./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX --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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:43:45,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:43:45,848 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 17:43:45,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:43:45,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:43:45,908 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:43:45,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:43:45,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:43:45,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:43:45,911 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:43:45,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:43:45,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:43:45,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:43:45,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:43:45,913 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:43:45,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:43:45,914 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:43:45,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:43:45,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:43:45,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:43:45,925 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 17:43:45,929 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 17:43:45,930 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 17:43:45,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:43:45,930 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:43:45,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:43:45,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:43:45,931 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:43:45,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:43:45,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:43:45,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:43:45,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:43:45,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:43:45,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:43:45,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:43:45,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:43:45,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:43:45,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:43:45,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:43:45,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:43:45,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:43:45,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:43:45,939 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_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-08 17:43:46,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:43:46,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:43:46,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:43:46,276 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:43:46,276 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:43:46,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i Unable to find full path for "g++" [2024-11-08 17:43:48,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:43:48,694 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:43:48,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-08 17:43:48,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/data/da12ef821/80846882fe374d26955e52d8eba0f50f/FLAG8613e1406 [2024-11-08 17:43:48,905 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/data/da12ef821/80846882fe374d26955e52d8eba0f50f [2024-11-08 17:43:48,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:43:48,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:43:48,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:43:48,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:43:48,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:43:48,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:43:48" (1/1) ... [2024-11-08 17:43:48,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cdd7b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:48, skipping insertion in model container [2024-11-08 17:43:48,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:43:48" (1/1) ... [2024-11-08 17:43:48,977 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:43:49,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:43:49,686 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:43:49,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:43:49,832 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:43:49,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49 WrapperNode [2024-11-08 17:43:49,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:43:49,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:43:49,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:43:49,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:43:49,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,888 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2024-11-08 17:43:49,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:43:49,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:43:49,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:43:49,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:43:49,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,907 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,921 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]. [2024-11-08 17:43:49,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,927 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:43:49,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:43:49,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:43:49,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:43:49,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (1/1) ... [2024-11-08 17:43:49,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:43:49,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:43:49,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:43:49,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:43:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 17:43:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 17:43:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-08 17:43:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-08 17:43:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:43:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:43:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:43:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:43:50,022 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:43:50,247 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:43:50,249 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:43:50,478 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:43:50,479 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:43:50,885 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:43:50,886 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:43:50,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:43:50 BoogieIcfgContainer [2024-11-08 17:43:50,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:43:50,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:43:50,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:43:50,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:43:50,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:43:48" (1/3) ... [2024-11-08 17:43:50,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68658d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:43:50, skipping insertion in model container [2024-11-08 17:43:50,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:49" (2/3) ... [2024-11-08 17:43:50,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68658d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:43:50, skipping insertion in model container [2024-11-08 17:43:50,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:43:50" (3/3) ... [2024-11-08 17:43:50,897 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-08 17:43:50,916 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:43:50,917 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:43:50,918 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:43:50,966 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:43:51,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 32 transitions, 71 flow [2024-11-08 17:43:51,040 INFO L124 PetriNetUnfolderBase]: 6/31 cut-off events. [2024-11-08 17:43:51,040 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:43:51,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 31 events. 6/31 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2024-11-08 17:43:51,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 32 transitions, 71 flow [2024-11-08 17:43:51,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 30 transitions, 66 flow [2024-11-08 17:43:51,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:43:51,063 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;@1cdb08a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:43:51,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-08 17:43:51,075 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:43:51,075 INFO L124 PetriNetUnfolderBase]: 6/28 cut-off events. [2024-11-08 17:43:51,075 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:43:51,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:43:51,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:51,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:43:51,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:51,082 INFO L85 PathProgramCache]: Analyzing trace with hash -29949632, now seen corresponding path program 1 times [2024-11-08 17:43:51,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:51,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406118512] [2024-11-08 17:43:51,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:51,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:43:51,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:51,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406118512] [2024-11-08 17:43:51,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406118512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:43:51,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:43:51,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:43:51,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884210441] [2024-11-08 17:43:51,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:43:51,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:43:51,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:51,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:43:51,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:43:51,603 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-08 17:43:51,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:51,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:43:51,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-08 17:43:51,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:43:51,695 INFO L124 PetriNetUnfolderBase]: 22/74 cut-off events. [2024-11-08 17:43:51,696 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:43:51,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 74 events. 22/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 6 based on Foata normal form. 11/83 useless extension candidates. Maximal degree in co-relation 102. Up to 34 conditions per place. [2024-11-08 17:43:51,700 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 16 selfloop transitions, 2 changer transitions 1/30 dead transitions. [2024-11-08 17:43:51,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 30 transitions, 102 flow [2024-11-08 17:43:51,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:43:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:43:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-08 17:43:51,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2024-11-08 17:43:51,716 INFO L175 Difference]: Start difference. First operand has 28 places, 30 transitions, 66 flow. Second operand 3 states and 65 transitions. [2024-11-08 17:43:51,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 30 transitions, 102 flow [2024-11-08 17:43:51,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:43:51,723 INFO L231 Difference]: Finished difference. Result has 26 places, 25 transitions, 64 flow [2024-11-08 17:43:51,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=25} [2024-11-08 17:43:51,731 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-11-08 17:43:51,732 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 25 transitions, 64 flow [2024-11-08 17:43:51,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:51,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:43:51,732 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:51,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:43:51,733 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:43:51,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:51,733 INFO L85 PathProgramCache]: Analyzing trace with hash -364585358, now seen corresponding path program 1 times [2024-11-08 17:43:51,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:51,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305269499] [2024-11-08 17:43:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:51,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:43:51,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:51,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305269499] [2024-11-08 17:43:51,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305269499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:43:51,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:43:51,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:43:51,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867580025] [2024-11-08 17:43:51,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:43:51,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:43:51,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:51,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:43:51,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:43:51,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-08 17:43:51,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 25 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:51,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:43:51,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-08 17:43:51,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:43:51,909 INFO L124 PetriNetUnfolderBase]: 28/92 cut-off events. [2024-11-08 17:43:51,909 INFO L125 PetriNetUnfolderBase]: For 33/34 co-relation queries the response was YES. [2024-11-08 17:43:51,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 92 events. 28/92 cut-off events. For 33/34 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 232 event pairs, 8 based on Foata normal form. 6/91 useless extension candidates. Maximal degree in co-relation 35. Up to 39 conditions per place. [2024-11-08 17:43:51,911 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 17 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2024-11-08 17:43:51,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 30 transitions, 120 flow [2024-11-08 17:43:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:43:51,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:43:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2024-11-08 17:43:51,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6354166666666666 [2024-11-08 17:43:51,913 INFO L175 Difference]: Start difference. First operand has 26 places, 25 transitions, 64 flow. Second operand 3 states and 61 transitions. [2024-11-08 17:43:51,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 30 transitions, 120 flow [2024-11-08 17:43:51,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 30 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:43:51,915 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 76 flow [2024-11-08 17:43:51,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=27, PETRI_TRANSITIONS=26} [2024-11-08 17:43:51,916 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2024-11-08 17:43:51,917 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 76 flow [2024-11-08 17:43:51,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:51,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:43:51,917 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] [2024-11-08 17:43:51,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:43:51,918 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:43:51,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:51,918 INFO L85 PathProgramCache]: Analyzing trace with hash 792315857, now seen corresponding path program 1 times [2024-11-08 17:43:51,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:51,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258803548] [2024-11-08 17:43:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:51,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:43:52,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:52,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258803548] [2024-11-08 17:43:52,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258803548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:43:52,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126313693] [2024-11-08 17:43:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:52,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:52,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:43:52,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:43:52,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:43:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:52,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:43:52,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:43:52,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:43:52,409 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:43:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:43:52,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126313693] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:43:52,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:43:52,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-08 17:43:52,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203425559] [2024-11-08 17:43:52,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:43:52,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:43:52,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:52,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:43:52,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:43:52,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:43:52,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 76 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:52,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:43:52,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:43:52,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:43:52,639 INFO L124 PetriNetUnfolderBase]: 63/167 cut-off events. [2024-11-08 17:43:52,640 INFO L125 PetriNetUnfolderBase]: For 80/93 co-relation queries the response was YES. [2024-11-08 17:43:52,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 167 events. 63/167 cut-off events. For 80/93 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 428 event pairs, 6 based on Foata normal form. 18/177 useless extension candidates. Maximal degree in co-relation 135. Up to 60 conditions per place. [2024-11-08 17:43:52,642 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 34 selfloop transitions, 6 changer transitions 0/49 dead transitions. [2024-11-08 17:43:52,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 49 transitions, 228 flow [2024-11-08 17:43:52,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:43:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:43:52,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2024-11-08 17:43:52,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5885416666666666 [2024-11-08 17:43:52,645 INFO L175 Difference]: Start difference. First operand has 27 places, 26 transitions, 76 flow. Second operand 6 states and 113 transitions. [2024-11-08 17:43:52,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 49 transitions, 228 flow [2024-11-08 17:43:52,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:43:52,648 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 110 flow [2024-11-08 17:43:52,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=110, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-11-08 17:43:52,649 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2024-11-08 17:43:52,649 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 110 flow [2024-11-08 17:43:52,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:52,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:43:52,650 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:52,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:43:52,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:52,851 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:43:52,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash 945123166, now seen corresponding path program 2 times [2024-11-08 17:43:52,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:52,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725726685] [2024-11-08 17:43:52,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:52,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 17:43:52,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:52,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725726685] [2024-11-08 17:43:52,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725726685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:43:52,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042400957] [2024-11-08 17:43:52,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:43:52,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:52,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:43:52,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:43:52,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:43:53,173 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:43:53,173 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:43:53,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:43:53,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:43:53,293 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:43:53,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:43:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:43:53,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042400957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:43:53,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:43:53,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-08 17:43:53,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687454034] [2024-11-08 17:43:53,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:43:53,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 17:43:53,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:53,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 17:43:53,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:43:53,590 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-11-08 17:43:53,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 110 flow. Second operand has 14 states, 14 states have (on average 14.071428571428571) internal successors, (197), 14 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:53,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:43:53,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-11-08 17:43:53,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:43:54,303 INFO L124 PetriNetUnfolderBase]: 265/628 cut-off events. [2024-11-08 17:43:54,303 INFO L125 PetriNetUnfolderBase]: For 727/727 co-relation queries the response was YES. [2024-11-08 17:43:54,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 628 events. 265/628 cut-off events. For 727/727 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2340 event pairs, 6 based on Foata normal form. 118/743 useless extension candidates. Maximal degree in co-relation 463. Up to 221 conditions per place. [2024-11-08 17:43:54,311 INFO L140 encePairwiseOnDemand]: 24/32 looper letters, 134 selfloop transitions, 69 changer transitions 0/210 dead transitions. [2024-11-08 17:43:54,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 210 transitions, 1284 flow [2024-11-08 17:43:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-08 17:43:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-08 17:43:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 583 transitions. [2024-11-08 17:43:54,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5358455882352942 [2024-11-08 17:43:54,316 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 110 flow. Second operand 34 states and 583 transitions. [2024-11-08 17:43:54,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 210 transitions, 1284 flow [2024-11-08 17:43:54,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 210 transitions, 1224 flow, removed 27 selfloop flow, removed 1 redundant places. [2024-11-08 17:43:54,325 INFO L231 Difference]: Finished difference. Result has 92 places, 90 transitions, 764 flow [2024-11-08 17:43:54,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=764, PETRI_PLACES=92, PETRI_TRANSITIONS=90} [2024-11-08 17:43:54,326 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 64 predicate places. [2024-11-08 17:43:54,327 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 90 transitions, 764 flow [2024-11-08 17:43:54,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.071428571428571) internal successors, (197), 14 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:54,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:43:54,328 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:54,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:43:54,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:54,529 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:43:54,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1638500006, now seen corresponding path program 3 times [2024-11-08 17:43:54,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515703217] [2024-11-08 17:43:54,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:54,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-08 17:43:54,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515703217] [2024-11-08 17:43:54,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515703217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:43:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847410120] [2024-11-08 17:43:54,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 17:43:54,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:54,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:43:54,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:43:54,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:43:55,066 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-08 17:43:55,067 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:43:55,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:43:55,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:43:55,242 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-08 17:43:55,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:43:55,456 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-08 17:43:55,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847410120] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:43:55,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:43:55,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-08 17:43:55,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472276813] [2024-11-08 17:43:55,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:43:55,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:43:55,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:55,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:43:55,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:43:55,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:43:55,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 90 transitions, 764 flow. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:55,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:43:55,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:43:55,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:43:55,961 INFO L124 PetriNetUnfolderBase]: 504/1536 cut-off events. [2024-11-08 17:43:55,962 INFO L125 PetriNetUnfolderBase]: For 26479/26587 co-relation queries the response was YES. [2024-11-08 17:43:55,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6008 conditions, 1536 events. 504/1536 cut-off events. For 26479/26587 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8694 event pairs, 147 based on Foata normal form. 240/1691 useless extension candidates. Maximal degree in co-relation 5506. Up to 242 conditions per place. [2024-11-08 17:43:55,986 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 109 selfloop transitions, 38 changer transitions 0/159 dead transitions. [2024-11-08 17:43:55,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 159 transitions, 1564 flow [2024-11-08 17:43:55,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:43:55,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 17:43:55,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2024-11-08 17:43:55,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6171875 [2024-11-08 17:43:55,989 INFO L175 Difference]: Start difference. First operand has 92 places, 90 transitions, 764 flow. Second operand 8 states and 158 transitions. [2024-11-08 17:43:55,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 159 transitions, 1564 flow [2024-11-08 17:43:56,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 159 transitions, 1478 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-08 17:43:56,038 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 874 flow [2024-11-08 17:43:56,040 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=874, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2024-11-08 17:43:56,041 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 72 predicate places. [2024-11-08 17:43:56,043 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 874 flow [2024-11-08 17:43:56,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:56,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:43:56,044 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:56,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 17:43:56,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:56,245 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:43:56,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:56,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1170467382, now seen corresponding path program 4 times [2024-11-08 17:43:56,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:56,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017155627] [2024-11-08 17:43:56,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:56,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 16 proven. 280 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 17:43:56,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:56,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017155627] [2024-11-08 17:43:56,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017155627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:43:56,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970009201] [2024-11-08 17:43:56,660 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 17:43:56,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:56,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:43:56,662 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:43:56,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:43:56,891 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 17:43:56,891 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:43:56,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 17:43:56,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:43:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 16 proven. 280 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 17:43:57,044 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:43:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 16 proven. 280 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 17:43:57,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970009201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:43:57,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:43:57,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-11-08 17:43:57,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317989541] [2024-11-08 17:43:57,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:43:57,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:43:57,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:57,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:43:57,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:43:57,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:43:57,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 874 flow. Second operand has 23 states, 23 states have (on average 16.08695652173913) internal successors, (370), 23 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:57,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:43:57,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:43:57,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:43:58,122 INFO L124 PetriNetUnfolderBase]: 597/1630 cut-off events. [2024-11-08 17:43:58,123 INFO L125 PetriNetUnfolderBase]: For 58977/59174 co-relation queries the response was YES. [2024-11-08 17:43:58,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10148 conditions, 1630 events. 597/1630 cut-off events. For 58977/59174 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10138 event pairs, 29 based on Foata normal form. 86/1694 useless extension candidates. Maximal degree in co-relation 9155. Up to 588 conditions per place. [2024-11-08 17:43:58,148 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 264 selfloop transitions, 66 changer transitions 0/339 dead transitions. [2024-11-08 17:43:58,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 339 transitions, 5242 flow [2024-11-08 17:43:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:43:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-08 17:43:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 405 transitions. [2024-11-08 17:43:58,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5752840909090909 [2024-11-08 17:43:58,151 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 874 flow. Second operand 22 states and 405 transitions. [2024-11-08 17:43:58,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 339 transitions, 5242 flow [2024-11-08 17:43:58,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 339 transitions, 4278 flow, removed 420 selfloop flow, removed 2 redundant places. [2024-11-08 17:43:58,211 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 1350 flow [2024-11-08 17:43:58,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1350, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2024-11-08 17:43:58,212 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 102 predicate places. [2024-11-08 17:43:58,212 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 1350 flow [2024-11-08 17:43:58,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 16.08695652173913) internal successors, (370), 23 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:58,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:43:58,213 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:58,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:43:58,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:58,418 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:43:58,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:58,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1374155428, now seen corresponding path program 5 times [2024-11-08 17:43:58,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:58,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65689637] [2024-11-08 17:43:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:58,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 17:43:58,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:58,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65689637] [2024-11-08 17:43:58,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65689637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:43:58,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338624236] [2024-11-08 17:43:58,844 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 17:43:58,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:43:58,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:43:58,846 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:43:58,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:43:59,085 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2024-11-08 17:43:59,086 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:43:59,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:43:59,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:43:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 17:43:59,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:43:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 17:43:59,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338624236] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:43:59,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:43:59,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-08 17:43:59,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635734663] [2024-11-08 17:43:59,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:43:59,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 17:43:59,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:59,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 17:43:59,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:43:59,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:43:59,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 1350 flow. Second operand has 17 states, 17 states have (on average 15.352941176470589) internal successors, (261), 17 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:59,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:43:59,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:43:59,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:01,536 INFO L124 PetriNetUnfolderBase]: 2017/5289 cut-off events. [2024-11-08 17:44:01,536 INFO L125 PetriNetUnfolderBase]: For 73183/73435 co-relation queries the response was YES. [2024-11-08 17:44:01,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23322 conditions, 5289 events. 2017/5289 cut-off events. For 73183/73435 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 38045 event pairs, 273 based on Foata normal form. 512/5460 useless extension candidates. Maximal degree in co-relation 22138. Up to 945 conditions per place. [2024-11-08 17:44:01,636 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 379 selfloop transitions, 46 changer transitions 0/440 dead transitions. [2024-11-08 17:44:01,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 440 transitions, 5630 flow [2024-11-08 17:44:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 17:44:01,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-08 17:44:01,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 310 transitions. [2024-11-08 17:44:01,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.60546875 [2024-11-08 17:44:01,639 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 1350 flow. Second operand 16 states and 310 transitions. [2024-11-08 17:44:01,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 440 transitions, 5630 flow [2024-11-08 17:44:01,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 440 transitions, 5360 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-11-08 17:44:01,836 INFO L231 Difference]: Finished difference. Result has 145 places, 135 transitions, 1602 flow [2024-11-08 17:44:01,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1296, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1602, PETRI_PLACES=145, PETRI_TRANSITIONS=135} [2024-11-08 17:44:01,839 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 117 predicate places. [2024-11-08 17:44:01,839 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 135 transitions, 1602 flow [2024-11-08 17:44:01,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 15.352941176470589) internal successors, (261), 17 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:01,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:01,840 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:01,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:44:02,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:02,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:02,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:02,042 INFO L85 PathProgramCache]: Analyzing trace with hash -874303134, now seen corresponding path program 6 times [2024-11-08 17:44:02,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:44:02,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292641578] [2024-11-08 17:44:02,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:44:02,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:44:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:44:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 17:44:02,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:44:02,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292641578] [2024-11-08 17:44:02,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292641578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:44:02,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055715265] [2024-11-08 17:44:02,696 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 17:44:02,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:02,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:02,700 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:02,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:44:02,950 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-11-08 17:44:02,951 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:44:02,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:44:02,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:03,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 17:44:03,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:44:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 17:44:03,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055715265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:44:03,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:44:03,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-08 17:44:03,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490809820] [2024-11-08 17:44:03,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:44:03,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:44:03,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:44:03,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:44:03,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:44:03,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:44:03,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 135 transitions, 1602 flow. Second operand has 23 states, 23 states have (on average 15.304347826086957) internal successors, (352), 23 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:03,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:03,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:44:03,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:06,037 INFO L124 PetriNetUnfolderBase]: 2814/7123 cut-off events. [2024-11-08 17:44:06,038 INFO L125 PetriNetUnfolderBase]: For 137061/137443 co-relation queries the response was YES. [2024-11-08 17:44:06,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34819 conditions, 7123 events. 2814/7123 cut-off events. For 137061/137443 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 54020 event pairs, 266 based on Foata normal form. 490/7161 useless extension candidates. Maximal degree in co-relation 32011. Up to 1323 conditions per place. [2024-11-08 17:44:06,260 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 529 selfloop transitions, 52 changer transitions 0/596 dead transitions. [2024-11-08 17:44:06,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 596 transitions, 7518 flow [2024-11-08 17:44:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:44:06,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-08 17:44:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 422 transitions. [2024-11-08 17:44:06,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5994318181818182 [2024-11-08 17:44:06,263 INFO L175 Difference]: Start difference. First operand has 145 places, 135 transitions, 1602 flow. Second operand 22 states and 422 transitions. [2024-11-08 17:44:06,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 596 transitions, 7518 flow [2024-11-08 17:44:06,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 596 transitions, 7458 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:44:06,418 INFO L231 Difference]: Finished difference. Result has 168 places, 142 transitions, 1840 flow [2024-11-08 17:44:06,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1542, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1840, PETRI_PLACES=168, PETRI_TRANSITIONS=142} [2024-11-08 17:44:06,422 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 140 predicate places. [2024-11-08 17:44:06,422 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 142 transitions, 1840 flow [2024-11-08 17:44:06,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 15.304347826086957) internal successors, (352), 23 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:06,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:06,423 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:06,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 17:44:06,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:06,629 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:06,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1908018508, now seen corresponding path program 7 times [2024-11-08 17:44:06,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:44:06,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872275187] [2024-11-08 17:44:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:44:06,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:44:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:44:06,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:44:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:44:06,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:44:06,927 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:44:06,928 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-11-08 17:44:06,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2024-11-08 17:44:06,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-08 17:44:06,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:44:06,934 INFO L407 BasicCegarLoop]: Path program histogram: [7, 1, 1] [2024-11-08 17:44:07,115 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 17:44:07,115 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:44:07,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:44:07 BasicIcfg [2024-11-08 17:44:07,123 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:44:07,124 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:44:07,125 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:44:07,126 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:44:07,126 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:43:50" (3/4) ... [2024-11-08 17:44:07,129 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:44:07,130 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:44:07,131 INFO L158 Benchmark]: Toolchain (without parser) took 18221.55ms. Allocated memory was 138.4MB in the beginning and 488.6MB in the end (delta: 350.2MB). Free memory was 97.8MB in the beginning and 168.1MB in the end (delta: -70.3MB). Peak memory consumption was 280.9MB. Max. memory is 16.1GB. [2024-11-08 17:44:07,131 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:44:07,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 922.91ms. Allocated memory is still 138.4MB. Free memory was 97.8MB in the beginning and 56.2MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-08 17:44:07,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.39ms. Allocated memory is still 138.4MB. Free memory was 56.2MB in the beginning and 53.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:44:07,134 INFO L158 Benchmark]: Boogie Preprocessor took 47.20ms. Allocated memory is still 138.4MB. Free memory was 53.0MB in the beginning and 50.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:44:07,134 INFO L158 Benchmark]: RCFGBuilder took 948.95ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 50.7MB in the beginning and 90.8MB in the end (delta: -40.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-08 17:44:07,134 INFO L158 Benchmark]: TraceAbstraction took 16235.45ms. Allocated memory was 176.2MB in the beginning and 488.6MB in the end (delta: 312.5MB). Free memory was 90.8MB in the beginning and 168.1MB in the end (delta: -77.2MB). Peak memory consumption was 234.2MB. Max. memory is 16.1GB. [2024-11-08 17:44:07,135 INFO L158 Benchmark]: Witness Printer took 6.22ms. Allocated memory is still 488.6MB. Free memory is still 168.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:44:07,136 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 922.91ms. Allocated memory is still 138.4MB. Free memory was 97.8MB in the beginning and 56.2MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.39ms. Allocated memory is still 138.4MB. Free memory was 56.2MB in the beginning and 53.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.20ms. Allocated memory is still 138.4MB. Free memory was 53.0MB in the beginning and 50.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 948.95ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 50.7MB in the beginning and 90.8MB in the end (delta: -40.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16235.45ms. Allocated memory was 176.2MB in the beginning and 488.6MB in the end (delta: 312.5MB). Free memory was 90.8MB in the beginning and 168.1MB in the end (delta: -77.2MB). Peak memory consumption was 234.2MB. Max. memory is 16.1GB. * Witness Printer took 6.22ms. Allocated memory is still 488.6MB. Free memory is still 168.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 12. Possible FailurePath: [L1320] 0 int myglobal; [L1321] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1340] 0 pthread_t mythread; [L1341] 0 int i; [L1342] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\old(arg)={0:0}, myglobal=0, mythread=-1] [L1324] 1 int i,j; [L1325] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, myglobal=0] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=0, myglobal=0] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=1, myglobal=1] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=1, j=2, myglobal=2] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=2, myglobal=2] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=2, myglobal=2] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=2, myglobal=2] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=2, myglobal=2] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=2, j=3, myglobal=3] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=3, myglobal=3] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=3, myglobal=3] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=3, myglobal=3] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=3, myglobal=3] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=4, myglobal=4] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=4, myglobal=4] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=4, myglobal=4] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=4, myglobal=4] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=4, myglobal=4] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=4, j=5, myglobal=5] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=5, myglobal=5] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=5, myglobal=5] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=5, myglobal=5] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=5, myglobal=5] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=5, j=6, myglobal=6] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=6, myglobal=6] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=6, myglobal=6] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=6, myglobal=6] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=6, myglobal=6] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=6, j=7, myglobal=7] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=7, myglobal=7] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=7, myglobal=7] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=7, myglobal=7] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=7, myglobal=7] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=7, j=8, myglobal=8] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=8, myglobal=8] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=8, myglobal=8] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=8, myglobal=8] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=8, myglobal=8] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=8, j=9, myglobal=9] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=9, myglobal=9] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=9, myglobal=9] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=9, myglobal=9] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=9, myglobal=9] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=9, j=10, myglobal=10] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=10, myglobal=10] [L1342] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) [L1352] 0 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=10, j=10, myglobal=10, mythread=-1] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=10, myglobal=10] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=10, myglobal=10] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=10, myglobal=10] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=10, j=11, myglobal=11] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=11, myglobal=11] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=11, myglobal=11] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=11, myglobal=11] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=11, myglobal=11] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=11, j=12, myglobal=12] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=12, myglobal=12] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=12, myglobal=12] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=12, myglobal=12] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=12, myglobal=12] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=12, j=13, myglobal=13] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=13, myglobal=13] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=13, myglobal=13] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=13, myglobal=13] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=13, myglobal=13] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=13, j=14, myglobal=14] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=14, myglobal=14] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=14, myglobal=14] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=14, myglobal=14] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=14, myglobal=14] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=14, j=15, myglobal=15] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=15, myglobal=15] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=15, myglobal=15] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=15, myglobal=15] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=15, myglobal=15] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=15, j=16, myglobal=16] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=16, myglobal=16] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=16, myglobal=16] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=16, myglobal=16] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=16, myglobal=16] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=16, j=17, myglobal=17] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=17, myglobal=17] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=17, myglobal=17] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=17, myglobal=17] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=17, myglobal=17] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=17, j=18, myglobal=18] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=18, myglobal=18] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=18, myglobal=18] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=18, myglobal=18] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=18, myglobal=18] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=18, j=19, myglobal=19] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=19, myglobal=19] [L1325] COND FALSE 1 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=19, myglobal=19] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=19, myglobal=19] [L1328] 1 j=myglobal VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=19, myglobal=19] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\old(arg)={0:0}, arg={0:0}, i=19, j=20, myglobal=20] [L1325] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, j=20, myglobal=20] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=20, j=20, myglobal=20, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=20, j=20, myglobal=20, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=0, i=20, j=20, myglobal=21, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=20, myglobal=21, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=20, myglobal=21, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=20, myglobal=21, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=1, i=20, j=20, myglobal=22, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=20, myglobal=22, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=20, myglobal=22, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=20, myglobal=22, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=2, i=20, j=20, myglobal=23, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=20, myglobal=23, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=20, myglobal=23, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=20, myglobal=23, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=3, j=20, myglobal=24, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=20, myglobal=24, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=20, myglobal=24, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=20, myglobal=24, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=4, j=20, myglobal=25, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=20, myglobal=25, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=20, myglobal=25, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=20, myglobal=25, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=5, j=20, myglobal=26, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=20, myglobal=26, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=20, myglobal=26, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=20, myglobal=26, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=6, j=20, myglobal=27, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=20, myglobal=27, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=20, myglobal=27, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=20, myglobal=27, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=7, j=20, myglobal=28, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=20, myglobal=28, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=20, myglobal=28, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=20, myglobal=28, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=8, j=20, myglobal=29, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=20, myglobal=29, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=20, myglobal=29, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=20, myglobal=29, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=9, j=20, myglobal=30, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=20, myglobal=30, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=20, myglobal=30, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=20, myglobal=30, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=10, i=20, j=20, myglobal=31, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=20, myglobal=31, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=20, myglobal=31, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=20, myglobal=31, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=11, i=20, j=20, myglobal=32, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=20, myglobal=32, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=20, myglobal=32, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=20, myglobal=32, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=12, i=20, j=20, myglobal=33, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=20, myglobal=33, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=20, myglobal=33, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=20, myglobal=33, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=13, i=20, j=20, myglobal=34, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=20, myglobal=34, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=20, myglobal=34, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=20, myglobal=34, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=14, i=20, j=20, myglobal=35, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=20, myglobal=35, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=20, myglobal=35, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=20, myglobal=35, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=15, i=20, j=20, myglobal=36, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=20, myglobal=36, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=20, myglobal=36, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=20, myglobal=36, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=16, i=20, j=20, myglobal=37, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=20, myglobal=37, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=20, myglobal=37, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=20, myglobal=37, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=17, i=20, j=20, myglobal=38, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=20, myglobal=38, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=20, myglobal=38, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=20, myglobal=38, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=18, i=20, j=20, myglobal=39, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=20, myglobal=39, mythread=-1] [L1352] COND FALSE 0 !(i<20) VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=20, myglobal=39, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=20, myglobal=39, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, i=19, i=20, j=20, myglobal=40, mythread=-1] [L1352] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=20, j=20, myglobal=40, mythread=-1] [L1352] COND TRUE 0 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, i=20, j=20, myglobal=40, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\old(arg)={0:0}, arg={0:0}, i=20, j=20, myglobal=40] [L1336] 1 return ((void *)0); [L1358] FCALL, JOIN 1 pthread_join ( mythread, ((void *)0) ) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=20, myglobal=40, mythread=-1] [L1358] COND FALSE 0 !(pthread_join ( mythread, ((void *)0) )) [L1362] CALL 0 __VERIFIER_assert(myglobal != 40) [L13] COND TRUE 0 !(cond) [L13] CALL 0 reach_error() [L12] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, j=20, myglobal=40] [L12] 0 __assert_fail ("0", "pthread-demo-datarace-2.c", 25, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, i=20, j=20, myglobal=40] - UnprovableResult [Line: 1338]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1342]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.9s, OverallIterations: 9, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 730 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 692 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1041 IncrementalHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 19 mSDtfsCounter, 1041 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1250 GetRequests, 1135 SyntacticMatches, 12 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1840occurred in iteration=8, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1404 NumberOfCodeBlocks, 1356 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 1754 ConstructedInterpolants, 0 QuantifiedInterpolants, 4010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1476 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 8044/10318 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 17:44:07,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX --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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:44:09,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:44:09,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-08 17:44:09,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:44:09,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:44:09,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:44:09,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:44:09,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:44:09,887 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:44:09,887 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:44:09,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:44:09,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:44:09,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:44:09,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:44:09,891 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:44:09,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:44:09,892 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:44:09,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:44:09,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:44:09,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:44:09,897 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 17:44:09,898 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 17:44:09,898 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 17:44:09,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:44:09,899 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:44:09,899 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:44:09,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:44:09,899 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:44:09,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:44:09,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:44:09,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:44:09,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:44:09,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:44:09,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:44:09,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:44:09,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:44:09,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:44:09,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:44:09,906 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:44:09,906 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:44:09,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:44:09,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:44:09,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:44:09,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:44:09,908 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_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-08 17:44:10,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:44:10,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:44:10,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:44:10,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:44:10,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:44:10,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i Unable to find full path for "g++" [2024-11-08 17:44:12,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:44:12,651 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:44:12,652 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-08 17:44:12,670 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/data/170728e5c/7801a1ecf7a74282a8a3b2d314e2f796/FLAG58a22f64a [2024-11-08 17:44:12,694 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/data/170728e5c/7801a1ecf7a74282a8a3b2d314e2f796 [2024-11-08 17:44:12,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:44:12,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:44:12,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:44:12,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:44:12,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:44:12,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:44:12" (1/1) ... [2024-11-08 17:44:12,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57393eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:12, skipping insertion in model container [2024-11-08 17:44:12,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:44:12" (1/1) ... [2024-11-08 17:44:12,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:44:13,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:44:13,763 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:44:13,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:44:14,010 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:44:14,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14 WrapperNode [2024-11-08 17:44:14,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:44:14,013 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:44:14,013 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:44:14,013 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:44:14,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,094 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2024-11-08 17:44:14,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:44:14,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:44:14,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:44:14,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:44:14,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,162 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]. [2024-11-08 17:44:14,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:44:14,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:44:14,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:44:14,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:44:14,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (1/1) ... [2024-11-08 17:44:14,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:44:14,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:14,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:44:14,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:44:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 17:44:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:44:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 17:44:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-08 17:44:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-08 17:44:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:44:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:44:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:44:14,274 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:44:14,452 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:44:14,454 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:44:14,778 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:44:14,778 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:44:15,484 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:44:15,485 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:44:15,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:44:15 BoogieIcfgContainer [2024-11-08 17:44:15,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:44:15,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:44:15,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:44:15,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:44:15,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:44:12" (1/3) ... [2024-11-08 17:44:15,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a660ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:44:15, skipping insertion in model container [2024-11-08 17:44:15,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:14" (2/3) ... [2024-11-08 17:44:15,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a660ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:44:15, skipping insertion in model container [2024-11-08 17:44:15,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:44:15" (3/3) ... [2024-11-08 17:44:15,499 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-08 17:44:15,518 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:44:15,518 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:44:15,519 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:44:15,567 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:44:15,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 32 transitions, 71 flow [2024-11-08 17:44:15,648 INFO L124 PetriNetUnfolderBase]: 6/31 cut-off events. [2024-11-08 17:44:15,650 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:44:15,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 31 events. 6/31 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2024-11-08 17:44:15,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 32 transitions, 71 flow [2024-11-08 17:44:15,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 30 transitions, 66 flow [2024-11-08 17:44:15,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:44:15,679 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;@56e8ca63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:44:15,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-08 17:44:15,697 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:44:15,697 INFO L124 PetriNetUnfolderBase]: 6/28 cut-off events. [2024-11-08 17:44:15,697 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:44:15,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:15,698 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:15,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:15,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2053827904, now seen corresponding path program 1 times [2024-11-08 17:44:15,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:15,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971067723] [2024-11-08 17:44:15,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:44:15,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:15,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:15,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:15,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:44:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:44:15,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 17:44:15,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:44:15,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:44:15,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:15,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971067723] [2024-11-08 17:44:15,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971067723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:44:15,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:44:15,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:44:15,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692982554] [2024-11-08 17:44:15,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:44:15,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:44:15,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:44:16,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:44:16,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 32 [2024-11-08 17:44:16,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 30 transitions, 66 flow. Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:16,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:16,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 32 [2024-11-08 17:44:16,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:16,085 INFO L124 PetriNetUnfolderBase]: 14/50 cut-off events. [2024-11-08 17:44:16,085 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 17:44:16,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 50 events. 14/50 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 122 event pairs, 3 based on Foata normal form. 3/40 useless extension candidates. Maximal degree in co-relation 58. Up to 22 conditions per place. [2024-11-08 17:44:16,089 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 11 selfloop transitions, 0 changer transitions 1/25 dead transitions. [2024-11-08 17:44:16,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 78 flow [2024-11-08 17:44:16,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:44:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-08 17:44:16,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2024-11-08 17:44:16,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.71875 [2024-11-08 17:44:16,108 INFO L175 Difference]: Start difference. First operand has 28 places, 30 transitions, 66 flow. Second operand 2 states and 46 transitions. [2024-11-08 17:44:16,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 78 flow [2024-11-08 17:44:16,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:44:16,116 INFO L231 Difference]: Finished difference. Result has 24 places, 24 transitions, 50 flow [2024-11-08 17:44:16,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=24, PETRI_TRANSITIONS=24} [2024-11-08 17:44:16,125 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -4 predicate places. [2024-11-08 17:44:16,125 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 24 transitions, 50 flow [2024-11-08 17:44:16,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:16,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:16,126 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:16,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:44:16,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:16,327 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:16,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash -193585612, now seen corresponding path program 1 times [2024-11-08 17:44:16,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:16,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1463153387] [2024-11-08 17:44:16,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:44:16,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:16,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:16,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:16,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:44:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:44:16,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:44:16,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:16,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:44:16,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:44:16,566 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:16,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463153387] [2024-11-08 17:44:16,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463153387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:44:16,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:44:16,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:44:16,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290732818] [2024-11-08 17:44:16,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:44:16,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:44:16,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:16,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:44:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:44:16,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-08 17:44:16,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 24 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:16,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:16,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-08 17:44:16,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:16,647 INFO L124 PetriNetUnfolderBase]: 20/64 cut-off events. [2024-11-08 17:44:16,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:44:16,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 64 events. 20/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 event pairs, 4 based on Foata normal form. 4/57 useless extension candidates. Maximal degree in co-relation 100. Up to 28 conditions per place. [2024-11-08 17:44:16,649 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 15 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2024-11-08 17:44:16,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 28 transitions, 92 flow [2024-11-08 17:44:16,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:44:16,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:44:16,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2024-11-08 17:44:16,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6354166666666666 [2024-11-08 17:44:16,651 INFO L175 Difference]: Start difference. First operand has 24 places, 24 transitions, 50 flow. Second operand 3 states and 61 transitions. [2024-11-08 17:44:16,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 28 transitions, 92 flow [2024-11-08 17:44:16,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 92 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:44:16,654 INFO L231 Difference]: Finished difference. Result has 26 places, 25 transitions, 64 flow [2024-11-08 17:44:16,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=25} [2024-11-08 17:44:16,655 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-11-08 17:44:16,655 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 25 transitions, 64 flow [2024-11-08 17:44:16,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:16,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:16,657 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:16,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:44:16,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:16,858 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:16,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:16,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1312986707, now seen corresponding path program 1 times [2024-11-08 17:44:16,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:16,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347857884] [2024-11-08 17:44:16,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:44:16,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:16,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:16,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:16,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:44:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:44:17,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:44:17,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:44:17,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:44:17,110 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:17,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347857884] [2024-11-08 17:44:17,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347857884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:44:17,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:44:17,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:44:17,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853466609] [2024-11-08 17:44:17,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:44:17,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:44:17,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:17,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:44:17,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:44:17,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-08 17:44:17,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 25 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:17,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:17,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-08 17:44:17,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:17,228 INFO L124 PetriNetUnfolderBase]: 35/106 cut-off events. [2024-11-08 17:44:17,228 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-08 17:44:17,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 106 events. 35/106 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 275 event pairs, 4 based on Foata normal form. 12/114 useless extension candidates. Maximal degree in co-relation 190. Up to 48 conditions per place. [2024-11-08 17:44:17,230 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 18 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2024-11-08 17:44:17,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 31 transitions, 124 flow [2024-11-08 17:44:17,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:44:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:44:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-08 17:44:17,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-11-08 17:44:17,233 INFO L175 Difference]: Start difference. First operand has 26 places, 25 transitions, 64 flow. Second operand 3 states and 62 transitions. [2024-11-08 17:44:17,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 31 transitions, 124 flow [2024-11-08 17:44:17,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:44:17,235 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 76 flow [2024-11-08 17:44:17,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2024-11-08 17:44:17,236 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 0 predicate places. [2024-11-08 17:44:17,236 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 76 flow [2024-11-08 17:44:17,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:17,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:17,237 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] [2024-11-08 17:44:17,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:44:17,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:17,438 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:17,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1030162621, now seen corresponding path program 1 times [2024-11-08 17:44:17,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:17,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947628197] [2024-11-08 17:44:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:44:17,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:17,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:17,441 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:17,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:44:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:44:17,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:44:17,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:44:17,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:44:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:44:17,798 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:17,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947628197] [2024-11-08 17:44:17,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947628197] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:44:17,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:44:17,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-08 17:44:17,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529077757] [2024-11-08 17:44:17,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:44:17,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:44:17,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:17,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:44:17,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:44:17,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:44:17,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:17,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:17,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:44:17,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:18,014 INFO L124 PetriNetUnfolderBase]: 63/164 cut-off events. [2024-11-08 17:44:18,015 INFO L125 PetriNetUnfolderBase]: For 112/128 co-relation queries the response was YES. [2024-11-08 17:44:18,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 164 events. 63/164 cut-off events. For 112/128 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 441 event pairs, 6 based on Foata normal form. 18/178 useless extension candidates. Maximal degree in co-relation 392. Up to 60 conditions per place. [2024-11-08 17:44:18,020 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 34 selfloop transitions, 6 changer transitions 0/49 dead transitions. [2024-11-08 17:44:18,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 49 transitions, 236 flow [2024-11-08 17:44:18,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:44:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:44:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2024-11-08 17:44:18,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5885416666666666 [2024-11-08 17:44:18,025 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 76 flow. Second operand 6 states and 113 transitions. [2024-11-08 17:44:18,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 49 transitions, 236 flow [2024-11-08 17:44:18,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 49 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:44:18,028 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 110 flow [2024-11-08 17:44:18,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=110, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-08 17:44:18,029 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 8 predicate places. [2024-11-08 17:44:18,029 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 110 flow [2024-11-08 17:44:18,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:18,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:18,030 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:18,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:44:18,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:18,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:18,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:18,234 INFO L85 PathProgramCache]: Analyzing trace with hash 524491448, now seen corresponding path program 2 times [2024-11-08 17:44:18,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:18,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008571919] [2024-11-08 17:44:18,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:44:18,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:18,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:18,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:18,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:44:18,406 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:44:18,407 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:44:18,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:44:18,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 17:44:18,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:44:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 17:44:18,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:18,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008571919] [2024-11-08 17:44:18,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008571919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:44:18,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:44:18,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-08 17:44:18,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024762240] [2024-11-08 17:44:18,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:44:18,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:44:18,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:18,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:44:18,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:44:18,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:44:18,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 110 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) [2024-11-08 17:44:18,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:18,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:44:18,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:18,781 INFO L124 PetriNetUnfolderBase]: 153/402 cut-off events. [2024-11-08 17:44:18,781 INFO L125 PetriNetUnfolderBase]: For 469/469 co-relation queries the response was YES. [2024-11-08 17:44:18,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 402 events. 153/402 cut-off events. For 469/469 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1951 event pairs, 20 based on Foata normal form. 66/455 useless extension candidates. Maximal degree in co-relation 1019. Up to 75 conditions per place. [2024-11-08 17:44:18,787 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 49 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2024-11-08 17:44:18,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 64 transitions, 406 flow [2024-11-08 17:44:18,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:44:18,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:44:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2024-11-08 17:44:18,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145833333333334 [2024-11-08 17:44:18,791 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 110 flow. Second operand 6 states and 118 transitions. [2024-11-08 17:44:18,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 64 transitions, 406 flow [2024-11-08 17:44:18,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 64 transitions, 366 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-08 17:44:18,795 INFO L231 Difference]: Finished difference. Result has 44 places, 30 transitions, 138 flow [2024-11-08 17:44:18,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=44, PETRI_TRANSITIONS=30} [2024-11-08 17:44:18,796 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 16 predicate places. [2024-11-08 17:44:18,796 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 30 transitions, 138 flow [2024-11-08 17:44:18,796 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) [2024-11-08 17:44:18,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:18,797 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:18,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:44:18,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:18,998 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:18,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1825360592, now seen corresponding path program 3 times [2024-11-08 17:44:18,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:18,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218390178] [2024-11-08 17:44:19,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 17:44:19,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:19,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:19,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:19,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:44:19,214 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-08 17:44:19,214 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:44:19,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:44:19,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 17:44:19,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:44:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 17:44:19,559 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:19,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218390178] [2024-11-08 17:44:19,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218390178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:44:19,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:44:19,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-08 17:44:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966648284] [2024-11-08 17:44:19,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:44:19,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:44:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:19,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:44:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:44:19,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:44:19,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 30 transitions, 138 flow. Second operand has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:19,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:19,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:44:19,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:20,167 INFO L124 PetriNetUnfolderBase]: 333/846 cut-off events. [2024-11-08 17:44:20,167 INFO L125 PetriNetUnfolderBase]: For 1387/1387 co-relation queries the response was YES. [2024-11-08 17:44:20,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 846 events. 333/846 cut-off events. For 1387/1387 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4833 event pairs, 20 based on Foata normal form. 66/900 useless extension candidates. Maximal degree in co-relation 2489. Up to 165 conditions per place. [2024-11-08 17:44:20,175 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 103 selfloop transitions, 12 changer transitions 0/124 dead transitions. [2024-11-08 17:44:20,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 124 transitions, 822 flow [2024-11-08 17:44:20,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:44:20,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-08 17:44:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 232 transitions. [2024-11-08 17:44:20,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-11-08 17:44:20,178 INFO L175 Difference]: Start difference. First operand has 44 places, 30 transitions, 138 flow. Second operand 12 states and 232 transitions. [2024-11-08 17:44:20,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 124 transitions, 822 flow [2024-11-08 17:44:20,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 124 transitions, 802 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-08 17:44:20,186 INFO L231 Difference]: Finished difference. Result has 61 places, 37 transitions, 226 flow [2024-11-08 17:44:20,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=226, PETRI_PLACES=61, PETRI_TRANSITIONS=37} [2024-11-08 17:44:20,187 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 33 predicate places. [2024-11-08 17:44:20,188 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 37 transitions, 226 flow [2024-11-08 17:44:20,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:20,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:20,188 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:20,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 17:44:20,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:20,389 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:20,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:20,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1547974108, now seen corresponding path program 4 times [2024-11-08 17:44:20,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:20,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375640375] [2024-11-08 17:44:20,391 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 17:44:20,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:20,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:20,392 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:20,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 17:44:20,566 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 17:44:20,567 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:44:20,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:44:20,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 17:44:20,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:44:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 17:44:20,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:20,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375640375] [2024-11-08 17:44:20,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375640375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:44:20,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:44:20,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-08 17:44:20,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452493215] [2024-11-08 17:44:20,826 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:44:20,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:44:20,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:20,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:44:20,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:44:20,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:44:20,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 37 transitions, 226 flow. Second operand has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:20,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:20,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:44:20,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:21,475 INFO L124 PetriNetUnfolderBase]: 488/1346 cut-off events. [2024-11-08 17:44:21,476 INFO L125 PetriNetUnfolderBase]: For 5111/5185 co-relation queries the response was YES. [2024-11-08 17:44:21,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4777 conditions, 1346 events. 488/1346 cut-off events. For 5111/5185 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8728 event pairs, 51 based on Foata normal form. 72/1382 useless extension candidates. Maximal degree in co-relation 4757. Up to 484 conditions per place. [2024-11-08 17:44:21,531 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 158 selfloop transitions, 12 changer transitions 0/180 dead transitions. [2024-11-08 17:44:21,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 180 transitions, 1706 flow [2024-11-08 17:44:21,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:44:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-08 17:44:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 221 transitions. [2024-11-08 17:44:21,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5755208333333334 [2024-11-08 17:44:21,534 INFO L175 Difference]: Start difference. First operand has 61 places, 37 transitions, 226 flow. Second operand 12 states and 221 transitions. [2024-11-08 17:44:21,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 180 transitions, 1706 flow [2024-11-08 17:44:21,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 180 transitions, 1640 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:44:21,551 INFO L231 Difference]: Finished difference. Result has 76 places, 44 transitions, 316 flow [2024-11-08 17:44:21,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=316, PETRI_PLACES=76, PETRI_TRANSITIONS=44} [2024-11-08 17:44:21,554 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 48 predicate places. [2024-11-08 17:44:21,555 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 44 transitions, 316 flow [2024-11-08 17:44:21,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:21,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:21,556 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:21,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 17:44:21,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:21,757 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:21,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:21,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2021937988, now seen corresponding path program 5 times [2024-11-08 17:44:21,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:21,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850533907] [2024-11-08 17:44:21,758 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 17:44:21,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:21,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:21,760 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:21,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 17:44:21,969 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-11-08 17:44:21,970 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:44:21,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 17:44:21,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 37 proven. 289 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 17:44:22,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:44:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 37 proven. 289 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-08 17:44:22,957 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:22,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850533907] [2024-11-08 17:44:22,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850533907] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:44:22,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:44:22,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-08 17:44:22,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484036492] [2024-11-08 17:44:22,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:44:22,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 17:44:22,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:22,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 17:44:22,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2024-11-08 17:44:22,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:44:22,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 44 transitions, 316 flow. Second operand has 24 states, 24 states have (on average 15.958333333333334) internal successors, (383), 24 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:22,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:22,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:44:22,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:24,849 INFO L124 PetriNetUnfolderBase]: 926/2451 cut-off events. [2024-11-08 17:44:24,849 INFO L125 PetriNetUnfolderBase]: For 13506/13666 co-relation queries the response was YES. [2024-11-08 17:44:24,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9432 conditions, 2451 events. 926/2451 cut-off events. For 13506/13666 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 17094 event pairs, 33 based on Foata normal form. 120/2551 useless extension candidates. Maximal degree in co-relation 9405. Up to 924 conditions per place. [2024-11-08 17:44:24,874 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 298 selfloop transitions, 22 changer transitions 0/330 dead transitions. [2024-11-08 17:44:24,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 330 transitions, 3204 flow [2024-11-08 17:44:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:44:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-08 17:44:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 405 transitions. [2024-11-08 17:44:24,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5752840909090909 [2024-11-08 17:44:24,877 INFO L175 Difference]: Start difference. First operand has 76 places, 44 transitions, 316 flow. Second operand 22 states and 405 transitions. [2024-11-08 17:44:24,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 330 transitions, 3204 flow [2024-11-08 17:44:24,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 330 transitions, 3198 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:44:24,899 INFO L231 Difference]: Finished difference. Result has 105 places, 55 transitions, 510 flow [2024-11-08 17:44:24,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=510, PETRI_PLACES=105, PETRI_TRANSITIONS=55} [2024-11-08 17:44:24,900 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 77 predicate places. [2024-11-08 17:44:24,901 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 55 transitions, 510 flow [2024-11-08 17:44:24,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.958333333333334) internal successors, (383), 24 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:24,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:24,903 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:24,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 17:44:25,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:25,104 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:25,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:25,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1104072684, now seen corresponding path program 6 times [2024-11-08 17:44:25,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:25,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578963587] [2024-11-08 17:44:25,106 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 17:44:25,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:25,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:25,108 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:25,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 17:44:25,521 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-11-08 17:44:25,521 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:44:25,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 17:44:25,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 17:44:25,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:44:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 17:44:26,225 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:26,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578963587] [2024-11-08 17:44:26,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578963587] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:44:26,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:44:26,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-08 17:44:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884117358] [2024-11-08 17:44:26,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:44:26,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 17:44:26,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:26,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 17:44:26,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2024-11-08 17:44:26,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:44:26,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 55 transitions, 510 flow. Second operand has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:26,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:26,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:44:26,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:44:29,407 INFO L124 PetriNetUnfolderBase]: 2651/6462 cut-off events. [2024-11-08 17:44:29,408 INFO L125 PetriNetUnfolderBase]: For 44541/44541 co-relation queries the response was YES. [2024-11-08 17:44:29,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25655 conditions, 6462 events. 2651/6462 cut-off events. For 44541/44541 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 50536 event pairs, 105 based on Foata normal form. 430/6818 useless extension candidates. Maximal degree in co-relation 25617. Up to 1323 conditions per place. [2024-11-08 17:44:29,559 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 529 selfloop transitions, 22 changer transitions 0/562 dead transitions. [2024-11-08 17:44:29,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 562 transitions, 7182 flow [2024-11-08 17:44:29,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:44:29,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-08 17:44:29,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 426 transitions. [2024-11-08 17:44:29,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6051136363636364 [2024-11-08 17:44:29,569 INFO L175 Difference]: Start difference. First operand has 105 places, 55 transitions, 510 flow. Second operand 22 states and 426 transitions. [2024-11-08 17:44:29,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 562 transitions, 7182 flow [2024-11-08 17:44:29,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 562 transitions, 6804 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-11-08 17:44:29,672 INFO L231 Difference]: Finished difference. Result has 128 places, 66 transitions, 692 flow [2024-11-08 17:44:29,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=692, PETRI_PLACES=128, PETRI_TRANSITIONS=66} [2024-11-08 17:44:29,674 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 100 predicate places. [2024-11-08 17:44:29,675 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 66 transitions, 692 flow [2024-11-08 17:44:29,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:29,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:44:29,677 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:29,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 17:44:29,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:29,878 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-08 17:44:29,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:29,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2002640178, now seen corresponding path program 7 times [2024-11-08 17:44:29,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:29,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171101282] [2024-11-08 17:44:29,879 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-08 17:44:29,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:29,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:29,885 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:29,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0263af33-e89a-455b-88c2-c3dc87e04941/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 17:44:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:44:30,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-08 17:44:30,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:44:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 1160 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-08 17:44:31,889 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:44:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 1160 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-08 17:44:35,137 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:44:35,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171101282] [2024-11-08 17:44:35,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171101282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:44:35,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:44:35,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 87 [2024-11-08 17:44:35,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883404316] [2024-11-08 17:44:35,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:44:35,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-11-08 17:44:35,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:44:35,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-11-08 17:44:35,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1054, Invalid=6602, Unknown=0, NotChecked=0, Total=7656 [2024-11-08 17:44:35,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2024-11-08 17:44:35,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 66 transitions, 692 flow. Second operand has 88 states, 88 states have (on average 14.045454545454545) internal successors, (1236), 88 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:44:35,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:44:35,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2024-11-08 17:44:35,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand