./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d87195cdf1d0fd4bcadf67f37be6f46388ea22a2ec77b383d012327e126a2173 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:08:02,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:08:02,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:08:02,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:08:02,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:08:02,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:08:02,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:08:02,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:08:02,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:08:02,940 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:08:02,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:08:02,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:08:02,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:08:02,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:08:02,943 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:08:02,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:08:02,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:08:02,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:08:02,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:08:02,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:08:02,945 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:08:02,946 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:08:02,946 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:08:02,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:08:02,947 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:08:02,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:08:02,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:08:02,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:08:02,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:08:02,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:08:02,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:08:02,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:08:02,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:08:02,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:02,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:08:02,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:08:02,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:08:02,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:08:02,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:08:02,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:08:02,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:08:02,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:08:02,957 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d87195cdf1d0fd4bcadf67f37be6f46388ea22a2ec77b383d012327e126a2173 [2024-10-31 22:08:03,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:08:03,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:08:03,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:08:03,289 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:08:03,289 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:08:03,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c Unable to find full path for "g++" [2024-10-31 22:08:05,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:08:05,589 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:08:05,590 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2024-10-31 22:08:05,600 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/data/5bfab2747/67c00262194f4ea29edbd403a1846ee9/FLAG4a581a4d9 [2024-10-31 22:08:05,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/data/5bfab2747/67c00262194f4ea29edbd403a1846ee9 [2024-10-31 22:08:05,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:08:05,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:08:05,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:05,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:08:05,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:08:05,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:05" (1/1) ... [2024-10-31 22:08:05,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3639dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:05, skipping insertion in model container [2024-10-31 22:08:05,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:05" (1/1) ... [2024-10-31 22:08:05,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:08:06,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:06,244 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:08:06,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:06,317 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:08:06,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06 WrapperNode [2024-10-31 22:08:06,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:06,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:06,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:08:06,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:08:06,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,394 INFO L138 Inliner]: procedures = 22, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 188 [2024-10-31 22:08:06,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:06,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:08:06,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:08:06,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:08:06,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,445 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:08:06,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:08:06,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:08:06,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:08:06,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:08:06,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (1/1) ... [2024-10-31 22:08:06,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:06,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:06,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:08:06,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f68bd6d-981d-42e9-bd2a-996a6731fcf3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:08:06,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:08:06,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:08:06,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:08:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:08:06,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:08:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:08:06,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:08:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-31 22:08:06,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-31 22:08:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:08:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:08:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:08:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:08:06,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:08:06,562 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:08:06,717 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:08:06,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:08:07,058 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:08:07,058 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:08:07,372 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:08:07,372 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:08:07,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:07 BoogieIcfgContainer [2024-10-31 22:08:07,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:08:07,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:08:07,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:08:07,378 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:08:07,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:08:05" (1/3) ... [2024-10-31 22:08:07,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12755c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:07, skipping insertion in model container [2024-10-31 22:08:07,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:06" (2/3) ... [2024-10-31 22:08:07,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12755c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:07, skipping insertion in model container [2024-10-31 22:08:07,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:07" (3/3) ... [2024-10-31 22:08:07,381 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2024-10-31 22:08:07,396 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:08:07,397 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:08:07,397 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:08:07,481 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:08:07,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 47 transitions, 122 flow [2024-10-31 22:08:07,567 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-10-31 22:08:07,567 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:08:07,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 43 events. 0/43 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-31 22:08:07,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 47 transitions, 122 flow [2024-10-31 22:08:07,573 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 42 transitions, 108 flow [2024-10-31 22:08:07,582 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:08:07,594 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=PETRI_NET, 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;@216b67e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:08:07,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-31 22:08:07,620 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:08:07,621 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-10-31 22:08:07,621 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:08:07,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:07,622 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:07,622 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:07,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:07,628 INFO L85 PathProgramCache]: Analyzing trace with hash -573636712, now seen corresponding path program 1 times [2024-10-31 22:08:07,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:07,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634639484] [2024-10-31 22:08:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:07,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:09,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:09,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634639484] [2024-10-31 22:08:09,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634639484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:09,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:09,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:08:09,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101376428] [2024-10-31 22:08:09,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:09,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:09,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:09,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:09,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:09,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-10-31 22:08:09,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 108 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2024-10-31 22:08:09,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:09,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-10-31 22:08:09,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:11,976 INFO L124 PetriNetUnfolderBase]: 15778/21691 cut-off events. [2024-10-31 22:08:11,977 INFO L125 PetriNetUnfolderBase]: For 1470/1470 co-relation queries the response was YES. [2024-10-31 22:08:12,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44681 conditions, 21691 events. 15778/21691 cut-off events. For 1470/1470 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 121060 event pairs, 10182 based on Foata normal form. 2/21657 useless extension candidates. Maximal degree in co-relation 40935. Up to 12528 conditions per place. [2024-10-31 22:08:12,109 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 72 selfloop transitions, 5 changer transitions 7/89 dead transitions. [2024-10-31 22:08:12,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 89 transitions, 397 flow [2024-10-31 22:08:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:08:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:08:12,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-10-31 22:08:12,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6702127659574468 [2024-10-31 22:08:12,125 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 108 flow. Second operand 4 states and 126 transitions. [2024-10-31 22:08:12,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 89 transitions, 397 flow [2024-10-31 22:08:12,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 89 transitions, 363 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-31 22:08:12,207 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 120 flow [2024-10-31 22:08:12,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-10-31 22:08:12,215 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, -5 predicate places. [2024-10-31 22:08:12,254 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 120 flow [2024-10-31 22:08:12,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2024-10-31 22:08:12,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:12,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:12,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:08:12,256 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:12,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:12,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2040436700, now seen corresponding path program 2 times [2024-10-31 22:08:12,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:12,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047464377] [2024-10-31 22:08:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:12,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:12,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:12,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047464377] [2024-10-31 22:08:12,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047464377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:12,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:12,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:12,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696124800] [2024-10-31 22:08:12,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:12,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:12,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:12,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:12,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:12,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:12,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-10-31 22:08:12,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:12,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:12,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:14,522 INFO L124 PetriNetUnfolderBase]: 12093/18342 cut-off events. [2024-10-31 22:08:14,522 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2024-10-31 22:08:14,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37412 conditions, 18342 events. 12093/18342 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 932. Compared 124871 event pairs, 3771 based on Foata normal form. 196/18095 useless extension candidates. Maximal degree in co-relation 16203. Up to 5780 conditions per place. [2024-10-31 22:08:14,704 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 80 selfloop transitions, 17 changer transitions 0/110 dead transitions. [2024-10-31 22:08:14,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 110 transitions, 461 flow [2024-10-31 22:08:14,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:08:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:08:14,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-10-31 22:08:14,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7361702127659574 [2024-10-31 22:08:14,710 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 120 flow. Second operand 5 states and 173 transitions. [2024-10-31 22:08:14,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 110 transitions, 461 flow [2024-10-31 22:08:14,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 110 transitions, 451 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-31 22:08:14,728 INFO L231 Difference]: Finished difference. Result has 53 places, 59 transitions, 214 flow [2024-10-31 22:08:14,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=53, PETRI_TRANSITIONS=59} [2024-10-31 22:08:14,730 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2024-10-31 22:08:14,730 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 59 transitions, 214 flow [2024-10-31 22:08:14,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-10-31 22:08:14,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:14,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:14,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:08:14,733 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:14,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:14,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1998309602, now seen corresponding path program 3 times [2024-10-31 22:08:14,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:14,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572977416] [2024-10-31 22:08:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:14,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:14,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:14,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:14,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572977416] [2024-10-31 22:08:14,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572977416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:14,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:14,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:14,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582744243] [2024-10-31 22:08:14,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:14,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:14,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:14,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:14,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:14,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:14,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 59 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-10-31 22:08:14,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:14,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:14,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:17,080 INFO L124 PetriNetUnfolderBase]: 12038/18592 cut-off events. [2024-10-31 22:08:17,080 INFO L125 PetriNetUnfolderBase]: For 8512/8623 co-relation queries the response was YES. [2024-10-31 22:08:17,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47121 conditions, 18592 events. 12038/18592 cut-off events. For 8512/8623 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 130710 event pairs, 3299 based on Foata normal form. 230/18439 useless extension candidates. Maximal degree in co-relation 12290. Up to 5559 conditions per place. [2024-10-31 22:08:17,213 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 76 selfloop transitions, 22 changer transitions 0/111 dead transitions. [2024-10-31 22:08:17,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 111 transitions, 561 flow [2024-10-31 22:08:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:08:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:08:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2024-10-31 22:08:17,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7191489361702128 [2024-10-31 22:08:17,216 INFO L175 Difference]: Start difference. First operand has 53 places, 59 transitions, 214 flow. Second operand 5 states and 169 transitions. [2024-10-31 22:08:17,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 111 transitions, 561 flow [2024-10-31 22:08:17,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 111 transitions, 561 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:08:17,225 INFO L231 Difference]: Finished difference. Result has 59 places, 65 transitions, 311 flow [2024-10-31 22:08:17,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=59, PETRI_TRANSITIONS=65} [2024-10-31 22:08:17,226 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 4 predicate places. [2024-10-31 22:08:17,228 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 65 transitions, 311 flow [2024-10-31 22:08:17,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-10-31 22:08:17,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:17,229 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:17,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:08:17,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:17,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:17,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1962872220, now seen corresponding path program 4 times [2024-10-31 22:08:17,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:17,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79815741] [2024-10-31 22:08:17,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:17,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:17,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:17,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79815741] [2024-10-31 22:08:17,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79815741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:17,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:17,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:08:17,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017978012] [2024-10-31 22:08:17,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:17,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:17,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:17,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:17,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:17,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:17,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 65 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-31 22:08:17,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:17,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:17,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:19,704 INFO L124 PetriNetUnfolderBase]: 12179/19174 cut-off events. [2024-10-31 22:08:19,704 INFO L125 PetriNetUnfolderBase]: For 17286/17487 co-relation queries the response was YES. [2024-10-31 22:08:19,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53550 conditions, 19174 events. 12179/19174 cut-off events. For 17286/17487 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 138158 event pairs, 2473 based on Foata normal form. 452/19196 useless extension candidates. Maximal degree in co-relation 14140. Up to 6821 conditions per place. [2024-10-31 22:08:19,868 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 93 selfloop transitions, 59 changer transitions 5/170 dead transitions. [2024-10-31 22:08:19,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 170 transitions, 1035 flow [2024-10-31 22:08:19,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:19,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:08:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-10-31 22:08:19,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.74822695035461 [2024-10-31 22:08:19,871 INFO L175 Difference]: Start difference. First operand has 59 places, 65 transitions, 311 flow. Second operand 6 states and 211 transitions. [2024-10-31 22:08:19,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 170 transitions, 1035 flow [2024-10-31 22:08:19,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 170 transitions, 994 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:19,885 INFO L231 Difference]: Finished difference. Result has 65 places, 102 transitions, 718 flow [2024-10-31 22:08:19,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=718, PETRI_PLACES=65, PETRI_TRANSITIONS=102} [2024-10-31 22:08:19,886 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places. [2024-10-31 22:08:19,887 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 102 transitions, 718 flow [2024-10-31 22:08:19,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-31 22:08:19,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:19,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:19,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:08:19,888 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:19,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:19,889 INFO L85 PathProgramCache]: Analyzing trace with hash 506356128, now seen corresponding path program 5 times [2024-10-31 22:08:19,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:19,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924042261] [2024-10-31 22:08:19,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:19,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:20,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:20,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:20,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924042261] [2024-10-31 22:08:20,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924042261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:20,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:20,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:20,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970237972] [2024-10-31 22:08:20,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:20,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:20,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:20,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:20,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:20,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:20,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 102 transitions, 718 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-10-31 22:08:20,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:20,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:20,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:21,842 INFO L124 PetriNetUnfolderBase]: 10687/17379 cut-off events. [2024-10-31 22:08:21,842 INFO L125 PetriNetUnfolderBase]: For 35159/35549 co-relation queries the response was YES. [2024-10-31 22:08:21,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55451 conditions, 17379 events. 10687/17379 cut-off events. For 35159/35549 co-relation queries the response was YES. Maximal size of possible extension queue 822. Compared 128049 event pairs, 2687 based on Foata normal form. 386/17521 useless extension candidates. Maximal degree in co-relation 12064. Up to 7287 conditions per place. [2024-10-31 22:08:22,008 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 93 selfloop transitions, 45 changer transitions 4/155 dead transitions. [2024-10-31 22:08:22,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 155 transitions, 1240 flow [2024-10-31 22:08:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:08:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:08:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-10-31 22:08:22,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7106382978723405 [2024-10-31 22:08:22,011 INFO L175 Difference]: Start difference. First operand has 65 places, 102 transitions, 718 flow. Second operand 5 states and 167 transitions. [2024-10-31 22:08:22,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 155 transitions, 1240 flow [2024-10-31 22:08:22,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 155 transitions, 1226 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-10-31 22:08:22,050 INFO L231 Difference]: Finished difference. Result has 71 places, 111 transitions, 931 flow [2024-10-31 22:08:22,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=931, PETRI_PLACES=71, PETRI_TRANSITIONS=111} [2024-10-31 22:08:22,052 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2024-10-31 22:08:22,052 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 111 transitions, 931 flow [2024-10-31 22:08:22,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-10-31 22:08:22,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:22,053 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:22,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:08:22,053 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:22,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:22,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1603875200, now seen corresponding path program 6 times [2024-10-31 22:08:22,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:22,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57545073] [2024-10-31 22:08:22,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:22,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:22,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:22,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57545073] [2024-10-31 22:08:22,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57545073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:22,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:22,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:08:22,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724056594] [2024-10-31 22:08:22,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:22,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:22,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:22,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:22,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:22,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:22,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 111 transitions, 931 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-31 22:08:22,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:22,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:22,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:24,070 INFO L124 PetriNetUnfolderBase]: 9713/15442 cut-off events. [2024-10-31 22:08:24,071 INFO L125 PetriNetUnfolderBase]: For 41725/42451 co-relation queries the response was YES. [2024-10-31 22:08:24,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53652 conditions, 15442 events. 9713/15442 cut-off events. For 41725/42451 co-relation queries the response was YES. Maximal size of possible extension queue 747. Compared 108765 event pairs, 1954 based on Foata normal form. 421/15466 useless extension candidates. Maximal degree in co-relation 16299. Up to 5203 conditions per place. [2024-10-31 22:08:24,158 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 88 selfloop transitions, 70 changer transitions 2/173 dead transitions. [2024-10-31 22:08:24,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 173 transitions, 1492 flow [2024-10-31 22:08:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:24,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:08:24,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2024-10-31 22:08:24,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7269503546099291 [2024-10-31 22:08:24,161 INFO L175 Difference]: Start difference. First operand has 71 places, 111 transitions, 931 flow. Second operand 6 states and 205 transitions. [2024-10-31 22:08:24,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 173 transitions, 1492 flow [2024-10-31 22:08:24,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 173 transitions, 1435 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:24,196 INFO L231 Difference]: Finished difference. Result has 75 places, 114 transitions, 1086 flow [2024-10-31 22:08:24,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1086, PETRI_PLACES=75, PETRI_TRANSITIONS=114} [2024-10-31 22:08:24,197 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 20 predicate places. [2024-10-31 22:08:24,198 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 114 transitions, 1086 flow [2024-10-31 22:08:24,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-31 22:08:24,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:24,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:24,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:08:24,199 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:24,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:24,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1855481396, now seen corresponding path program 7 times [2024-10-31 22:08:24,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:24,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823167689] [2024-10-31 22:08:24,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:24,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:24,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:24,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:24,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823167689] [2024-10-31 22:08:24,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823167689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:24,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:24,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104967380] [2024-10-31 22:08:24,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:24,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:08:24,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:24,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:08:24,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:24,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:24,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 114 transitions, 1086 flow. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-10-31 22:08:24,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:24,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:24,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:26,533 INFO L124 PetriNetUnfolderBase]: 9975/16000 cut-off events. [2024-10-31 22:08:26,533 INFO L125 PetriNetUnfolderBase]: For 55942/56755 co-relation queries the response was YES. [2024-10-31 22:08:26,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58627 conditions, 16000 events. 9975/16000 cut-off events. For 55942/56755 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 114978 event pairs, 2068 based on Foata normal form. 445/16034 useless extension candidates. Maximal degree in co-relation 18302. Up to 5235 conditions per place. [2024-10-31 22:08:26,641 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 106 selfloop transitions, 89 changer transitions 1/209 dead transitions. [2024-10-31 22:08:26,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 209 transitions, 2005 flow [2024-10-31 22:08:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:08:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:08:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2024-10-31 22:08:26,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.699468085106383 [2024-10-31 22:08:26,643 INFO L175 Difference]: Start difference. First operand has 75 places, 114 transitions, 1086 flow. Second operand 8 states and 263 transitions. [2024-10-31 22:08:26,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 209 transitions, 2005 flow [2024-10-31 22:08:26,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 209 transitions, 1820 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-31 22:08:26,708 INFO L231 Difference]: Finished difference. Result has 79 places, 133 transitions, 1401 flow [2024-10-31 22:08:26,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1401, PETRI_PLACES=79, PETRI_TRANSITIONS=133} [2024-10-31 22:08:26,709 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 24 predicate places. [2024-10-31 22:08:26,709 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 133 transitions, 1401 flow [2024-10-31 22:08:26,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-10-31 22:08:26,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:26,710 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:26,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:08:26,711 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:26,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:26,711 INFO L85 PathProgramCache]: Analyzing trace with hash 147208774, now seen corresponding path program 8 times [2024-10-31 22:08:26,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:26,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340157401] [2024-10-31 22:08:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:26,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:26,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:26,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:26,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340157401] [2024-10-31 22:08:26,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340157401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:26,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:26,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:26,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089881211] [2024-10-31 22:08:26,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:26,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:08:26,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:26,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:08:26,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:26,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:26,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 133 transitions, 1401 flow. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-10-31 22:08:26,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:26,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:26,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:28,454 INFO L124 PetriNetUnfolderBase]: 8918/14509 cut-off events. [2024-10-31 22:08:28,455 INFO L125 PetriNetUnfolderBase]: For 48999/49580 co-relation queries the response was YES. [2024-10-31 22:08:28,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53517 conditions, 14509 events. 8918/14509 cut-off events. For 48999/49580 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 104000 event pairs, 1840 based on Foata normal form. 482/14662 useless extension candidates. Maximal degree in co-relation 15852. Up to 4669 conditions per place. [2024-10-31 22:08:28,539 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 102 selfloop transitions, 96 changer transitions 15/226 dead transitions. [2024-10-31 22:08:28,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 226 transitions, 2299 flow [2024-10-31 22:08:28,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:08:28,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:08:28,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2024-10-31 22:08:28,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7101063829787234 [2024-10-31 22:08:28,541 INFO L175 Difference]: Start difference. First operand has 79 places, 133 transitions, 1401 flow. Second operand 8 states and 267 transitions. [2024-10-31 22:08:28,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 226 transitions, 2299 flow [2024-10-31 22:08:28,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 226 transitions, 2169 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:08:28,607 INFO L231 Difference]: Finished difference. Result has 85 places, 140 transitions, 1595 flow [2024-10-31 22:08:28,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1235, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1595, PETRI_PLACES=85, PETRI_TRANSITIONS=140} [2024-10-31 22:08:28,608 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 30 predicate places. [2024-10-31 22:08:28,609 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 140 transitions, 1595 flow [2024-10-31 22:08:28,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-10-31 22:08:28,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:28,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:28,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:08:28,610 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:28,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:28,610 INFO L85 PathProgramCache]: Analyzing trace with hash -27328696, now seen corresponding path program 9 times [2024-10-31 22:08:28,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:28,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596327519] [2024-10-31 22:08:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:28,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:28,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:28,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596327519] [2024-10-31 22:08:28,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596327519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:28,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:28,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:28,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762226760] [2024-10-31 22:08:28,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:28,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:08:28,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:28,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:08:28,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:28,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:28,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 140 transitions, 1595 flow. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-10-31 22:08:28,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:28,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:28,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:30,429 INFO L124 PetriNetUnfolderBase]: 7433/12350 cut-off events. [2024-10-31 22:08:30,429 INFO L125 PetriNetUnfolderBase]: For 47073/47455 co-relation queries the response was YES. [2024-10-31 22:08:30,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47332 conditions, 12350 events. 7433/12350 cut-off events. For 47073/47455 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 88076 event pairs, 1590 based on Foata normal form. 335/12497 useless extension candidates. Maximal degree in co-relation 14190. Up to 3795 conditions per place. [2024-10-31 22:08:30,514 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 102 selfloop transitions, 106 changer transitions 22/243 dead transitions. [2024-10-31 22:08:30,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 243 transitions, 2756 flow [2024-10-31 22:08:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:08:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:08:30,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2024-10-31 22:08:30,516 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7021276595744681 [2024-10-31 22:08:30,517 INFO L175 Difference]: Start difference. First operand has 85 places, 140 transitions, 1595 flow. Second operand 8 states and 264 transitions. [2024-10-31 22:08:30,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 243 transitions, 2756 flow [2024-10-31 22:08:30,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 243 transitions, 2715 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:30,583 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 1949 flow [2024-10-31 22:08:30,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1557, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1949, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2024-10-31 22:08:30,584 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 37 predicate places. [2024-10-31 22:08:30,584 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 1949 flow [2024-10-31 22:08:30,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-10-31 22:08:30,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:30,585 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:30,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:08:30,586 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:30,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:30,586 INFO L85 PathProgramCache]: Analyzing trace with hash -912931568, now seen corresponding path program 10 times [2024-10-31 22:08:30,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:30,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442762908] [2024-10-31 22:08:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:30,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:30,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:30,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442762908] [2024-10-31 22:08:30,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442762908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:30,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:30,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:30,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429021151] [2024-10-31 22:08:30,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:30,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:08:30,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:30,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:08:30,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:30,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:30,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 1949 flow. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-10-31 22:08:30,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:30,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:30,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:32,005 INFO L124 PetriNetUnfolderBase]: 6761/11208 cut-off events. [2024-10-31 22:08:32,006 INFO L125 PetriNetUnfolderBase]: For 51065/51363 co-relation queries the response was YES. [2024-10-31 22:08:32,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44290 conditions, 11208 events. 6761/11208 cut-off events. For 51065/51363 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 78337 event pairs, 1530 based on Foata normal form. 162/11190 useless extension candidates. Maximal degree in co-relation 15457. Up to 3855 conditions per place. [2024-10-31 22:08:32,069 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 84 selfloop transitions, 138 changer transitions 13/248 dead transitions. [2024-10-31 22:08:32,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 248 transitions, 3086 flow [2024-10-31 22:08:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:08:32,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:08:32,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 249 transitions. [2024-10-31 22:08:32,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6622340425531915 [2024-10-31 22:08:32,071 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 1949 flow. Second operand 8 states and 249 transitions. [2024-10-31 22:08:32,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 248 transitions, 3086 flow [2024-10-31 22:08:32,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 248 transitions, 3031 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:32,173 INFO L231 Difference]: Finished difference. Result has 98 places, 175 transitions, 2529 flow [2024-10-31 22:08:32,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1909, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2529, PETRI_PLACES=98, PETRI_TRANSITIONS=175} [2024-10-31 22:08:32,174 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 43 predicate places. [2024-10-31 22:08:32,175 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 175 transitions, 2529 flow [2024-10-31 22:08:32,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-10-31 22:08:32,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:32,176 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:32,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:08:32,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:08:32,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:32,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1167246352, now seen corresponding path program 11 times [2024-10-31 22:08:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:32,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306653085] [2024-10-31 22:08:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:32,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:32,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:32,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306653085] [2024-10-31 22:08:32,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306653085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:32,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:32,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:08:32,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412769475] [2024-10-31 22:08:32,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:32,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:08:32,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:32,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:08:32,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:08:32,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-10-31 22:08:32,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 175 transitions, 2529 flow. Second operand has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:32,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:32,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-10-31 22:08:32,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand