./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX --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 fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 08:14:15,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 08:14:15,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-12-05 08:14:15,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 08:14:15,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 08:14:15,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 08:14:15,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 08:14:15,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 08:14:15,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 08:14:15,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 08:14:15,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 08:14:15,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 08:14:15,092 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 08:14:15,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 08:14:15,092 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 08:14:15,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 08:14:15,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 08:14:15,093 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 08:14:15,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 08:14:15,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 08:14:15,094 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 08:14:15,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 08:14:15,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 08:14:15,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 08:14:15,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 08:14:15,094 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 08:14:15,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 08:14:15,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 08:14:15,095 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-12-05 08:14:15,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 08:14:15,095 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 08:14:15,095 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 08:14:15,095 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_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX 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 -> fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea [2024-12-05 08:14:15,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 08:14:15,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 08:14:15,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 08:14:15,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 08:14:15,298 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 08:14:15,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c [2024-12-05 08:14:17,883 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/data/b03ea186d/5d093614a7fc4ad6b1b650c59ad280b5/FLAG67db589ef [2024-12-05 08:14:18,111 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 08:14:18,112 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c [2024-12-05 08:14:18,118 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/data/b03ea186d/5d093614a7fc4ad6b1b650c59ad280b5/FLAG67db589ef [2024-12-05 08:14:18,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/data/b03ea186d/5d093614a7fc4ad6b1b650c59ad280b5 [2024-12-05 08:14:18,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 08:14:18,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 08:14:18,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 08:14:18,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 08:14:18,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 08:14:18,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a3e73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18, skipping insertion in model container [2024-12-05 08:14:18,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 08:14:18,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 08:14:18,277 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 08:14:18,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 08:14:18,303 INFO L204 MainTranslator]: Completed translation [2024-12-05 08:14:18,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18 WrapperNode [2024-12-05 08:14:18,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 08:14:18,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 08:14:18,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 08:14:18,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 08:14:18,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,326 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43 [2024-12-05 08:14:18,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 08:14:18,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 08:14:18,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 08:14:18,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 08:14:18,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,337 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 08:14:18,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 08:14:18,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 08:14:18,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 08:14:18,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (1/1) ... [2024-12-05 08:14:18,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 08:14:18,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:18,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 08:14:18,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 08:14:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 08:14:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-05 08:14:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-05 08:14:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-05 08:14:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-05 08:14:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 08:14:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-05 08:14:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-05 08:14:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 08:14:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 08:14:18,393 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 08:14:18,458 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 08:14:18,460 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 08:14:18,598 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 08:14:18,598 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 08:14:18,706 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 08:14:18,706 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-05 08:14:18,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:14:18 BoogieIcfgContainer [2024-12-05 08:14:18,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 08:14:18,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 08:14:18,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 08:14:18,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 08:14:18,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:14:18" (1/3) ... [2024-12-05 08:14:18,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b255bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:14:18, skipping insertion in model container [2024-12-05 08:14:18,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:18" (2/3) ... [2024-12-05 08:14:18,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b255bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:14:18, skipping insertion in model container [2024-12-05 08:14:18,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:14:18" (3/3) ... [2024-12-05 08:14:18,715 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr.wvr.c [2024-12-05 08:14:18,730 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 08:14:18,731 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-nonblocking-cntr.wvr.c that has 3 procedures, 22 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-05 08:14:18,732 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 08:14:18,769 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-05 08:14:18,815 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:14:18,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 08:14:18,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:18,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 08:14:18,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 08:14:18,884 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:14:18,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:14:18,902 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;@46c96043, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:14:18,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-05 08:14:19,009 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:19,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:19,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1600270162, now seen corresponding path program 1 times [2024-12-05 08:14:19,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:19,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904943079] [2024-12-05 08:14:19,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:14:19,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:14:19,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:19,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:19,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904943079] [2024-12-05 08:14:19,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904943079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:14:19,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:14:19,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:14:19,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371073771] [2024-12-05 08:14:19,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:14:19,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 08:14:19,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:19,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 08:14:19,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-05 08:14:19,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:19,274 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:19,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) 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) [2024-12-05 08:14:19,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:19,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:19,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-05 08:14:19,355 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:19,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:19,355 INFO L85 PathProgramCache]: Analyzing trace with hash -311108341, now seen corresponding path program 1 times [2024-12-05 08:14:19,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:19,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870345205] [2024-12-05 08:14:19,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:14:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:14:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 08:14:19,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:19,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870345205] [2024-12-05 08:14:19,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870345205] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:14:19,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:14:19,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:14:19,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836194656] [2024-12-05 08:14:19,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:14:19,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 08:14:19,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:19,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 08:14:19,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-05 08:14:19,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:19,459 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:19,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) 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) [2024-12-05 08:14:19,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:19,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:19,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-05 08:14:19,535 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:19,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:19,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1639235309, now seen corresponding path program 1 times [2024-12-05 08:14:19,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:19,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639240593] [2024-12-05 08:14:19,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:14:19,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:14:19,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:19,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:19,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639240593] [2024-12-05 08:14:19,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639240593] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:19,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391054855] [2024-12-05 08:14:19,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:14:19,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:19,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:19,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:19,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-05 08:14:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:14:19,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 08:14:19,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:19,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:20,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:20,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391054855] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:14:20,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:14:20,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 4] total 5 [2024-12-05 08:14:20,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572515633] [2024-12-05 08:14:20,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:14:20,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:14:20,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:20,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:14:20,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:14:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:20,047 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:20,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-12-05 08:14:20,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:20,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:20,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:20,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-05 08:14:20,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:20,364 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:20,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:20,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1974942949, now seen corresponding path program 2 times [2024-12-05 08:14:20,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:20,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245117381] [2024-12-05 08:14:20,365 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:14:20,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:20,385 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:14:20,385 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:20,566 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:20,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:20,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245117381] [2024-12-05 08:14:20,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245117381] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:20,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774949219] [2024-12-05 08:14:20,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:14:20,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:20,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:20,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:20,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-05 08:14:20,622 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:14:20,622 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:20,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 08:14:20,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:20,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:21,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774949219] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:21,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-05 08:14:21,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 23 [2024-12-05 08:14:21,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131763113] [2024-12-05 08:14:21,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:14:21,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 08:14:21,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:21,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 08:14:21,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2024-12-05 08:14:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:21,017 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:21,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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) [2024-12-05 08:14:21,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:21,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:21,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:21,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:21,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-05 08:14:21,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:21,351 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:21,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:21,351 INFO L85 PathProgramCache]: Analyzing trace with hash -488730553, now seen corresponding path program 3 times [2024-12-05 08:14:21,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:21,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428045900] [2024-12-05 08:14:21,351 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:14:21,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:21,377 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-05 08:14:21,377 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:21,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428045900] [2024-12-05 08:14:21,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428045900] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:21,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481348840] [2024-12-05 08:14:21,652 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:14:21,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:21,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:21,654 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:21,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-05 08:14:21,710 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-05 08:14:21,710 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:21,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-05 08:14:21,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:22,039 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:22,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:22,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481348840] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:14:22,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:14:22,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 12] total 29 [2024-12-05 08:14:22,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587802216] [2024-12-05 08:14:22,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:14:22,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-05 08:14:22,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:22,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-05 08:14:22,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2024-12-05 08:14:22,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:22,355 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:22,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 29 states have internal predecessors, (74), 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) [2024-12-05 08:14:22,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:22,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:22,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:22,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:22,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-05 08:14:22,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-05 08:14:23,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:23,035 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:23,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:23,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1654572625, now seen corresponding path program 4 times [2024-12-05 08:14:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:23,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111975728] [2024-12-05 08:14:23,035 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 08:14:23,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:23,050 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 08:14:23,050 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:23,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:23,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111975728] [2024-12-05 08:14:23,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111975728] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:23,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219133083] [2024-12-05 08:14:23,214 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 08:14:23,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:23,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:23,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:23,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-05 08:14:23,261 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 08:14:23,261 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:23,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-05 08:14:23,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:23,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:23,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219133083] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:14:23,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:14:23,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2024-12-05 08:14:23,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789750873] [2024-12-05 08:14:23,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:14:23,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-05 08:14:23,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:23,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-05 08:14:23,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-12-05 08:14:23,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:23,494 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:23,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 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) [2024-12-05 08:14:23,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:23,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-12-05 08:14:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:23,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-05 08:14:24,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:24,073 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:24,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:24,073 INFO L85 PathProgramCache]: Analyzing trace with hash -202977337, now seen corresponding path program 5 times [2024-12-05 08:14:24,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:24,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234649729] [2024-12-05 08:14:24,073 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 08:14:24,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:24,090 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-12-05 08:14:24,090 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-05 08:14:24,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:24,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234649729] [2024-12-05 08:14:24,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234649729] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:24,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467223798] [2024-12-05 08:14:24,478 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 08:14:24,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:24,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:24,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:24,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-05 08:14:24,520 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-12-05 08:14:24,520 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:24,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-05 08:14:24,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:24,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-05 08:14:25,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467223798] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:14:25,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:14:25,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22, 15] total 42 [2024-12-05 08:14:25,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402246503] [2024-12-05 08:14:25,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:14:25,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-12-05 08:14:25,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:25,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-12-05 08:14:25,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=1308, Unknown=0, NotChecked=0, Total=1722 [2024-12-05 08:14:25,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:25,235 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:25,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.2142857142857144) internal successors, (93), 42 states have internal predecessors, (93), 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) [2024-12-05 08:14:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:25,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:25,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:25,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-12-05 08:14:25,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-05 08:14:25,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:25,907 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:25,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:25,908 INFO L85 PathProgramCache]: Analyzing trace with hash 650168783, now seen corresponding path program 6 times [2024-12-05 08:14:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:25,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434859365] [2024-12-05 08:14:25,908 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-05 08:14:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:25,933 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-12-05 08:14:25,933 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 18 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:26,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:26,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434859365] [2024-12-05 08:14:26,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434859365] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:26,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116045926] [2024-12-05 08:14:26,551 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-05 08:14:26,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:26,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:26,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:26,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-05 08:14:26,609 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-12-05 08:14:26,609 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:26,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-05 08:14:26,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:26,999 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:27,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116045926] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:14:27,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:14:27,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 20] total 58 [2024-12-05 08:14:27,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035272520] [2024-12-05 08:14:27,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:14:27,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-12-05 08:14:27,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:27,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-12-05 08:14:27,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=634, Invalid=2672, Unknown=0, NotChecked=0, Total=3306 [2024-12-05 08:14:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:27,507 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:27,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 2.086206896551724) internal successors, (121), 58 states have internal predecessors, (121), 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) [2024-12-05 08:14:27,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:27,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:27,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:27,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:27,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:27,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:27,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-12-05 08:14:27,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:28,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-05 08:14:28,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-05 08:14:28,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:28,702 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:28,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1770638801, now seen corresponding path program 7 times [2024-12-05 08:14:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:28,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054994725] [2024-12-05 08:14:28,702 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-05 08:14:28,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:14:29,491 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 33 proven. 62 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 08:14:29,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:29,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054994725] [2024-12-05 08:14:29,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054994725] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:29,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461386084] [2024-12-05 08:14:29,491 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-05 08:14:29,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:29,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:29,493 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:29,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-05 08:14:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:14:29,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-05 08:14:29,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 38 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:30,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 47 proven. 50 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 08:14:31,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461386084] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:14:31,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:14:31,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 30, 23] total 70 [2024-12-05 08:14:31,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801258587] [2024-12-05 08:14:31,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:14:31,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-12-05 08:14:31,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:31,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-12-05 08:14:31,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=821, Invalid=4009, Unknown=0, NotChecked=0, Total=4830 [2024-12-05 08:14:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:31,712 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:31,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.1285714285714286) internal successors, (149), 70 states have internal predecessors, (149), 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) [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-12-05 08:14:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-12-05 08:14:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-12-05 08:14:32,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-05 08:14:32,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:32,725 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:32,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:32,725 INFO L85 PathProgramCache]: Analyzing trace with hash -149762317, now seen corresponding path program 8 times [2024-12-05 08:14:32,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:32,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129434918] [2024-12-05 08:14:32,725 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:14:32,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:32,737 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:14:32,737 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 33 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:33,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:33,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129434918] [2024-12-05 08:14:33,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129434918] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:33,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643824734] [2024-12-05 08:14:33,459 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:14:33,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:33,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:33,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:33,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-05 08:14:33,506 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:14:33,506 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:33,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-05 08:14:33,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 44 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:34,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 44 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643824734] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:14:35,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:14:35,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 23] total 73 [2024-12-05 08:14:35,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753491476] [2024-12-05 08:14:35,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:14:35,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-12-05 08:14:35,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:35,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-12-05 08:14:35,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=879, Invalid=4377, Unknown=0, NotChecked=0, Total=5256 [2024-12-05 08:14:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:35,743 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:35,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 2.0684931506849313) internal successors, (151), 73 states have internal predecessors, (151), 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) [2024-12-05 08:14:35,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-12-05 08:14:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:14:39,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:14:39,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:14:39,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-12-05 08:14:39,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-05 08:14:39,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:39,818 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:39,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:39,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1570352443, now seen corresponding path program 9 times [2024-12-05 08:14:39,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:39,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99921192] [2024-12-05 08:14:39,819 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:14:39,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:39,913 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-12-05 08:14:39,913 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 472 proven. 447 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-05 08:14:41,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:41,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99921192] [2024-12-05 08:14:41,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99921192] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:41,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311382360] [2024-12-05 08:14:41,812 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:14:41,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:41,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:41,813 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:41,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-05 08:14:41,900 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-12-05 08:14:41,900 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:41,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-12-05 08:14:41,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:14:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 96 proven. 856 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:44,540 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:14:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 804 proven. 140 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-05 08:14:46,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311382360] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:14:46,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:14:46,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 71, 43] total 154 [2024-12-05 08:14:46,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306226361] [2024-12-05 08:14:46,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:14:46,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 154 states [2024-12-05 08:14:46,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:46,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2024-12-05 08:14:46,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4554, Invalid=19008, Unknown=0, NotChecked=0, Total=23562 [2024-12-05 08:14:46,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:46,780 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:46,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 154 states, 154 states have (on average 2.155844155844156) internal successors, (332), 154 states have internal predecessors, (332), 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) [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2024-12-05 08:14:46,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:51,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-12-05 08:14:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2024-12-05 08:14:51,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-05 08:14:51,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-05 08:14:51,328 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:14:51,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:51,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2036990693, now seen corresponding path program 10 times [2024-12-05 08:14:51,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:51,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893599811] [2024-12-05 08:14:51,328 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 08:14:51,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:51,357 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 08:14:51,357 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 596 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:55,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:55,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893599811] [2024-12-05 08:14:55,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893599811] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:14:55,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210572191] [2024-12-05 08:14:55,258 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 08:14:55,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:14:55,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:14:55,259 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:14:55,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-05 08:14:55,320 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 08:14:55,321 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:14:55,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-05 08:14:55,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:15:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 596 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:15:00,125 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:15:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 596 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:15:02,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210572191] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:15:02,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:15:02,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 46, 47] total 151 [2024-12-05 08:15:02,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100788792] [2024-12-05 08:15:02,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:15:02,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 151 states [2024-12-05 08:15:02,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:15:02,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2024-12-05 08:15:02,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4380, Invalid=18270, Unknown=0, NotChecked=0, Total=22650 [2024-12-05 08:15:02,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:15:02,584 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:15:02,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 151 states, 151 states have (on average 2.23841059602649) internal successors, (338), 151 states have internal predecessors, (338), 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) [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2024-12-05 08:15:02,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2024-12-05 08:15:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2024-12-05 08:15:28,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-05 08:15:28,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-05 08:15:28,493 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:15:28,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:15:28,493 INFO L85 PathProgramCache]: Analyzing trace with hash 114706515, now seen corresponding path program 11 times [2024-12-05 08:15:28,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:15:28,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323878127] [2024-12-05 08:15:28,494 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 08:15:28,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:15:28,779 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2024-12-05 08:15:28,780 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:15:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6281 backedges. 5426 proven. 772 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-05 08:15:39,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:15:39,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323878127] [2024-12-05 08:15:39,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323878127] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:15:39,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246123643] [2024-12-05 08:15:39,567 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 08:15:39,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:15:39,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:15:39,568 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:15:39,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-05 08:15:39,752 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2024-12-05 08:15:39,752 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:15:39,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 164 conjuncts are in the unsatisfiable core [2024-12-05 08:15:39,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:15:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6281 backedges. 757 proven. 5524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:15:54,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:16:39,638 INFO L134 CoverageAnalysis]: Checked inductivity of 6281 backedges. 5492 proven. 772 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-05 08:16:39,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246123643] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:16:39,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:16:39,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 164, 91] total 355 [2024-12-05 08:16:39,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200949270] [2024-12-05 08:16:39,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:16:39,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 355 states [2024-12-05 08:16:39,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:16:39,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 355 interpolants. [2024-12-05 08:16:39,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26499, Invalid=99171, Unknown=0, NotChecked=0, Total=125670 [2024-12-05 08:16:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:16:39,653 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:16:39,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 355 states, 355 states have (on average 2.104225352112676) internal successors, (747), 355 states have internal predecessors, (747), 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) [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 246 states. [2024-12-05 08:16:39,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 262 states. [2024-12-05 08:17:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2024-12-05 08:17:01,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-12-05 08:17:01,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:01,962 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:17:01,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:01,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1060574377, now seen corresponding path program 12 times [2024-12-05 08:17:01,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:01,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326978329] [2024-12-05 08:17:01,962 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-05 08:17:01,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:02,121 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2024-12-05 08:17:02,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:17:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 4308 proven. 1854 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:17,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:17,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326978329] [2024-12-05 08:17:17,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326978329] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:17:17,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566454816] [2024-12-05 08:17:17,855 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-05 08:17:17,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:17,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:17:17,856 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:17:17,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-05 08:17:18,070 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2024-12-05 08:17:18,070 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:17:18,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 166 conjuncts are in the unsatisfiable core [2024-12-05 08:17:18,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:17:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 4319 proven. 1843 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:30,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:17:41,341 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 4319 proven. 1843 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:41,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566454816] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:17:41,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:17:41,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [164, 164, 109] total 427 [2024-12-05 08:17:41,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785641570] [2024-12-05 08:17:41,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:17:41,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 427 states [2024-12-05 08:17:41,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:41,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 427 interpolants. [2024-12-05 08:17:41,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39221, Invalid=142681, Unknown=0, NotChecked=0, Total=181902 [2024-12-05 08:17:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:41,357 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:41,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 427 states, 427 states have (on average 1.8922716627634661) internal successors, (808), 427 states have internal predecessors, (808), 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) [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 262 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2024-12-05 08:17:41,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 262 states. [2024-12-05 08:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 402 states. [2024-12-05 08:18:51,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 454 states. [2024-12-05 08:18:51,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-12-05 08:18:51,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-05 08:18:51,233 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 08:18:51,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:18:51,234 INFO L85 PathProgramCache]: Analyzing trace with hash -257723675, now seen corresponding path program 13 times [2024-12-05 08:18:51,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:18:51,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055358649] [2024-12-05 08:18:51,234 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-05 08:18:51,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:18:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:20:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 35642 proven. 2315 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-12-05 08:20:08,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:20:08,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055358649] [2024-12-05 08:20:08,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055358649] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:20:08,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337835365] [2024-12-05 08:20:08,426 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-05 08:20:08,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:20:08,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:20:08,428 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:20:08,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ee40d9-8224-4300-b4e0-afddcd266245/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-05 08:20:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:20:08,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 375 conjuncts are in the unsatisfiable core [2024-12-05 08:20:08,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:21:28,669 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 4741 proven. 33424 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:21:28,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:26:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 35861 proven. 2262 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-05 08:26:37,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337835365] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:26:37,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:26:37,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [249, 375, 193] total 808 [2024-12-05 08:26:37,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769753541] [2024-12-05 08:26:37,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:26:37,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 808 states [2024-12-05 08:26:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:26:37,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 808 interpolants. [2024-12-05 08:26:37,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153699, Invalid=498357, Unknown=0, NotChecked=0, Total=652056 [2024-12-05 08:26:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:26:37,445 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:26:37,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 808 states, 808 states have (on average 2.097772277227723) internal successors, (1695), 808 states have internal predecessors, (1695), 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) [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-12-05 08:26:37,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2024-12-05 08:26:37,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2024-12-05 08:26:37,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 262 states. [2024-12-05 08:26:37,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 402 states. [2024-12-05 08:26:37,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 454 states. [2024-12-05 08:26:37,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.