40,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-21 00:38:40,019 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 00:38:40,020 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-21 00:38:40,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-21 00:38:40,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-21 00:38:40,022 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-21 00:38:40,023 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/4) [2024-11-21 00:38:40,023 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-21 00:38:40,023 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-21 00:38:40,067 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 00:38:40,069 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:40,085 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:38:40,085 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of4ForFork0 ======== [2024-11-21 00:38:40,085 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:40,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-21 00:38:40,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:40,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:40,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1357286535, now seen corresponding path program 1 times [2024-11-21 00:38:40,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:40,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127130186] [2024-11-21 00:38:40,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:40,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:40,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:40,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127130186] [2024-11-21 00:38:40,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127130186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:40,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:40,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-21 00:38:40,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353782903] [2024-11-21 00:38:40,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:40,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:40,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:40,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:40,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:40,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:40,289 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:40,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-21 00:38:40,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:40,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-21 00:38:40,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:40,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:40,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1357286536, now seen corresponding path program 1 times [2024-11-21 00:38:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539570613] [2024-11-21 00:38:40,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:40,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:40,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:40,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539570613] [2024-11-21 00:38:40,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539570613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:40,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:40,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 00:38:40,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668949048] [2024-11-21 00:38:40,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:40,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 00:38:40,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:40,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 00:38:40,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 00:38:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:40,468 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:40,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-21 00:38:40,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:40,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:40,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:40,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:40,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-21 00:38:40,575 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:40,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash 734042831, now seen corresponding path program 1 times [2024-11-21 00:38:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:40,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260290326] [2024-11-21 00:38:40,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:40,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:40,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:40,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260290326] [2024-11-21 00:38:40,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260290326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:40,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:40,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:40,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569744790] [2024-11-21 00:38:40,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:40,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:40,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:40,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:40,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:40,634 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:40,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-21 00:38:40,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:40,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:40,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:40,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:40,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:40,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-21 00:38:40,738 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:40,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:40,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2101889430, now seen corresponding path program 1 times [2024-11-21 00:38:40,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:40,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784649505] [2024-11-21 00:38:40,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:40,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:40,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:40,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784649505] [2024-11-21 00:38:40,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784649505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:38:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187963564] [2024-11-21 00:38:40,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:40,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:40,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:40,964 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:38:40,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-21 00:38:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:41,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-21 00:38:41,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:38:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:41,270 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 00:38:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:41,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187963564] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 00:38:41,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 00:38:41,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10 [2024-11-21 00:38:41,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754913013] [2024-11-21 00:38:41,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 00:38:41,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 00:38:41,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:41,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 00:38:41,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-21 00:38:41,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:41,401 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:41,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2024-11-21 00:38:41,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:41,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:41,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:41,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:41,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-21 00:38:41,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:41,795 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:41,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1060620744, now seen corresponding path program 2 times [2024-11-21 00:38:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:41,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930972911] [2024-11-21 00:38:41,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:41,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:41,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930972911] [2024-11-21 00:38:41,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930972911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:38:41,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703442432] [2024-11-21 00:38:41,855 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 00:38:41,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:41,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:41,857 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:38:41,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-21 00:38:41,977 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 00:38:41,977 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 00:38:41,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 00:38:41,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:38:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:41,999 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 00:38:41,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703442432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:41,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 00:38:41,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-21 00:38:41,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496339418] [2024-11-21 00:38:41,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:42,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:38:42,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:42,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:38:42,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 00:38:42,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:42,001 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:42,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-21 00:38:42,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:42,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:42,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:42,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:42,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:42,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:42,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:42,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:42,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-21 00:38:42,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:42,373 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:42,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash 250387602, now seen corresponding path program 1 times [2024-11-21 00:38:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:42,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801002649] [2024-11-21 00:38:42,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:42,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-21 00:38:42,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:42,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801002649] [2024-11-21 00:38:42,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801002649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:42,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:42,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:42,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666178022] [2024-11-21 00:38:42,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:42,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:42,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:42,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:42,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:42,461 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:42,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-21 00:38:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:42,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:54,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:54,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:54,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2024-11-21 00:38:54,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-21 00:38:54,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2024-11-21 00:38:54,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-21 00:38:54,904 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-21 00:38:54,904 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread3of4ForFork0 was SAFE,SAFE,SAFE (1/5) [2024-11-21 00:38:54,906 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:54,907 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:38:54,907 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread4of4ForFork0 ======== [2024-11-21 00:38:54,908 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:38:54,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-21 00:38:54,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:54,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:54,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1808848527, now seen corresponding path program 1 times [2024-11-21 00:38:54,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:54,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666704573] [2024-11-21 00:38:54,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:54,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:55,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:55,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666704573] [2024-11-21 00:38:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666704573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:55,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:55,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-21 00:38:55,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931761812] [2024-11-21 00:38:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:55,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:55,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:55,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:55,042 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:55,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-21 00:38:55,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:55,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:55,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-21 00:38:55,101 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:55,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:55,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1808848528, now seen corresponding path program 1 times [2024-11-21 00:38:55,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:55,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176902400] [2024-11-21 00:38:55,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:55,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:55,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:55,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176902400] [2024-11-21 00:38:55,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176902400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:55,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:55,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:55,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366532542] [2024-11-21 00:38:55,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:55,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:38:55,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:55,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:38:55,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 00:38:55,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:55,257 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:55,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-21 00:38:55,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:55,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:55,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:55,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-21 00:38:55,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:55,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash -722436585, now seen corresponding path program 1 times [2024-11-21 00:38:55,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:55,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494249519] [2024-11-21 00:38:55,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:55,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:55,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:55,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494249519] [2024-11-21 00:38:55,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494249519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:55,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:55,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:55,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124409672] [2024-11-21 00:38:55,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:55,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:55,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:55,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:55,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:55,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:55,535 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:55,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-21 00:38:55,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:55,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:38:55,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:55,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-21 00:38:55,664 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:55,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:55,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1547324413, now seen corresponding path program 1 times [2024-11-21 00:38:55,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:55,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972889714] [2024-11-21 00:38:55,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:55,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:55,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:55,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972889714] [2024-11-21 00:38:55,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972889714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:38:55,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732863952] [2024-11-21 00:38:55,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:55,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:55,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:55,845 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:38:55,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-21 00:38:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:55,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-21 00:38:55,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:38:56,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:56,164 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 00:38:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:56,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732863952] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 00:38:56,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 00:38:56,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-11-21 00:38:56,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106657414] [2024-11-21 00:38:56,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 00:38:56,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-21 00:38:56,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:56,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-21 00:38:56,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-21 00:38:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:56,300 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:56,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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) [2024-11-21 00:38:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:56,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:56,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:56,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:56,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-21 00:38:56,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-21 00:38:56,731 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:56,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1543241136, now seen corresponding path program 2 times [2024-11-21 00:38:56,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357729944] [2024-11-21 00:38:56,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:56,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:56,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:56,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357729944] [2024-11-21 00:38:56,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357729944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:38:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93386111] [2024-11-21 00:38:56,789 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 00:38:56,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:38:56,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:38:56,791 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:38:56,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-21 00:38:56,889 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 00:38:56,890 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 00:38:56,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 00:38:56,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:38:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:38:56,915 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 00:38:56,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93386111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:56,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 00:38:56,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-21 00:38:56,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282678924] [2024-11-21 00:38:56,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:56,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:38:56,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:56,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:38:56,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 00:38:56,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:56,917 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:56,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-21 00:38:56,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:56,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:56,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:56,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:56,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:57,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:57,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:57,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-21 00:38:57,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-21 00:38:57,272 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:38:57,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:38:57,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1234444255, now seen corresponding path program 1 times [2024-11-21 00:38:57,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:38:57,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944656254] [2024-11-21 00:38:57,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:38:57,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:38:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:38:57,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-21 00:38:57,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:38:57,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944656254] [2024-11-21 00:38:57,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944656254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:38:57,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:38:57,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:38:57,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264141137] [2024-11-21 00:38:57,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:38:57,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:38:57,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:38:57,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:38:57,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:38:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:38:57,332 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:38:57,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-21 00:38:57,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:57,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:57,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:38:57,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:38:57,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:38:57,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:05,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2024-11-21 00:39:05,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-21 00:39:05,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2024-11-21 00:39:05,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-21 00:39:05,994 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-21 00:39:05,994 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread4of4ForFork0 was SAFE,SAFE,SAFE (2/5) [2024-11-21 00:39:05,997 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:39:05,998 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:39:05,999 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of4ForFork0 ======== [2024-11-21 00:39:05,999 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:39:05,999 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-21 00:39:06,064 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:06,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:06,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1662161934, now seen corresponding path program 1 times [2024-11-21 00:39:06,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:06,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880006881] [2024-11-21 00:39:06,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:06,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:06,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:06,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880006881] [2024-11-21 00:39:06,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880006881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:06,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:06,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-21 00:39:06,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145239509] [2024-11-21 00:39:06,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:06,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:06,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:06,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:06,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:06,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:06,104 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:06,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-21 00:39:06,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:06,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-21 00:39:06,139 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:06,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:06,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1662161933, now seen corresponding path program 1 times [2024-11-21 00:39:06,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:06,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607494885] [2024-11-21 00:39:06,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:06,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:06,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:06,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607494885] [2024-11-21 00:39:06,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607494885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:06,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:06,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:06,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659152962] [2024-11-21 00:39:06,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:06,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:39:06,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:06,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:39:06,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 00:39:06,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:06,242 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:06,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-21 00:39:06,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:06,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:06,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:39:06,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-21 00:39:06,312 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:06,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:06,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1362593594, now seen corresponding path program 1 times [2024-11-21 00:39:06,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:06,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092272034] [2024-11-21 00:39:06,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:06,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:06,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:06,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:06,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092272034] [2024-11-21 00:39:06,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092272034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:06,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:06,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:06,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622969389] [2024-11-21 00:39:06,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:06,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:06,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:06,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:06,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:06,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:06,348 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:06,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-21 00:39:06,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:06,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:39:06,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:06,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-21 00:39:06,416 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:06,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:06,417 INFO L85 PathProgramCache]: Analyzing trace with hash -787328715, now seen corresponding path program 1 times [2024-11-21 00:39:06,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:06,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924224694] [2024-11-21 00:39:06,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:06,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:06,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:06,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:06,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924224694] [2024-11-21 00:39:06,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924224694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:39:06,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080627412] [2024-11-21 00:39:06,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:06,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:39:06,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:39:06,570 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:39:06,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-21 00:39:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:06,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-21 00:39:06,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:39:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:06,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 00:39:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:06,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080627412] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 00:39:06,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 00:39:06,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10 [2024-11-21 00:39:06,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481865809] [2024-11-21 00:39:06,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 00:39:06,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 00:39:06,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:06,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 00:39:06,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-21 00:39:06,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:06,926 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:06,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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) [2024-11-21 00:39:06,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:06,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:06,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:06,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:07,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-21 00:39:07,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-21 00:39:07,232 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:07,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:07,233 INFO L85 PathProgramCache]: Analyzing trace with hash -492483405, now seen corresponding path program 2 times [2024-11-21 00:39:07,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:07,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488092922] [2024-11-21 00:39:07,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:07,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:07,276 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:07,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:07,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488092922] [2024-11-21 00:39:07,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488092922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:39:07,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369384872] [2024-11-21 00:39:07,276 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 00:39:07,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:39:07,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:39:07,278 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:39:07,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-21 00:39:07,369 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 00:39:07,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 00:39:07,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 00:39:07,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:39:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:07,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 00:39:07,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369384872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:07,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 00:39:07,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-21 00:39:07,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250236927] [2024-11-21 00:39:07,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:07,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:39:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:07,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:39:07,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 00:39:07,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:07,392 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:07,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2024-11-21 00:39:07,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:07,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:07,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:07,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:07,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:07,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:07,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:07,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:07,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:07,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:07,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-21 00:39:07,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-21 00:39:07,690 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:07,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:07,690 INFO L85 PathProgramCache]: Analyzing trace with hash -751705167, now seen corresponding path program 1 times [2024-11-21 00:39:07,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:07,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526396547] [2024-11-21 00:39:07,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:07,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:07,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-21 00:39:07,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:07,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526396547] [2024-11-21 00:39:07,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526396547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:07,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:07,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:07,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098435105] [2024-11-21 00:39:07,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:07,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:07,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:07,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:07,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:07,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:07,753 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:07,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-21 00:39:07,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:07,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:07,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:07,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:07,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:07,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:15,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:15,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2024-11-21 00:39:15,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-21 00:39:15,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2024-11-21 00:39:15,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-21 00:39:15,714 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-21 00:39:15,714 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of4ForFork0 was SAFE,SAFE,SAFE (3/5) [2024-11-21 00:39:15,716 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:39:15,717 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:39:15,717 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of4ForFork0 ======== [2024-11-21 00:39:15,718 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:39:15,718 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-21 00:39:15,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:15,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:15,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1972074650, now seen corresponding path program 1 times [2024-11-21 00:39:15,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:15,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12387379] [2024-11-21 00:39:15,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:15,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:15,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:15,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:15,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12387379] [2024-11-21 00:39:15,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12387379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:15,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:15,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-21 00:39:15,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207414054] [2024-11-21 00:39:15,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:15,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:15,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:15,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:15,819 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:15,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-21 00:39:15,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:15,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-21 00:39:15,854 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:15,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:15,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1972074651, now seen corresponding path program 1 times [2024-11-21 00:39:15,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:15,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559520680] [2024-11-21 00:39:15,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:15,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:15,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:15,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:15,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559520680] [2024-11-21 00:39:15,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559520680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:15,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:15,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:15,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316715261] [2024-11-21 00:39:15,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:15,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:39:15,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:15,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:39:15,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 00:39:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:15,953 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:15,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-21 00:39:15,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:15,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:16,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:39:16,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-21 00:39:16,037 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:16,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:16,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1564007714, now seen corresponding path program 1 times [2024-11-21 00:39:16,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:16,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247384771] [2024-11-21 00:39:16,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:16,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:16,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:16,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:16,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247384771] [2024-11-21 00:39:16,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247384771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:16,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:16,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:16,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293601496] [2024-11-21 00:39:16,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:16,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:16,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:16,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:16,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:16,079 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:16,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-21 00:39:16,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:16,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:39:16,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:16,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:16,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:16,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-21 00:39:16,167 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:16,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:16,167 INFO L85 PathProgramCache]: Analyzing trace with hash -780831486, now seen corresponding path program 1 times [2024-11-21 00:39:16,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:16,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338111516] [2024-11-21 00:39:16,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:16,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:16,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:16,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338111516] [2024-11-21 00:39:16,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338111516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:39:16,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243670887] [2024-11-21 00:39:16,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:16,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:39:16,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:39:16,301 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:39:16,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-21 00:39:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:16,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-21 00:39:16,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:39:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:16,567 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 00:39:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:16,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243670887] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 00:39:16,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 00:39:16,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-11-21 00:39:16,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559316270] [2024-11-21 00:39:16,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 00:39:16,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-21 00:39:16,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:16,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-21 00:39:16,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-21 00:39:16,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:16,849 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:16,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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) [2024-11-21 00:39:16,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:16,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:16,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:16,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:17,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:17,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:17,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-21 00:39:17,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-21 00:39:17,209 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:17,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:17,210 INFO L85 PathProgramCache]: Analyzing trace with hash -207041733, now seen corresponding path program 2 times [2024-11-21 00:39:17,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:17,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506174632] [2024-11-21 00:39:17,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:17,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:17,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:17,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506174632] [2024-11-21 00:39:17,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506174632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:39:17,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577213511] [2024-11-21 00:39:17,266 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 00:39:17,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:39:17,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:39:17,268 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:39:17,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-21 00:39:17,371 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 00:39:17,371 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 00:39:17,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 00:39:17,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:39:17,392 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:17,392 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 00:39:17,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577213511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:17,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 00:39:17,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-21 00:39:17,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860353349] [2024-11-21 00:39:17,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:17,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:39:17,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:17,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:39:17,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 00:39:17,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:17,396 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:17,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-21 00:39:17,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:17,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:17,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:17,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:17,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:17,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:17,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:17,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:17,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:17,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:17,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-21 00:39:17,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-21 00:39:17,691 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:17,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:17,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1469126562, now seen corresponding path program 1 times [2024-11-21 00:39:17,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:17,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674826320] [2024-11-21 00:39:17,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:17,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-21 00:39:17,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:17,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674826320] [2024-11-21 00:39:17,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674826320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:17,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:17,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:17,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408855930] [2024-11-21 00:39:17,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:17,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:17,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:17,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:17,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:17,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:17,745 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:17,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-21 00:39:17,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:17,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:17,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:17,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:17,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:17,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:26,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:26,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:26,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:26,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:26,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:26,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:26,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2024-11-21 00:39:26,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-21 00:39:26,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2024-11-21 00:39:26,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-21 00:39:26,495 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-21 00:39:26,496 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread2of4ForFork0 was SAFE,SAFE,SAFE (4/5) [2024-11-21 00:39:26,497 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:39:26,498 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:39:26,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 00:39:26,498 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:39:26,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-21 00:39:26,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 00:39:26,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:26,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1808817835, now seen corresponding path program 1 times [2024-11-21 00:39:26,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:26,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608625659] [2024-11-21 00:39:26,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:26,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 00:39:26,559 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 00:39:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 00:39:26,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-21 00:39:26,568 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 00:39:26,568 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-21 00:39:26,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-21 00:39:26,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-21 00:39:26,569 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-21 00:39:26,569 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (5/5) [2024-11-21 00:39:26,569 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-21 00:39:26,569 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-21 00:39:26,602 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 00:39:26,603 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:39:26,620 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 00:39:26,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of5ForFork0 ======== [2024-11-21 00:39:26,621 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2099a548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 00:39:26,621 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-21 00:39:26,697 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:26,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:26,697 INFO L85 PathProgramCache]: Analyzing trace with hash 812819188, now seen corresponding path program 1 times [2024-11-21 00:39:26,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:26,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076575224] [2024-11-21 00:39:26,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:26,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:26,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:26,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076575224] [2024-11-21 00:39:26,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076575224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:26,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:26,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-21 00:39:26,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946035126] [2024-11-21 00:39:26,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:26,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:26,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:26,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:26,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:26,730 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:26,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-21 00:39:26,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:26,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:26,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-21 00:39:26,772 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:26,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:26,772 INFO L85 PathProgramCache]: Analyzing trace with hash 812819189, now seen corresponding path program 1 times [2024-11-21 00:39:26,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:26,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586706268] [2024-11-21 00:39:26,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:26,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:26,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:26,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586706268] [2024-11-21 00:39:26,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586706268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:26,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:26,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:26,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924159294] [2024-11-21 00:39:26,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:26,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:39:26,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:26,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:39:26,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 00:39:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:26,864 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:26,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-21 00:39:26,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:26,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:26,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:39:26,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-21 00:39:26,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:26,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:26,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1564069636, now seen corresponding path program 1 times [2024-11-21 00:39:26,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:26,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111024583] [2024-11-21 00:39:26,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:26,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:27,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:27,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:27,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111024583] [2024-11-21 00:39:27,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111024583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:27,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:27,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:27,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995979476] [2024-11-21 00:39:27,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:27,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:27,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:27,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:27,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:27,011 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:27,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-21 00:39:27,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:27,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 00:39:27,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:27,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-21 00:39:27,099 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:27,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:27,099 INFO L85 PathProgramCache]: Analyzing trace with hash -327547902, now seen corresponding path program 1 times [2024-11-21 00:39:27,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:27,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445440632] [2024-11-21 00:39:27,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:27,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:27,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:27,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445440632] [2024-11-21 00:39:27,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445440632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:39:27,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075165332] [2024-11-21 00:39:27,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:27,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:39:27,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:39:27,233 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:39:27,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-21 00:39:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:27,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-21 00:39:27,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:39:27,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:27,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 00:39:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:27,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075165332] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 00:39:27,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 00:39:27,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10 [2024-11-21 00:39:27,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864253310] [2024-11-21 00:39:27,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 00:39:27,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 00:39:27,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:27,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 00:39:27,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-21 00:39:27,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:27,597 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:27,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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) [2024-11-21 00:39:27,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:27,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:27,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:27,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:27,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-21 00:39:27,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-21 00:39:27,932 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:27,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:27,933 INFO L85 PathProgramCache]: Analyzing trace with hash 187755477, now seen corresponding path program 2 times [2024-11-21 00:39:27,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:27,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691814876] [2024-11-21 00:39:27,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:27,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:27,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:27,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691814876] [2024-11-21 00:39:27,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691814876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 00:39:27,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578435674] [2024-11-21 00:39:27,973 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 00:39:27,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 00:39:27,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 [2024-11-21 00:39:27,975 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 00:39:27,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-21 00:39:28,080 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 00:39:28,080 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 00:39:28,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 00:39:28,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 00:39:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 00:39:28,100 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 00:39:28,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578435674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:28,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 00:39:28,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-21 00:39:28,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800100713] [2024-11-21 00:39:28,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:28,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 00:39:28,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:28,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 00:39:28,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 00:39:28,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:28,102 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:28,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-21 00:39:28,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:28,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:28,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:28,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:28,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:28,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:28,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:28,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-21 00:39:28,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d75d0b-59d9-42a5-8013-d2551ab85a88/bin/ugemcutter-verify-jAHUagO94Y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-21 00:39:28,416 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-21 00:39:28,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 00:39:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash 179593118, now seen corresponding path program 1 times [2024-11-21 00:39:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 00:39:28,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158689910] [2024-11-21 00:39:28,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 00:39:28,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 00:39:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 00:39:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-21 00:39:28,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 00:39:28,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158689910] [2024-11-21 00:39:28,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158689910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 00:39:28,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 00:39:28,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 00:39:28,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734304754] [2024-11-21 00:39:28,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 00:39:28,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 00:39:28,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 00:39:28,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 00:39:28,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 00:39:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 00:39:28,456 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 00:39:28,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-21 00:39:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 00:39:28,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 00:39:28,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 00:39:28,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.