./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW --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 0.2.3-dev-9bd2c7f [2023-11-17 22:48:08,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:48:08,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-11-17 22:48:08,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:48:08,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:48:08,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:48:08,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:48:08,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:48:08,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:48:08,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:48:08,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:48:08,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:48:08,921 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:48:08,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:48:08,924 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:48:08,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:48:08,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:48:08,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:48:08,926 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-17 22:48:08,926 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-17 22:48:08,926 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-17 22:48:08,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:48:08,927 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-17 22:48:08,928 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-17 22:48:08,928 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:48:08,929 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:48:08,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:48:08,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:48:08,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:48:08,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:48:08,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:48:08,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:48:08,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:48:08,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:48:08,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:48:08,932 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-17 22:48:08,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:48:08,933 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:48:08,933 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:48:08,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea [2023-11-17 22:48:09,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:48:09,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:48:09,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:48:09,231 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:48:09,231 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:48:09,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c [2023-11-17 22:48:12,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:48:12,659 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:48:12,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c [2023-11-17 22:48:12,669 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/data/b90c6b2c5/696f8f0fa15d46bc95408a625b2bd8a4/FLAGdc2b85af2 [2023-11-17 22:48:12,995 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/data/b90c6b2c5/696f8f0fa15d46bc95408a625b2bd8a4 [2023-11-17 22:48:13,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:48:13,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:48:13,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:48:13,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:48:13,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:48:13,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:48:12" (1/1) ... [2023-11-17 22:48:13,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb5cf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13, skipping insertion in model container [2023-11-17 22:48:13,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:48:12" (1/1) ... [2023-11-17 22:48:13,056 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:48:13,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:48:13,264 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:48:13,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:48:13,297 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:48:13,297 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:48:13,307 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:48:13,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13 WrapperNode [2023-11-17 22:48:13,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:48:13,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:48:13,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:48:13,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:48:13,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,373 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2023-11-17 22:48:13,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:48:13,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:48:13,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:48:13,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:48:13,387 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:48:13,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:48:13,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:48:13,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:48:13,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (1/1) ... [2023-11-17 22:48:13,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:48:13,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:13,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:48:13,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:48:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:48:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 22:48:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 22:48:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 22:48:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 22:48:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 22:48:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:48:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:48:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 22:48:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 22:48:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:48:13,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:48:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 22:48:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:48:13,538 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:48:13,706 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:48:13,713 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:48:13,996 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:48:14,047 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:48:14,047 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-17 22:48:14,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:48:14 BoogieIcfgContainer [2023-11-17 22:48:14,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:48:14,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:48:14,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:48:14,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:48:14,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:48:12" (1/3) ... [2023-11-17 22:48:14,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cc8254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:48:14, skipping insertion in model container [2023-11-17 22:48:14,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:48:13" (2/3) ... [2023-11-17 22:48:14,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cc8254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:48:14, skipping insertion in model container [2023-11-17 22:48:14,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:48:14" (3/3) ... [2023-11-17 22:48:14,062 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr.wvr.c [2023-11-17 22:48:14,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:48:14,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-17 22:48:14,085 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:48:14,171 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 22:48:14,230 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:48:14,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:48:14,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:14,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:48:14,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:48:14,286 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:48:14,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-17 22:48:14,307 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@732bf548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:48:14,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-17 22:48:14,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:14,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:14,653 INFO L85 PathProgramCache]: Analyzing trace with hash -462135738, now seen corresponding path program 1 times [2023-11-17 22:48:14,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:14,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996642255] [2023-11-17 22:48:14,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:14,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:14,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:14,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996642255] [2023-11-17 22:48:14,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996642255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:14,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:48:14,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:48:14,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110098946] [2023-11-17 22:48:14,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:14,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:48:14,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:14,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:48:14,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:48:14,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,002 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:15,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2023-11-17 22:48:15,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 22:48:15,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:15,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:15,054 INFO L85 PathProgramCache]: Analyzing trace with hash 406581001, now seen corresponding path program 1 times [2023-11-17 22:48:15,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:15,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517085610] [2023-11-17 22:48:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:15,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:15,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:15,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:15,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517085610] [2023-11-17 22:48:15,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517085610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:15,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:48:15,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 22:48:15,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106262678] [2023-11-17 22:48:15,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:15,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:48:15,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:15,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:48:15,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:48:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,601 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:15,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2023-11-17 22:48:15,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:15,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 22:48:15,731 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:15,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash -655817652, now seen corresponding path program 1 times [2023-11-17 22:48:15,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:15,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395971770] [2023-11-17 22:48:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:15,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:15,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:15,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:15,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395971770] [2023-11-17 22:48:15,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395971770] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:15,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481389789] [2023-11-17 22:48:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:16,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:16,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:16,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:16,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 22:48:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:16,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-17 22:48:16,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:16,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:48:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:16,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481389789] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:48:16,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:48:16,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-17 22:48:16,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684684772] [2023-11-17 22:48:16,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:48:16,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-17 22:48:16,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:16,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-17 22:48:16,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-17 22:48:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:16,379 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:16,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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) [2023-11-17 22:48:16,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:16,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:16,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:16,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-17 22:48:16,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:16,790 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:16,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:16,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1567531959, now seen corresponding path program 1 times [2023-11-17 22:48:16,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:16,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208641278] [2023-11-17 22:48:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:16,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:17,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:17,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208641278] [2023-11-17 22:48:17,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208641278] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:17,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889199144] [2023-11-17 22:48:17,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:17,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:17,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:17,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:17,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 22:48:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:17,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-17 22:48:17,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:17,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:48:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:18,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889199144] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:48:18,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:48:18,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 8 [2023-11-17 22:48:18,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331552794] [2023-11-17 22:48:18,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:48:18,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 22:48:18,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:18,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 22:48:18,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-17 22:48:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:18,044 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:18,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 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) [2023-11-17 22:48:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:18,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:18,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:18,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:18,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:18,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:18,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 22:48:18,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:18,359 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:18,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:18,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1229275023, now seen corresponding path program 2 times [2023-11-17 22:48:18,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:18,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302409105] [2023-11-17 22:48:18,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:18,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:18,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:18,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302409105] [2023-11-17 22:48:18,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302409105] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:18,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090138613] [2023-11-17 22:48:18,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:48:18,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:18,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:18,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:18,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 22:48:18,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 22:48:18,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:48:18,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-17 22:48:18,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:19,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:48:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:19,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090138613] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:48:19,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:48:19,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11] total 28 [2023-11-17 22:48:19,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570726888] [2023-11-17 22:48:19,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:48:19,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-17 22:48:19,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:19,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-17 22:48:19,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2023-11-17 22:48:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:19,485 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:19,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 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) [2023-11-17 22:48:19,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:19,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:19,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:19,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:19,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:19,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:19,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:19,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:19,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:48:19,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-17 22:48:20,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:20,102 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:20,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:20,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1699742557, now seen corresponding path program 3 times [2023-11-17 22:48:20,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:20,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924692435] [2023-11-17 22:48:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:20,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:20,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:20,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924692435] [2023-11-17 22:48:20,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924692435] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:20,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591274020] [2023-11-17 22:48:20,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 22:48:20,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:20,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:20,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:20,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-17 22:48:20,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-17 22:48:20,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:48:20,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-17 22:48:20,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:20,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:48:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:21,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591274020] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:48:21,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:48:21,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 16 [2023-11-17 22:48:21,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562160222] [2023-11-17 22:48:21,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:48:21,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-17 22:48:21,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:21,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-17 22:48:21,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-11-17 22:48:21,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:21,309 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:21,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 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) [2023-11-17 22:48:21,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:21,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:21,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:21,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:21,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:48:21,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:21,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-17 22:48:21,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:21,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-17 22:48:22,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-17 22:48:22,089 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:22,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:22,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1166474581, now seen corresponding path program 4 times [2023-11-17 22:48:22,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:22,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941558550] [2023-11-17 22:48:22,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:22,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 21 proven. 95 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-17 22:48:23,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941558550] [2023-11-17 22:48:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941558550] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:23,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320107348] [2023-11-17 22:48:23,146 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 22:48:23,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:23,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:23,148 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:23,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-17 22:48:23,245 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 22:48:23,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:48:23,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-17 22:48:23,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:23,957 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 76 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:23,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:48:24,862 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 38 proven. 80 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 22:48:24,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320107348] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:48:24,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:48:24,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 28, 21] total 59 [2023-11-17 22:48:24,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589053773] [2023-11-17 22:48:24,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:48:24,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-11-17 22:48:24,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:24,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-11-17 22:48:24,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=559, Invalid=2863, Unknown=0, NotChecked=0, Total=3422 [2023-11-17 22:48:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:24,873 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:24,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 4.084745762711864) internal successors, (241), 59 states have internal predecessors, (241), 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) [2023-11-17 22:48:24,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:24,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:24,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:24,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:24,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-11-17 22:48:24,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:24,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:26,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-17 22:48:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-17 22:48:26,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-17 22:48:26,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-17 22:48:26,299 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:26,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash 207126309, now seen corresponding path program 5 times [2023-11-17 22:48:26,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:26,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215639976] [2023-11-17 22:48:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:26,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:27,443 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 26 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:27,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:27,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215639976] [2023-11-17 22:48:27,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215639976] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:27,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524902817] [2023-11-17 22:48:27,444 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 22:48:27,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:27,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:27,446 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:27,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-17 22:48:27,559 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-11-17 22:48:27,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:48:27,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-17 22:48:27,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:28,422 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 81 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:28,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:48:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 39 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:30,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524902817] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:48:30,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:48:30,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 24] total 70 [2023-11-17 22:48:30,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464186727] [2023-11-17 22:48:30,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:48:30,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-11-17 22:48:30,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:30,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-11-17 22:48:30,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=655, Invalid=4175, Unknown=0, NotChecked=0, Total=4830 [2023-11-17 22:48:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:30,335 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:30,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 3.7) internal successors, (259), 70 states have internal predecessors, (259), 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) [2023-11-17 22:48:30,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:30,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:30,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:30,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:30,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-11-17 22:48:30,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:30,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-11-17 22:48:30,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-17 22:48:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:33,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-17 22:48:33,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-11-17 22:48:33,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-17 22:48:33,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:33,736 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:33,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1573395952, now seen corresponding path program 6 times [2023-11-17 22:48:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:33,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221703344] [2023-11-17 22:48:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 346 proven. 470 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-17 22:48:36,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:36,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221703344] [2023-11-17 22:48:36,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221703344] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:36,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748999572] [2023-11-17 22:48:36,989 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-17 22:48:36,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:36,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:36,990 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:37,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-17 22:48:37,162 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2023-11-17 22:48:37,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:48:37,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-17 22:48:37,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 321 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:40,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:48:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 389 proven. 447 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-17 22:48:44,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748999572] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:48:44,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:48:44,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 67, 48] total 148 [2023-11-17 22:48:44,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115351143] [2023-11-17 22:48:44,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:48:44,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 148 states [2023-11-17 22:48:44,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:44,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2023-11-17 22:48:44,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2932, Invalid=18824, Unknown=0, NotChecked=0, Total=21756 [2023-11-17 22:48:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:44,236 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:44,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 148 states, 148 states have (on average 2.885135135135135) internal successors, (427), 148 states have internal predecessors, (427), 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) [2023-11-17 22:48:44,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:44,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:44,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:44,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:44,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-11-17 22:48:44,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:44,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-11-17 22:48:44,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-11-17 22:48:44,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-17 22:48:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-17 22:48:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2023-11-17 22:48:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-17 22:48:50,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-17 22:48:50,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:50,525 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-17 22:48:50,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:50,526 INFO L85 PathProgramCache]: Analyzing trace with hash 557288624, now seen corresponding path program 7 times [2023-11-17 22:48:50,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:50,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455486165] [2023-11-17 22:48:50,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:50,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 351 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:54,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:54,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455486165] [2023-11-17 22:48:54,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455486165] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:54,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268349130] [2023-11-17 22:48:54,400 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-17 22:48:54,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:54,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:54,401 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:54,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352df5a0-0be6-4017-9021-b8bf2684d7e3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-17 22:48:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:54,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-17 22:48:54,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:58,242 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 616 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:48:58,242 INFO L327 TraceCheckSpWp]: Computing backward predicates...