./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/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_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/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_6950e212-62eb-472b-ac69-60f3f46881c8/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 c0fbd235801aa6198331442d567d46062ed57d086b0069ca7d1e131a6b5917b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:18:17,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:18:17,715 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 16:18:17,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:18:17,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:18:17,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:18:17,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:18:17,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:18:17,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:18:17,771 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:18:17,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:18:17,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:18:17,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:18:17,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:18:17,778 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:18:17,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:18:17,779 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:18:17,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:18:17,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:18:17,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:18:17,781 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 16:18:17,782 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 16:18:17,782 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 16:18:17,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:18:17,787 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:18:17,788 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:18:17,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:18:17,788 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:18:17,789 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:18:17,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:18:17,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:18:17,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:18:17,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:18:17,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:18:17,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:18:17,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:18:17,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:18:17,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:18:17,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:18:17,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:18:17,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:18:17,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:18:17,796 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_6950e212-62eb-472b-ac69-60f3f46881c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0fbd235801aa6198331442d567d46062ed57d086b0069ca7d1e131a6b5917b8 [2024-11-08 16:18:18,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:18:18,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:18:18,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:18:18,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:18:18,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:18:18,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-11-08 16:18:20,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:18:20,736 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:18:20,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/sv-benchmarks/c/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-08 16:18:20,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/data/e100dba63/5ada03216f31481d9ebeaaf362e59f71/FLAG068f013f7 [2024-11-08 16:18:20,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/data/e100dba63/5ada03216f31481d9ebeaaf362e59f71 [2024-11-08 16:18:20,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:18:20,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:18:20,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:18:20,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:18:20,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:18:20,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:18:20" (1/1) ... [2024-11-08 16:18:20,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4d83ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:20, skipping insertion in model container [2024-11-08 16:18:20,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:18:20" (1/1) ... [2024-11-08 16:18:20,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:18:21,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:18:21,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:18:21,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:18:21,637 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:18:21,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21 WrapperNode [2024-11-08 16:18:21,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:18:21,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:18:21,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:18:21,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:18:21,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,754 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 142 [2024-11-08 16:18:21,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:18:21,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:18:21,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:18:21,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:18:21,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,785 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,825 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 16:18:21,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:18:21,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:18:21,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:18:21,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:18:21,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (1/1) ... [2024-11-08 16:18:21,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:18:21,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:21,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:18:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:18:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 16:18:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:18:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-08 16:18:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-08 16:18:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-08 16:18:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-08 16:18:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-08 16:18:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-08 16:18:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:18:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 16:18:21,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:18:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:18:21,974 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 16:18:22,181 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:18:22,184 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:18:22,650 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:18:22,654 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:18:23,080 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:18:23,081 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:18:23,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:18:23 BoogieIcfgContainer [2024-11-08 16:18:23,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:18:23,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:18:23,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:18:23,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:18:23,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:18:20" (1/3) ... [2024-11-08 16:18:23,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190f7a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:18:23, skipping insertion in model container [2024-11-08 16:18:23,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:21" (2/3) ... [2024-11-08 16:18:23,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190f7a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:18:23, skipping insertion in model container [2024-11-08 16:18:23,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:18:23" (3/3) ... [2024-11-08 16:18:23,112 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-08 16:18:23,156 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:18:23,157 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-08 16:18:23,157 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:18:23,250 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 16:18:23,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-08 16:18:23,348 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-08 16:18:23,348 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:18:23,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-08 16:18:23,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-08 16:18:23,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-11-08 16:18:23,366 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:18:23,375 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;@7a667947, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:18:23,375 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 16:18:23,382 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:18:23,383 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-08 16:18:23,383 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:18:23,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:23,384 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:18:23,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:23,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:23,392 INFO L85 PathProgramCache]: Analyzing trace with hash -492300165, now seen corresponding path program 1 times [2024-11-08 16:18:23,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:23,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500876390] [2024-11-08 16:18:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:23,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:24,033 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 16:18:24,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:24,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500876390] [2024-11-08 16:18:24,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500876390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:24,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:24,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:18:24,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932495933] [2024-11-08 16:18:24,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:24,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:18:24,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:18:24,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:18:24,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-08 16:18:24,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:18:24,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:24,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-08 16:18:24,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:24,893 INFO L124 PetriNetUnfolderBase]: 772/1395 cut-off events. [2024-11-08 16:18:24,893 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 16:18:24,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 1395 events. 772/1395 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8863 event pairs, 96 based on Foata normal form. 90/1475 useless extension candidates. Maximal degree in co-relation 2596. Up to 989 conditions per place. [2024-11-08 16:18:24,915 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 30 selfloop transitions, 2 changer transitions 2/50 dead transitions. [2024-11-08 16:18:24,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 180 flow [2024-11-08 16:18:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:18:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:18:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-08 16:18:24,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-11-08 16:18:24,936 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 96 transitions. [2024-11-08 16:18:24,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 180 flow [2024-11-08 16:18:24,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 16:18:24,946 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-11-08 16:18:24,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-08 16:18:24,956 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-11-08 16:18:24,956 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-11-08 16:18:24,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:18:24,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:24,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:24,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:18:24,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:24,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:24,958 INFO L85 PathProgramCache]: Analyzing trace with hash -705126666, now seen corresponding path program 1 times [2024-11-08 16:18:24,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:24,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107212761] [2024-11-08 16:18:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:24,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:25,064 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 16:18:25,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:25,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107212761] [2024-11-08 16:18:25,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107212761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:25,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:25,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:18:25,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299261169] [2024-11-08 16:18:25,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:25,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:18:25,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:25,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:18:25,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:18:25,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-08 16:18:25,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 16:18:25,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:25,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-08 16:18:25,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:25,486 INFO L124 PetriNetUnfolderBase]: 676/1308 cut-off events. [2024-11-08 16:18:25,487 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-08 16:18:25,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2447 conditions, 1308 events. 676/1308 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8630 event pairs, 676 based on Foata normal form. 45/1310 useless extension candidates. Maximal degree in co-relation 2437. Up to 1028 conditions per place. [2024-11-08 16:18:25,499 INFO L140 encePairwiseOnDemand]: 42/44 looper letters, 18 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-08 16:18:25,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 120 flow [2024-11-08 16:18:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:18:25,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:18:25,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-08 16:18:25,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-11-08 16:18:25,501 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 3 states and 75 transitions. [2024-11-08 16:18:25,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 120 flow [2024-11-08 16:18:25,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:18:25,504 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-08 16:18:25,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-08 16:18:25,507 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -5 predicate places. [2024-11-08 16:18:25,508 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-08 16:18:25,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 16:18:25,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:25,509 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:25,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:18:25,509 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:25,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:25,510 INFO L85 PathProgramCache]: Analyzing trace with hash -705126651, now seen corresponding path program 1 times [2024-11-08 16:18:25,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:25,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160000128] [2024-11-08 16:18:25,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:25,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:25,904 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 16:18:25,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:25,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160000128] [2024-11-08 16:18:25,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160000128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:25,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:25,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:18:25,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469014777] [2024-11-08 16:18:25,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:25,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:18:25,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:25,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:18:25,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:18:25,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:25,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 16:18:25,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:25,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:25,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:27,072 INFO L124 PetriNetUnfolderBase]: 1663/2843 cut-off events. [2024-11-08 16:18:27,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:18:27,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5393 conditions, 2843 events. 1663/2843 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 18382 event pairs, 736 based on Foata normal form. 0/2746 useless extension candidates. Maximal degree in co-relation 5387. Up to 1585 conditions per place. [2024-11-08 16:18:27,090 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 31 selfloop transitions, 3 changer transitions 46/91 dead transitions. [2024-11-08 16:18:27,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 91 transitions, 354 flow [2024-11-08 16:18:27,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:18:27,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 16:18:27,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 202 transitions. [2024-11-08 16:18:27,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5738636363636364 [2024-11-08 16:18:27,097 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 8 states and 202 transitions. [2024-11-08 16:18:27,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 91 transitions, 354 flow [2024-11-08 16:18:27,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 91 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:18:27,100 INFO L231 Difference]: Finished difference. Result has 54 places, 35 transitions, 108 flow [2024-11-08 16:18:27,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=108, PETRI_PLACES=54, PETRI_TRANSITIONS=35} [2024-11-08 16:18:27,101 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2024-11-08 16:18:27,102 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 35 transitions, 108 flow [2024-11-08 16:18:27,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 16:18:27,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:27,104 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:27,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:18:27,104 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:27,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:27,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1586870852, now seen corresponding path program 1 times [2024-11-08 16:18:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:27,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214953627] [2024-11-08 16:18:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:27,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:27,422 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 16:18:27,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:27,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214953627] [2024-11-08 16:18:27,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214953627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:27,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:27,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:18:27,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483885999] [2024-11-08 16:18:27,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:27,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:18:27,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:27,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:18:27,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:18:27,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:27,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 35 transitions, 108 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 16:18:27,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:27,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:27,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:28,270 INFO L124 PetriNetUnfolderBase]: 1169/1999 cut-off events. [2024-11-08 16:18:28,270 INFO L125 PetriNetUnfolderBase]: For 1096/1096 co-relation queries the response was YES. [2024-11-08 16:18:28,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4743 conditions, 1999 events. 1169/1999 cut-off events. For 1096/1096 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 12189 event pairs, 295 based on Foata normal form. 54/2029 useless extension candidates. Maximal degree in co-relation 4731. Up to 1153 conditions per place. [2024-11-08 16:18:28,285 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 30 selfloop transitions, 3 changer transitions 29/73 dead transitions. [2024-11-08 16:18:28,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 73 transitions, 332 flow [2024-11-08 16:18:28,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:18:28,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:18:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 168 transitions. [2024-11-08 16:18:28,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-11-08 16:18:28,289 INFO L175 Difference]: Start difference. First operand has 54 places, 35 transitions, 108 flow. Second operand 7 states and 168 transitions. [2024-11-08 16:18:28,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 73 transitions, 332 flow [2024-11-08 16:18:28,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 73 transitions, 315 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-08 16:18:28,314 INFO L231 Difference]: Finished difference. Result has 56 places, 35 transitions, 118 flow [2024-11-08 16:18:28,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=118, PETRI_PLACES=56, PETRI_TRANSITIONS=35} [2024-11-08 16:18:28,316 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2024-11-08 16:18:28,317 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 35 transitions, 118 flow [2024-11-08 16:18:28,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 16:18:28,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:28,318 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 16:18:28,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:18:28,318 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:28,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:28,319 INFO L85 PathProgramCache]: Analyzing trace with hash 540200723, now seen corresponding path program 1 times [2024-11-08 16:18:28,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:28,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211712163] [2024-11-08 16:18:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:28,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:28,746 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 16:18:28,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:28,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211712163] [2024-11-08 16:18:28,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211712163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:28,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:28,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:18:28,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118928512] [2024-11-08 16:18:28,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:28,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:18:28,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:28,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:18:28,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:18:28,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:28,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 35 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 16:18:28,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:28,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:28,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:29,532 INFO L124 PetriNetUnfolderBase]: 1056/1855 cut-off events. [2024-11-08 16:18:29,533 INFO L125 PetriNetUnfolderBase]: For 1414/1414 co-relation queries the response was YES. [2024-11-08 16:18:29,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4468 conditions, 1855 events. 1056/1855 cut-off events. For 1414/1414 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 11380 event pairs, 366 based on Foata normal form. 48/1877 useless extension candidates. Maximal degree in co-relation 4452. Up to 1150 conditions per place. [2024-11-08 16:18:29,548 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 34 selfloop transitions, 3 changer transitions 29/77 dead transitions. [2024-11-08 16:18:29,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 77 transitions, 366 flow [2024-11-08 16:18:29,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:18:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:18:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 172 transitions. [2024-11-08 16:18:29,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5584415584415584 [2024-11-08 16:18:29,550 INFO L175 Difference]: Start difference. First operand has 56 places, 35 transitions, 118 flow. Second operand 7 states and 172 transitions. [2024-11-08 16:18:29,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 77 transitions, 366 flow [2024-11-08 16:18:29,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 77 transitions, 336 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-08 16:18:29,560 INFO L231 Difference]: Finished difference. Result has 57 places, 35 transitions, 119 flow [2024-11-08 16:18:29,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=57, PETRI_TRANSITIONS=35} [2024-11-08 16:18:29,561 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2024-11-08 16:18:29,561 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 35 transitions, 119 flow [2024-11-08 16:18:29,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 16:18:29,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:29,562 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] [2024-11-08 16:18:29,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:18:29,563 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:29,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:29,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1726416406, now seen corresponding path program 1 times [2024-11-08 16:18:29,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:29,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149325855] [2024-11-08 16:18:29,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:29,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:30,023 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 16:18:30,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:30,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149325855] [2024-11-08 16:18:30,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149325855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:30,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:30,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:18:30,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339487223] [2024-11-08 16:18:30,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:30,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:18:30,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:30,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:18:30,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:18:30,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 44 [2024-11-08 16:18:30,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 35 transitions, 119 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 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 16:18:30,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:30,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 44 [2024-11-08 16:18:30,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:31,061 INFO L124 PetriNetUnfolderBase]: 1730/2955 cut-off events. [2024-11-08 16:18:31,062 INFO L125 PetriNetUnfolderBase]: For 1543/1543 co-relation queries the response was YES. [2024-11-08 16:18:31,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6849 conditions, 2955 events. 1730/2955 cut-off events. For 1543/1543 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 18178 event pairs, 259 based on Foata normal form. 48/2981 useless extension candidates. Maximal degree in co-relation 6832. Up to 1036 conditions per place. [2024-11-08 16:18:31,080 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 38 selfloop transitions, 4 changer transitions 38/90 dead transitions. [2024-11-08 16:18:31,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 90 transitions, 434 flow [2024-11-08 16:18:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:18:31,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 16:18:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 190 transitions. [2024-11-08 16:18:31,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5397727272727273 [2024-11-08 16:18:31,082 INFO L175 Difference]: Start difference. First operand has 57 places, 35 transitions, 119 flow. Second operand 8 states and 190 transitions. [2024-11-08 16:18:31,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 90 transitions, 434 flow [2024-11-08 16:18:31,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 90 transitions, 396 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-11-08 16:18:31,104 INFO L231 Difference]: Finished difference. Result has 58 places, 35 transitions, 124 flow [2024-11-08 16:18:31,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=124, PETRI_PLACES=58, PETRI_TRANSITIONS=35} [2024-11-08 16:18:31,107 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 9 predicate places. [2024-11-08 16:18:31,107 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 35 transitions, 124 flow [2024-11-08 16:18:31,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 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 16:18:31,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:31,108 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 16:18:31,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:18:31,109 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:31,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:31,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1217832367, now seen corresponding path program 1 times [2024-11-08 16:18:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:31,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119319424] [2024-11-08 16:18:31,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:31,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:31,444 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 16:18:31,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:31,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119319424] [2024-11-08 16:18:31,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119319424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:31,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:31,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:18:31,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589745747] [2024-11-08 16:18:31,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:31,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:18:31,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:31,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:18:31,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:18:31,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:31,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 35 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:18:31,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:31,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:31,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:32,097 INFO L124 PetriNetUnfolderBase]: 1459/2384 cut-off events. [2024-11-08 16:18:32,097 INFO L125 PetriNetUnfolderBase]: For 1013/1027 co-relation queries the response was YES. [2024-11-08 16:18:32,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5385 conditions, 2384 events. 1459/2384 cut-off events. For 1013/1027 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 13037 event pairs, 169 based on Foata normal form. 112/2467 useless extension candidates. Maximal degree in co-relation 5368. Up to 1247 conditions per place. [2024-11-08 16:18:32,115 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 43 selfloop transitions, 5 changer transitions 1/60 dead transitions. [2024-11-08 16:18:32,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 286 flow [2024-11-08 16:18:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:18:32,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:18:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2024-11-08 16:18:32,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-08 16:18:32,117 INFO L175 Difference]: Start difference. First operand has 58 places, 35 transitions, 124 flow. Second operand 4 states and 108 transitions. [2024-11-08 16:18:32,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 286 flow [2024-11-08 16:18:32,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 264 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-11-08 16:18:32,128 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 136 flow [2024-11-08 16:18:32,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2024-11-08 16:18:32,130 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-11-08 16:18:32,130 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 136 flow [2024-11-08 16:18:32,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:18:32,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:32,131 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:32,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:18:32,131 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:32,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1687708624, now seen corresponding path program 1 times [2024-11-08 16:18:32,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:32,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185827808] [2024-11-08 16:18:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:32,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:32,542 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 16:18:32,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:32,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185827808] [2024-11-08 16:18:32,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185827808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:32,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:32,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:18:32,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952555663] [2024-11-08 16:18:32,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:32,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:18:32,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:32,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:18:32,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:18:32,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:32,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 16:18:32,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:32,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:32,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:33,132 INFO L124 PetriNetUnfolderBase]: 951/1590 cut-off events. [2024-11-08 16:18:33,132 INFO L125 PetriNetUnfolderBase]: For 610/629 co-relation queries the response was YES. [2024-11-08 16:18:33,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3903 conditions, 1590 events. 951/1590 cut-off events. For 610/629 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7824 event pairs, 83 based on Foata normal form. 98/1664 useless extension candidates. Maximal degree in co-relation 3890. Up to 569 conditions per place. [2024-11-08 16:18:33,143 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 51 selfloop transitions, 8 changer transitions 1/71 dead transitions. [2024-11-08 16:18:33,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 71 transitions, 351 flow [2024-11-08 16:18:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:18:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:18:33,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-11-08 16:18:33,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-08 16:18:33,146 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 136 flow. Second operand 5 states and 135 transitions. [2024-11-08 16:18:33,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 71 transitions, 351 flow [2024-11-08 16:18:33,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 71 transitions, 341 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 16:18:33,151 INFO L231 Difference]: Finished difference. Result has 55 places, 41 transitions, 176 flow [2024-11-08 16:18:33,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2024-11-08 16:18:33,152 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 6 predicate places. [2024-11-08 16:18:33,152 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 176 flow [2024-11-08 16:18:33,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 16:18:33,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:33,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:33,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:18:33,153 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:33,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:33,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1999142068, now seen corresponding path program 1 times [2024-11-08 16:18:33,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:33,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649723092] [2024-11-08 16:18:33,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:33,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:33,573 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 16:18:33,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:33,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649723092] [2024-11-08 16:18:33,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649723092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:33,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:33,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:18:33,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536434137] [2024-11-08 16:18:33,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:33,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:18:33,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:33,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:18:33,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:18:33,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:33,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 16:18:33,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:33,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:33,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:34,305 INFO L124 PetriNetUnfolderBase]: 1025/1846 cut-off events. [2024-11-08 16:18:34,305 INFO L125 PetriNetUnfolderBase]: For 948/982 co-relation queries the response was YES. [2024-11-08 16:18:34,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4503 conditions, 1846 events. 1025/1846 cut-off events. For 948/982 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 10525 event pairs, 354 based on Foata normal form. 45/1796 useless extension candidates. Maximal degree in co-relation 4488. Up to 821 conditions per place. [2024-11-08 16:18:34,320 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 36 selfloop transitions, 2 changer transitions 16/72 dead transitions. [2024-11-08 16:18:34,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 72 transitions, 361 flow [2024-11-08 16:18:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:18:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:18:34,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2024-11-08 16:18:34,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-11-08 16:18:34,322 INFO L175 Difference]: Start difference. First operand has 55 places, 41 transitions, 176 flow. Second operand 6 states and 144 transitions. [2024-11-08 16:18:34,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 72 transitions, 361 flow [2024-11-08 16:18:34,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 72 transitions, 337 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 16:18:34,329 INFO L231 Difference]: Finished difference. Result has 60 places, 42 transitions, 171 flow [2024-11-08 16:18:34,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=171, PETRI_PLACES=60, PETRI_TRANSITIONS=42} [2024-11-08 16:18:34,330 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2024-11-08 16:18:34,330 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 42 transitions, 171 flow [2024-11-08 16:18:34,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 16:18:34,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:34,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:34,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:18:34,331 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:34,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:34,332 INFO L85 PathProgramCache]: Analyzing trace with hash -814208018, now seen corresponding path program 2 times [2024-11-08 16:18:34,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:34,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049956144] [2024-11-08 16:18:34,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:34,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:34,789 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 16:18:34,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:34,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049956144] [2024-11-08 16:18:34,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049956144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:34,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:34,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:18:34,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966279647] [2024-11-08 16:18:34,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:34,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:18:34,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:18:34,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:18:34,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:34,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 42 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 16:18:34,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:34,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:34,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:35,334 INFO L124 PetriNetUnfolderBase]: 862/1413 cut-off events. [2024-11-08 16:18:35,334 INFO L125 PetriNetUnfolderBase]: For 667/705 co-relation queries the response was YES. [2024-11-08 16:18:35,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3526 conditions, 1413 events. 862/1413 cut-off events. For 667/705 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6617 event pairs, 94 based on Foata normal form. 96/1475 useless extension candidates. Maximal degree in co-relation 3509. Up to 526 conditions per place. [2024-11-08 16:18:35,342 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 38 selfloop transitions, 11 changer transitions 8/68 dead transitions. [2024-11-08 16:18:35,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 347 flow [2024-11-08 16:18:35,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:18:35,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:18:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2024-11-08 16:18:35,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2024-11-08 16:18:35,347 INFO L175 Difference]: Start difference. First operand has 60 places, 42 transitions, 171 flow. Second operand 6 states and 146 transitions. [2024-11-08 16:18:35,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 347 flow [2024-11-08 16:18:35,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 68 transitions, 327 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-08 16:18:35,351 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 180 flow [2024-11-08 16:18:35,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2024-11-08 16:18:35,353 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2024-11-08 16:18:35,354 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 180 flow [2024-11-08 16:18:35,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 16:18:35,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:35,355 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:35,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:18:35,355 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:35,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2092411744, now seen corresponding path program 1 times [2024-11-08 16:18:35,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:35,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52138361] [2024-11-08 16:18:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:35,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:18:35,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:18:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:18:35,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:18:35,815 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:18:35,817 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-08 16:18:35,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-08 16:18:35,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-08 16:18:35,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-08 16:18:35,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-08 16:18:35,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-08 16:18:35,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-08 16:18:35,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:18:35,822 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:35,956 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:18:35,956 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:18:35,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:18:35 BasicIcfg [2024-11-08 16:18:35,966 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:18:35,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:18:35,967 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:18:35,967 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:18:35,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:18:23" (3/4) ... [2024-11-08 16:18:35,972 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:18:35,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:18:35,975 INFO L158 Benchmark]: Toolchain (without parser) took 15183.09ms. Allocated memory was 117.4MB in the beginning and 373.3MB in the end (delta: 255.9MB). Free memory was 82.7MB in the beginning and 147.1MB in the end (delta: -64.4MB). Peak memory consumption was 193.2MB. Max. memory is 16.1GB. [2024-11-08 16:18:35,975 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:18:35,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.27ms. Allocated memory was 117.4MB in the beginning and 161.5MB in the end (delta: 44.0MB). Free memory was 82.7MB in the beginning and 129.0MB in the end (delta: -46.3MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2024-11-08 16:18:35,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.94ms. Allocated memory is still 161.5MB. Free memory was 129.0MB in the beginning and 129.0MB in the end (delta: -35.6kB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-11-08 16:18:35,979 INFO L158 Benchmark]: Boogie Preprocessor took 115.77ms. Allocated memory is still 161.5MB. Free memory was 129.0MB in the beginning and 124.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:18:35,979 INFO L158 Benchmark]: RCFGBuilder took 1209.76ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 120.8MB in the end (delta: 4.0MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2024-11-08 16:18:35,980 INFO L158 Benchmark]: TraceAbstraction took 12866.48ms. Allocated memory was 161.5MB in the beginning and 373.3MB in the end (delta: 211.8MB). Free memory was 120.8MB in the beginning and 148.1MB in the end (delta: -27.3MB). Peak memory consumption was 183.5MB. Max. memory is 16.1GB. [2024-11-08 16:18:35,980 INFO L158 Benchmark]: Witness Printer took 7.05ms. Allocated memory is still 373.3MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:18:35,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.27ms. Allocated memory was 117.4MB in the beginning and 161.5MB in the end (delta: 44.0MB). Free memory was 82.7MB in the beginning and 129.0MB in the end (delta: -46.3MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.94ms. Allocated memory is still 161.5MB. Free memory was 129.0MB in the beginning and 129.0MB in the end (delta: -35.6kB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.77ms. Allocated memory is still 161.5MB. Free memory was 129.0MB in the beginning and 124.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1209.76ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 120.8MB in the end (delta: 4.0MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12866.48ms. Allocated memory was 161.5MB in the beginning and 373.3MB in the end (delta: 211.8MB). Free memory was 120.8MB in the beginning and 148.1MB in the end (delta: -27.3MB). Peak memory consumption was 183.5MB. Max. memory is 16.1GB. * Witness Printer took 7.05ms. Allocated memory is still 373.3MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p0_EBX = 0; [L716] 0 int __unbuffered_p1_EAX = 0; [L718] 0 int __unbuffered_p1_EBX = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff1_thd0; [L732] 0 _Bool y$r_buff1_thd1; [L733] 0 _Bool y$r_buff1_thd2; [L734] 0 _Bool y$r_buff1_thd3; [L735] 0 _Bool y$read_delayed; [L736] 0 int *y$read_delayed_var; [L737] 0 int y$w_buff0; [L738] 0 _Bool y$w_buff0_used; [L739] 0 int y$w_buff1; [L740] 0 _Bool y$w_buff1_used; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L844] 0 pthread_t t1740; [L845] FCALL, FORK 0 pthread_create(&t1740, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1740=-3, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L846] 0 pthread_t t1741; [L847] FCALL, FORK 0 pthread_create(&t1741, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1740=-3, t1741=-2, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L774] 2 y$w_buff1 = y$w_buff0 [L775] 2 y$w_buff0 = 1 [L776] 2 y$w_buff1_used = y$w_buff0_used [L777] 2 y$w_buff0_used = (_Bool)1 [L778] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L778] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L779] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L780] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L781] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L782] 2 y$r_buff1_thd3 = y$r_buff0_thd3 [L783] 2 y$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L848] 0 pthread_t t1742; [L849] FCALL, FORK 0 pthread_create(&t1742, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1740=-3, t1741=-2, t1742=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L786] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L787] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L788] 2 y$flush_delayed = weak$$choice2 [L789] 2 y$mem_tmp = y [L790] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L791] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L792] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L793] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L794] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L795] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L796] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L797] 2 __unbuffered_p1_EAX = y [L798] 2 y = y$flush_delayed ? y$mem_tmp : y [L799] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L802] 2 __unbuffered_p1_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L819] 3 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L746] 1 __unbuffered_p0_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L749] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L750] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L751] 1 y$flush_delayed = weak$$choice2 [L752] 1 y$mem_tmp = y [L753] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L754] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L755] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L756] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L757] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L759] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L760] 1 __unbuffered_p0_EBX = y [L761] 1 y = y$flush_delayed ? y$mem_tmp : y [L762] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L805] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L806] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L807] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L808] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L809] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L822] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L823] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L824] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L825] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L826] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L812] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L829] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L851] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1740=-3, t1741=-2, t1742=-1, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L853] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L853] RET 0 assume_abort_if_not(main$tmp_guard0) [L855] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L856] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L857] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L858] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L859] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1740=-3, t1741=-2, t1742=-1, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L862] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1740=-3, t1741=-2, t1742=-1, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L864] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L18] 0 __assert_fail ("0", "rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 847]: 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. - UnprovableResult [Line: 849]: 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. - UnprovableResult [Line: 845]: 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 7 procedures, 68 locations, 7 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: 12.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 452 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 427 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1045 IncrementalHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 28 mSDtfsCounter, 1045 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=10, InterpolantAutomatonStates: 57, 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: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 701 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 16:18:36,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/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_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/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_6950e212-62eb-472b-ac69-60f3f46881c8/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 c0fbd235801aa6198331442d567d46062ed57d086b0069ca7d1e131a6b5917b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:18:38,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:18:39,095 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-08 16:18:39,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:18:39,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:18:39,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:18:39,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:18:39,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:18:39,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:18:39,149 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:18:39,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:18:39,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:18:39,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:18:39,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:18:39,152 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:18:39,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:18:39,153 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:18:39,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:18:39,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:18:39,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:18:39,155 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 16:18:39,156 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 16:18:39,157 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 16:18:39,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:18:39,158 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:18:39,158 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 16:18:39,159 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:18:39,160 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 16:18:39,160 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:18:39,160 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:18:39,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:18:39,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:18:39,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:18:39,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:18:39,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:18:39,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:18:39,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:18:39,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:18:39,164 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 16:18:39,165 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 16:18:39,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:18:39,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:18:39,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:18:39,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:18:39,167 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_6950e212-62eb-472b-ac69-60f3f46881c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0fbd235801aa6198331442d567d46062ed57d086b0069ca7d1e131a6b5917b8 [2024-11-08 16:18:39,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:18:39,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:18:39,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:18:39,698 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:18:39,699 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:18:39,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-11-08 16:18:42,190 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:18:42,582 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:18:42,583 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/sv-benchmarks/c/pthread-wmm/rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-08 16:18:42,611 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/data/8e5d93612/beb3a805765f44a397ebc5d53a789c9f/FLAG2a41d3716 [2024-11-08 16:18:42,637 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/data/8e5d93612/beb3a805765f44a397ebc5d53a789c9f [2024-11-08 16:18:42,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:18:42,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:18:42,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:18:42,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:18:42,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:18:42,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:18:42" (1/1) ... [2024-11-08 16:18:42,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cbc6c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:42, skipping insertion in model container [2024-11-08 16:18:42,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:18:42" (1/1) ... [2024-11-08 16:18:42,802 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:18:43,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:18:43,511 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:18:43,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:18:43,789 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:18:43,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43 WrapperNode [2024-11-08 16:18:43,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:18:43,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:18:43,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:18:43,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:18:43,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,896 INFO L138 Inliner]: procedures = 176, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 143 [2024-11-08 16:18:43,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:18:43,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:18:43,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:18:43,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:18:43,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,967 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 16:18:43,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:43,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:18:43,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:18:43,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:18:43,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:18:43,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (1/1) ... [2024-11-08 16:18:44,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:18:44,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:44,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:18:44,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:18:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 16:18:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:18:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 16:18:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-08 16:18:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-08 16:18:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-08 16:18:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-08 16:18:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-08 16:18:44,107 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-08 16:18:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 16:18:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:18:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:18:44,111 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 16:18:44,384 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:18:44,387 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:18:44,914 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:18:44,914 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:18:45,329 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:18:45,330 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:18:45,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:18:45 BoogieIcfgContainer [2024-11-08 16:18:45,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:18:45,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:18:45,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:18:45,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:18:45,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:18:42" (1/3) ... [2024-11-08 16:18:45,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583513c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:18:45, skipping insertion in model container [2024-11-08 16:18:45,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:18:43" (2/3) ... [2024-11-08 16:18:45,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583513c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:18:45, skipping insertion in model container [2024-11-08 16:18:45,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:18:45" (3/3) ... [2024-11-08 16:18:45,347 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-08 16:18:45,372 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:18:45,373 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-08 16:18:45,373 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:18:45,495 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 16:18:45,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-08 16:18:45,606 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-08 16:18:45,606 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:18:45,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-08 16:18:45,613 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-08 16:18:45,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-11-08 16:18:45,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:18:45,650 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;@51eed440, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:18:45,651 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 16:18:45,662 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:18:45,662 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-08 16:18:45,662 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:18:45,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:45,664 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:18:45,664 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:45,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:45,672 INFO L85 PathProgramCache]: Analyzing trace with hash -433133253, now seen corresponding path program 1 times [2024-11-08 16:18:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:45,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569198615] [2024-11-08 16:18:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:45,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:45,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:45,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:45,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:18:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:45,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:18:45,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:45,968 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 16:18:45,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:45,969 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:45,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569198615] [2024-11-08 16:18:45,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569198615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:45,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:45,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:18:45,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987468209] [2024-11-08 16:18:45,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:45,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:18:45,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:46,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:18:46,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:18:46,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-08 16:18:46,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:18:46,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:46,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-08 16:18:46,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:46,751 INFO L124 PetriNetUnfolderBase]: 772/1395 cut-off events. [2024-11-08 16:18:46,751 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 16:18:46,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 1395 events. 772/1395 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8863 event pairs, 96 based on Foata normal form. 90/1475 useless extension candidates. Maximal degree in co-relation 2596. Up to 989 conditions per place. [2024-11-08 16:18:46,773 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 30 selfloop transitions, 2 changer transitions 2/50 dead transitions. [2024-11-08 16:18:46,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 180 flow [2024-11-08 16:18:46,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:18:46,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:18:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-08 16:18:46,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-11-08 16:18:46,793 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 96 transitions. [2024-11-08 16:18:46,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 180 flow [2024-11-08 16:18:46,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 16:18:46,804 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-11-08 16:18:46,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-08 16:18:46,816 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-11-08 16:18:46,816 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-11-08 16:18:46,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:18:46,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:46,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:46,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:18:47,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:47,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:47,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:47,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1311824584, now seen corresponding path program 1 times [2024-11-08 16:18:47,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:47,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425548111] [2024-11-08 16:18:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:47,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:47,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:47,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:47,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:18:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:47,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 16:18:47,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:47,248 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 16:18:47,249 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:47,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:47,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425548111] [2024-11-08 16:18:47,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425548111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:47,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:47,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:18:47,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20234425] [2024-11-08 16:18:47,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:47,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:18:47,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:47,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:18:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:18:47,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-08 16:18:47,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 16:18:47,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:47,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-08 16:18:47,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:47,685 INFO L124 PetriNetUnfolderBase]: 676/1308 cut-off events. [2024-11-08 16:18:47,685 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-08 16:18:47,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2447 conditions, 1308 events. 676/1308 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8630 event pairs, 676 based on Foata normal form. 45/1310 useless extension candidates. Maximal degree in co-relation 2437. Up to 1028 conditions per place. [2024-11-08 16:18:47,696 INFO L140 encePairwiseOnDemand]: 42/44 looper letters, 18 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-08 16:18:47,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 120 flow [2024-11-08 16:18:47,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:18:47,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:18:47,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-08 16:18:47,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-11-08 16:18:47,699 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 3 states and 75 transitions. [2024-11-08 16:18:47,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 120 flow [2024-11-08 16:18:47,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:18:47,702 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-08 16:18:47,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-08 16:18:47,703 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -5 predicate places. [2024-11-08 16:18:47,703 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-08 16:18:47,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 16:18:47,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:47,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:47,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 16:18:47,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:47,905 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:47,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:47,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1311824569, now seen corresponding path program 1 times [2024-11-08 16:18:47,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:47,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886681385] [2024-11-08 16:18:47,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:47,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:47,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:47,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:47,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:18:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:48,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:18:48,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:48,144 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 16:18:48,145 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:48,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:48,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886681385] [2024-11-08 16:18:48,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886681385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:48,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:48,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:18:48,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159345120] [2024-11-08 16:18:48,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:48,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:18:48,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:48,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:18:48,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:18:48,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:48,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 16:18:48,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:48,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:48,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:48,784 INFO L124 PetriNetUnfolderBase]: 1459/2545 cut-off events. [2024-11-08 16:18:48,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:18:48,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4811 conditions, 2545 events. 1459/2545 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 15924 event pairs, 179 based on Foata normal form. 96/2622 useless extension candidates. Maximal degree in co-relation 4805. Up to 1281 conditions per place. [2024-11-08 16:18:48,805 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 42 selfloop transitions, 5 changer transitions 1/59 dead transitions. [2024-11-08 16:18:48,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 59 transitions, 226 flow [2024-11-08 16:18:48,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:18:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:18:48,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-08 16:18:48,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-08 16:18:48,811 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 4 states and 110 transitions. [2024-11-08 16:18:48,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 59 transitions, 226 flow [2024-11-08 16:18:48,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 59 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:18:48,814 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 109 flow [2024-11-08 16:18:48,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2024-11-08 16:18:48,815 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2024-11-08 16:18:48,815 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 109 flow [2024-11-08 16:18:48,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 16:18:48,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:48,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:48,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:18:49,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:49,018 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:49,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash -291572427, now seen corresponding path program 1 times [2024-11-08 16:18:49,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:49,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839618707] [2024-11-08 16:18:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:49,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:49,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:49,022 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:49,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:18:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:49,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:18:49,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:49,212 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 16:18:49,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:49,213 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:49,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839618707] [2024-11-08 16:18:49,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839618707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:49,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:49,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:18:49,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483724599] [2024-11-08 16:18:49,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:49,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:18:49,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:49,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:18:49,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:18:49,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:49,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 16:18:49,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:49,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:49,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:49,745 INFO L124 PetriNetUnfolderBase]: 951/1661 cut-off events. [2024-11-08 16:18:49,746 INFO L125 PetriNetUnfolderBase]: For 412/412 co-relation queries the response was YES. [2024-11-08 16:18:49,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3754 conditions, 1661 events. 951/1661 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 9085 event pairs, 95 based on Foata normal form. 80/1726 useless extension candidates. Maximal degree in co-relation 3745. Up to 581 conditions per place. [2024-11-08 16:18:49,758 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 53 selfloop transitions, 8 changer transitions 1/73 dead transitions. [2024-11-08 16:18:49,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 326 flow [2024-11-08 16:18:49,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:18:49,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:18:49,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-11-08 16:18:49,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6318181818181818 [2024-11-08 16:18:49,763 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 109 flow. Second operand 5 states and 139 transitions. [2024-11-08 16:18:49,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 326 flow [2024-11-08 16:18:49,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 73 transitions, 316 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 16:18:49,767 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 149 flow [2024-11-08 16:18:49,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2024-11-08 16:18:49,770 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-11-08 16:18:49,771 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 149 flow [2024-11-08 16:18:49,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 16:18:49,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:49,771 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:49,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:18:49,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:49,976 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:49,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:49,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2120823210, now seen corresponding path program 1 times [2024-11-08 16:18:49,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:49,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550170023] [2024-11-08 16:18:49,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:49,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:49,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:49,979 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:49,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:18:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:50,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:18:50,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:50,172 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 16:18:50,173 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:50,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:50,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550170023] [2024-11-08 16:18:50,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550170023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:50,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:50,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:18:50,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818729075] [2024-11-08 16:18:50,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:50,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:18:50,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:50,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:18:50,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:18:50,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 16:18:50,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 16:18:50,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:50,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 16:18:50,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:50,628 INFO L124 PetriNetUnfolderBase]: 563/945 cut-off events. [2024-11-08 16:18:50,629 INFO L125 PetriNetUnfolderBase]: For 768/768 co-relation queries the response was YES. [2024-11-08 16:18:50,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2458 conditions, 945 events. 563/945 cut-off events. For 768/768 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4301 event pairs, 79 based on Foata normal form. 40/970 useless extension candidates. Maximal degree in co-relation 2447. Up to 308 conditions per place. [2024-11-08 16:18:50,637 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 46 selfloop transitions, 11 changer transitions 1/69 dead transitions. [2024-11-08 16:18:50,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 69 transitions, 333 flow [2024-11-08 16:18:50,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:18:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:18:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2024-11-08 16:18:50,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-11-08 16:18:50,640 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 149 flow. Second operand 6 states and 150 transitions. [2024-11-08 16:18:50,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 69 transitions, 333 flow [2024-11-08 16:18:50,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 69 transitions, 308 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-08 16:18:50,650 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 163 flow [2024-11-08 16:18:50,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2024-11-08 16:18:50,652 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2024-11-08 16:18:50,653 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 163 flow [2024-11-08 16:18:50,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 16:18:50,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:50,654 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:50,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:18:50,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:50,856 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:50,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:50,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1422016320, now seen corresponding path program 1 times [2024-11-08 16:18:50,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:50,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323633693] [2024-11-08 16:18:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:50,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:50,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:50,860 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:50,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:18:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:50,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 16:18:50,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:51,277 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 16:18:51,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:51,277 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:51,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323633693] [2024-11-08 16:18:51,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323633693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:51,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:51,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:18:51,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794913603] [2024-11-08 16:18:51,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:51,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:18:51,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:18:51,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:18:51,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-11-08 16:18:51,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 163 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 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 16:18:51,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:51,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-11-08 16:18:51,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:51,955 INFO L124 PetriNetUnfolderBase]: 1219/1982 cut-off events. [2024-11-08 16:18:51,955 INFO L125 PetriNetUnfolderBase]: For 1617/1617 co-relation queries the response was YES. [2024-11-08 16:18:51,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 1982 events. 1219/1982 cut-off events. For 1617/1617 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 9710 event pairs, 341 based on Foata normal form. 8/1975 useless extension candidates. Maximal degree in co-relation 5104. Up to 822 conditions per place. [2024-11-08 16:18:51,967 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 53 selfloop transitions, 7 changer transitions 24/92 dead transitions. [2024-11-08 16:18:51,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 92 transitions, 525 flow [2024-11-08 16:18:51,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:18:51,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:18:51,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2024-11-08 16:18:51,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5194805194805194 [2024-11-08 16:18:51,969 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 163 flow. Second operand 7 states and 160 transitions. [2024-11-08 16:18:51,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 92 transitions, 525 flow [2024-11-08 16:18:51,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 92 transitions, 408 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-11-08 16:18:51,986 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 164 flow [2024-11-08 16:18:51,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=164, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-11-08 16:18:51,987 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2024-11-08 16:18:51,987 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 164 flow [2024-11-08 16:18:51,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 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 16:18:51,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:51,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:52,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:18:52,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:52,188 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:52,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:52,189 INFO L85 PathProgramCache]: Analyzing trace with hash -206792270, now seen corresponding path program 2 times [2024-11-08 16:18:52,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:52,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255552] [2024-11-08 16:18:52,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:18:52,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:52,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:52,191 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:52,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:18:52,304 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:18:52,304 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:18:52,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 16:18:52,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:54,372 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 16:18:54,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:54,373 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:54,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255552] [2024-11-08 16:18:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:54,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:54,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 16:18:54,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308756123] [2024-11-08 16:18:54,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:54,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:18:54,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:54,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:18:54,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:18:54,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 44 [2024-11-08 16:18:54,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 164 flow. Second operand has 12 states, 12 states have (on average 15.75) internal successors, (189), 12 states have internal predecessors, (189), 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 16:18:54,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:54,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 44 [2024-11-08 16:18:54,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:55,534 INFO L124 PetriNetUnfolderBase]: 695/1184 cut-off events. [2024-11-08 16:18:55,534 INFO L125 PetriNetUnfolderBase]: For 345/350 co-relation queries the response was YES. [2024-11-08 16:18:55,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2737 conditions, 1184 events. 695/1184 cut-off events. For 345/350 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5231 event pairs, 175 based on Foata normal form. 10/1178 useless extension candidates. Maximal degree in co-relation 2724. Up to 733 conditions per place. [2024-11-08 16:18:55,544 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 45 selfloop transitions, 19 changer transitions 31/107 dead transitions. [2024-11-08 16:18:55,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 107 transitions, 565 flow [2024-11-08 16:18:55,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:18:55,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 16:18:55,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 238 transitions. [2024-11-08 16:18:55,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49173553719008267 [2024-11-08 16:18:55,547 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 164 flow. Second operand 11 states and 238 transitions. [2024-11-08 16:18:55,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 107 transitions, 565 flow [2024-11-08 16:18:55,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 107 transitions, 548 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-08 16:18:55,552 INFO L231 Difference]: Finished difference. Result has 70 places, 57 transitions, 299 flow [2024-11-08 16:18:55,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=299, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2024-11-08 16:18:55,553 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 21 predicate places. [2024-11-08 16:18:55,554 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 299 flow [2024-11-08 16:18:55,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 12 states have internal predecessors, (189), 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 16:18:55,554 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:55,555 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:55,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 16:18:55,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:55,756 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:55,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:55,757 INFO L85 PathProgramCache]: Analyzing trace with hash 367700224, now seen corresponding path program 3 times [2024-11-08 16:18:55,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:55,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144337027] [2024-11-08 16:18:55,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 16:18:55,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:55,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:55,761 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:55,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:18:55,908 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-08 16:18:55,908 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:18:55,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 16:18:55,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:56,103 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 16:18:56,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:56,104 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144337027] [2024-11-08 16:18:56,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144337027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:56,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:56,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:18:56,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783763185] [2024-11-08 16:18:56,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:56,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:18:56,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:56,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:18:56,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:18:56,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-11-08 16:18:56,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 299 flow. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 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 16:18:56,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:56,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-11-08 16:18:56,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:56,919 INFO L124 PetriNetUnfolderBase]: 934/1563 cut-off events. [2024-11-08 16:18:56,919 INFO L125 PetriNetUnfolderBase]: For 939/951 co-relation queries the response was YES. [2024-11-08 16:18:56,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4142 conditions, 1563 events. 934/1563 cut-off events. For 939/951 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7215 event pairs, 220 based on Foata normal form. 10/1544 useless extension candidates. Maximal degree in co-relation 4122. Up to 835 conditions per place. [2024-11-08 16:18:56,932 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 41 selfloop transitions, 17 changer transitions 40/107 dead transitions. [2024-11-08 16:18:56,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 107 transitions, 703 flow [2024-11-08 16:18:56,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:18:56,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 16:18:56,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2024-11-08 16:18:56,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4671717171717172 [2024-11-08 16:18:56,935 INFO L175 Difference]: Start difference. First operand has 70 places, 57 transitions, 299 flow. Second operand 9 states and 185 transitions. [2024-11-08 16:18:56,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 107 transitions, 703 flow [2024-11-08 16:18:56,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 107 transitions, 641 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-08 16:18:56,942 INFO L231 Difference]: Finished difference. Result has 72 places, 57 transitions, 318 flow [2024-11-08 16:18:56,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=318, PETRI_PLACES=72, PETRI_TRANSITIONS=57} [2024-11-08 16:18:56,943 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 23 predicate places. [2024-11-08 16:18:56,943 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 57 transitions, 318 flow [2024-11-08 16:18:56,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 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 16:18:56,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:56,944 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:56,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 16:18:57,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:57,149 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:57,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:57,149 INFO L85 PathProgramCache]: Analyzing trace with hash 547034332, now seen corresponding path program 4 times [2024-11-08 16:18:57,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:57,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121759307] [2024-11-08 16:18:57,150 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 16:18:57,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:57,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:57,153 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:57,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 16:18:57,279 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 16:18:57,280 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:18:57,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 16:18:57,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:58,352 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 16:18:58,352 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:58,352 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:18:58,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121759307] [2024-11-08 16:18:58,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121759307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:58,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:18:58,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 16:18:58,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378712334] [2024-11-08 16:18:58,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:58,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:18:58,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:18:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:18:58,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:18:58,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-11-08 16:18:58,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 57 transitions, 318 flow. Second operand has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 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 16:18:58,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:58,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-11-08 16:18:58,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:59,295 INFO L124 PetriNetUnfolderBase]: 725/1425 cut-off events. [2024-11-08 16:18:59,295 INFO L125 PetriNetUnfolderBase]: For 608/617 co-relation queries the response was YES. [2024-11-08 16:18:59,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3481 conditions, 1425 events. 725/1425 cut-off events. For 608/617 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8060 event pairs, 303 based on Foata normal form. 14/1350 useless extension candidates. Maximal degree in co-relation 3460. Up to 405 conditions per place. [2024-11-08 16:18:59,311 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 44 selfloop transitions, 8 changer transitions 28/109 dead transitions. [2024-11-08 16:18:59,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 109 transitions, 612 flow [2024-11-08 16:18:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:18:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 16:18:59,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 226 transitions. [2024-11-08 16:18:59,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5707070707070707 [2024-11-08 16:18:59,313 INFO L175 Difference]: Start difference. First operand has 72 places, 57 transitions, 318 flow. Second operand 9 states and 226 transitions. [2024-11-08 16:18:59,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 109 transitions, 612 flow [2024-11-08 16:18:59,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 109 transitions, 563 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-08 16:18:59,320 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 319 flow [2024-11-08 16:18:59,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=319, PETRI_PLACES=76, PETRI_TRANSITIONS=58} [2024-11-08 16:18:59,321 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 27 predicate places. [2024-11-08 16:18:59,321 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 319 flow [2024-11-08 16:18:59,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 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 16:18:59,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:59,322 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:59,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 16:18:59,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:59,523 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:18:59,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash 287932732, now seen corresponding path program 5 times [2024-11-08 16:18:59,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:18:59,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999561525] [2024-11-08 16:18:59,524 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 16:18:59,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:59,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:59,525 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:59,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 16:18:59,671 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:18:59,671 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-08 16:18:59,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:18:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:18:59,801 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 16:18:59,802 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:18:59,803 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-08 16:18:59,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-08 16:18:59,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-08 16:18:59,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-08 16:18:59,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-08 16:18:59,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-08 16:18:59,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-08 16:18:59,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 16:19:00,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:19:00,007 INFO L407 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2024-11-08 16:19:00,087 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:19:00,087 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:19:00,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:19:00 BasicIcfg [2024-11-08 16:19:00,093 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:19:00,093 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:19:00,093 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:19:00,094 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:19:00,094 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:18:45" (3/4) ... [2024-11-08 16:19:00,096 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:19:00,097 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:19:00,098 INFO L158 Benchmark]: Toolchain (without parser) took 17456.36ms. Allocated memory was 92.3MB in the beginning and 234.9MB in the end (delta: 142.6MB). Free memory was 66.8MB in the beginning and 199.0MB in the end (delta: -132.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-08 16:19:00,099 INFO L158 Benchmark]: CDTParser took 1.51ms. Allocated memory is still 62.9MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:19:00,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1145.01ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 62.7MB in the end (delta: 3.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-11-08 16:19:00,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.78ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 59.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:19:00,100 INFO L158 Benchmark]: Boogie Preprocessor took 98.94ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 56.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:19:00,100 INFO L158 Benchmark]: RCFGBuilder took 1335.17ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 43.0MB in the end (delta: 13.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2024-11-08 16:19:00,100 INFO L158 Benchmark]: TraceAbstraction took 14757.87ms. Allocated memory was 92.3MB in the beginning and 234.9MB in the end (delta: 142.6MB). Free memory was 42.1MB in the beginning and 199.0MB in the end (delta: -156.8MB). Peak memory consumption was 116.4MB. Max. memory is 16.1GB. [2024-11-08 16:19:00,101 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 234.9MB. Free memory is still 199.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:19:00,103 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51ms. Allocated memory is still 62.9MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1145.01ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 62.7MB in the end (delta: 3.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.78ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 59.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.94ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 56.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1335.17ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 43.0MB in the end (delta: 13.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14757.87ms. Allocated memory was 92.3MB in the beginning and 234.9MB in the end (delta: 142.6MB). Free memory was 42.1MB in the beginning and 199.0MB in the end (delta: -156.8MB). Peak memory consumption was 116.4MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 234.9MB. Free memory is still 199.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p0_EBX = 0; [L716] 0 int __unbuffered_p1_EAX = 0; [L718] 0 int __unbuffered_p1_EBX = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff1_thd0; [L732] 0 _Bool y$r_buff1_thd1; [L733] 0 _Bool y$r_buff1_thd2; [L734] 0 _Bool y$r_buff1_thd3; [L735] 0 _Bool y$read_delayed; [L736] 0 int *y$read_delayed_var; [L737] 0 int y$w_buff0; [L738] 0 _Bool y$w_buff0_used; [L739] 0 int y$w_buff1; [L740] 0 _Bool y$w_buff1_used; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L844] 0 pthread_t t1740; [L845] FCALL, FORK 0 pthread_create(&t1740, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1740=-2, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L846] 0 pthread_t t1741; [L847] FCALL, FORK 0 pthread_create(&t1741, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1740=-2, t1741=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L848] 0 pthread_t t1742; [L849] FCALL, FORK 0 pthread_create(&t1742, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1740=-2, t1741=-1, t1742=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L774] 2 y$w_buff1 = y$w_buff0 [L775] 2 y$w_buff0 = 1 [L776] 2 y$w_buff1_used = y$w_buff0_used [L777] 2 y$w_buff0_used = (_Bool)1 [L778] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L778] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L779] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L780] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L781] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L782] 2 y$r_buff1_thd3 = y$r_buff0_thd3 [L783] 2 y$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L786] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L787] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L788] 2 y$flush_delayed = weak$$choice2 [L789] 2 y$mem_tmp = y [L790] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L791] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L792] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L793] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L794] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L795] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L796] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L797] 2 __unbuffered_p1_EAX = y [L798] 2 y = y$flush_delayed ? y$mem_tmp : y [L799] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L802] 2 __unbuffered_p1_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L819] 3 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L746] 1 __unbuffered_p0_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L749] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L750] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L751] 1 y$flush_delayed = weak$$choice2 [L752] 1 y$mem_tmp = y [L753] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L754] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L755] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L756] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L757] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L759] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L760] 1 __unbuffered_p0_EBX = y [L761] 1 y = y$flush_delayed ? y$mem_tmp : y [L762] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L822] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L823] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L824] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L825] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L826] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L805] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L806] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L807] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L808] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L809] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L812] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L829] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L851] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1740=-2, t1741=-1, t1742=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L853] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L853] RET 0 assume_abort_if_not(main$tmp_guard0) [L855] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L856] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L857] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L858] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L859] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1740=-2, t1741=-1, t1742=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L862] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1740=-2, t1741=-1, t1742=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L864] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L18] 0 __assert_fail ("0", "rfi009_power.opt_pso.oepc_pso.opt_rmo.opt_tso.oepc_tso.opt.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 847]: 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. - UnprovableResult [Line: 849]: 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. - UnprovableResult [Line: 845]: 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 7 procedures, 68 locations, 7 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: 14.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 465 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 428 mSDsluCounter, 280 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1952 IncrementalHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 16 mSDtfsCounter, 1952 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=319occurred in iteration=9, InterpolantAutomatonStates: 57, 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, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 229 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 1255 SizeOfPredicates, 36 NumberOfNonLiveVariables, 936 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 16:19:00,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6950e212-62eb-472b-ac69-60f3f46881c8/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample