./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1 --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 4b21640b39ce7bcc8ee8415d7ec787ca73953d49130bebf43478653d490e2460 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:16:04,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:16:04,936 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 07:16:04,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:16:04,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:16:04,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:16:04,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:16:04,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:16:04,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:16:04,964 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:16:04,965 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:16:04,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:16:04,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:16:04,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:16:04,965 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:16:04,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:16:04,965 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:16:04,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:16:04,967 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:04,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:04,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:16:04,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:16:04,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:16:04,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:16:04,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:16:04,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:16:04,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:16:04,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:16:04,968 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1 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 -> 4b21640b39ce7bcc8ee8415d7ec787ca73953d49130bebf43478653d490e2460 [2024-12-02 07:16:05,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:16:05,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:16:05,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:16:05,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:16:05,214 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:16:05,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2024-12-02 07:16:07,878 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/data/aaa06a11c/6496fac4fb9340e5bb6690536dc26e22/FLAG6902d6c87 [2024-12-02 07:16:08,093 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:16:08,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2024-12-02 07:16:08,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/data/aaa06a11c/6496fac4fb9340e5bb6690536dc26e22/FLAG6902d6c87 [2024-12-02 07:16:08,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/data/aaa06a11c/6496fac4fb9340e5bb6690536dc26e22 [2024-12-02 07:16:08,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:16:08,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:16:08,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:08,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:16:08,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:16:08,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74aba5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08, skipping insertion in model container [2024-12-02 07:16:08,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:16:08,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:08,653 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:16:08,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:08,684 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:16:08,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08 WrapperNode [2024-12-02 07:16:08,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:08,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:08,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:16:08,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:16:08,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,713 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2024-12-02 07:16:08,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:08,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:16:08,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:16:08,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:16:08,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,734 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]. [2024-12-02 07:16:08,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,738 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:16:08,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:16:08,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:16:08,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:16:08,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:08,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:16:08,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:16:08,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:16:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:16:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-02 07:16:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-02 07:16:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-02 07:16:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-02 07:16:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:16:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:16:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:16:08,805 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 07:16:08,889 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:16:08,891 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:16:09,050 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:16:09,050 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:16:09,153 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:16:09,153 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:16:09,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:16:09 BoogieIcfgContainer [2024-12-02 07:16:09,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:16:09,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:16:09,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:16:09,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:16:09,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:16:08" (1/3) ... [2024-12-02 07:16:09,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8ae5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:16:09, skipping insertion in model container [2024-12-02 07:16:09,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08" (2/3) ... [2024-12-02 07:16:09,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8ae5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:16:09, skipping insertion in model container [2024-12-02 07:16:09,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:16:09" (3/3) ... [2024-12-02 07:16:09,163 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2024-12-02 07:16:09,174 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:16:09,175 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-2-unrolled.wvr.c that has 3 procedures, 29 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 07:16:09,176 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:16:09,217 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 07:16:09,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 74 flow [2024-12-02 07:16:09,272 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-12-02 07:16:09,275 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 07:16:09,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 2/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2024-12-02 07:16:09,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 30 transitions, 74 flow [2024-12-02 07:16:09,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 27 transitions, 66 flow [2024-12-02 07:16:09,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:16:09,298 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;@6297ba24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:16:09,298 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-02 07:16:09,309 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:16:09,309 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-12-02 07:16:09,309 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 07:16:09,309 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:16:09,310 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:09,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-02 07:16:09,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:09,314 INFO L85 PathProgramCache]: Analyzing trace with hash -835961030, now seen corresponding path program 1 times [2024-12-02 07:16:09,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:09,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56884133] [2024-12-02 07:16:09,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:09,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:16:09,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:09,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56884133] [2024-12-02 07:16:09,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56884133] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:09,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:09,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:16:09,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451207927] [2024-12-02 07:16:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:09,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:16:09,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:09,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:16:09,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:16:09,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-12-02 07:16:09,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:09,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:16:09,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-12-02 07:16:09,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:16:09,745 INFO L124 PetriNetUnfolderBase]: 161/297 cut-off events. [2024-12-02 07:16:09,746 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-12-02 07:16:09,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 297 events. 161/297 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1116 event pairs, 32 based on Foata normal form. 2/291 useless extension candidates. Maximal degree in co-relation 528. Up to 243 conditions per place. [2024-12-02 07:16:09,751 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 23 selfloop transitions, 5 changer transitions 1/34 dead transitions. [2024-12-02 07:16:09,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 147 flow [2024-12-02 07:16:09,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:16:09,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:16:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-12-02 07:16:09,763 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-12-02 07:16:09,765 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 66 flow. Second operand 3 states and 55 transitions. [2024-12-02 07:16:09,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 147 flow [2024-12-02 07:16:09,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 34 transitions, 133 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 07:16:09,772 INFO L231 Difference]: Finished difference. Result has 29 places, 27 transitions, 79 flow [2024-12-02 07:16:09,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=27} [2024-12-02 07:16:09,778 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2024-12-02 07:16:09,778 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 27 transitions, 79 flow [2024-12-02 07:16:09,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:09,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:16:09,779 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:09,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:16:09,779 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-02 07:16:09,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1166767558, now seen corresponding path program 1 times [2024-12-02 07:16:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:09,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357578161] [2024-12-02 07:16:09,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:09,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:16:09,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:09,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357578161] [2024-12-02 07:16:09,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357578161] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:09,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:09,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:16:09,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695352728] [2024-12-02 07:16:09,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:09,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:16:09,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:09,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:16:09,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:16:09,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-12-02 07:16:09,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:09,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:16:09,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-12-02 07:16:09,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:16:10,107 INFO L124 PetriNetUnfolderBase]: 192/350 cut-off events. [2024-12-02 07:16:10,107 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-12-02 07:16:10,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 350 events. 192/350 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1435 event pairs, 24 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 184. Up to 192 conditions per place. [2024-12-02 07:16:10,110 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 35 selfloop transitions, 10 changer transitions 3/55 dead transitions. [2024-12-02 07:16:10,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 55 transitions, 241 flow [2024-12-02 07:16:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:16:10,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 07:16:10,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2024-12-02 07:16:10,112 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62 [2024-12-02 07:16:10,112 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 79 flow. Second operand 5 states and 93 transitions. [2024-12-02 07:16:10,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 55 transitions, 241 flow [2024-12-02 07:16:10,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 55 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:16:10,114 INFO L231 Difference]: Finished difference. Result has 35 places, 34 transitions, 135 flow [2024-12-02 07:16:10,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=35, PETRI_TRANSITIONS=34} [2024-12-02 07:16:10,115 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2024-12-02 07:16:10,115 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 34 transitions, 135 flow [2024-12-02 07:16:10,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:10,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:16:10,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:10,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:16:10,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-02 07:16:10,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:10,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1290022232, now seen corresponding path program 2 times [2024-12-02 07:16:10,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:10,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300594841] [2024-12-02 07:16:10,117 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:16:10,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:10,134 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:16:10,134 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:16:10,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:16:10,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300594841] [2024-12-02 07:16:10,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300594841] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:10,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:10,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:16:10,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418147723] [2024-12-02 07:16:10,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:10,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:16:10,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:10,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:16:10,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:16:10,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-12-02 07:16:10,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:10,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:16:10,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-12-02 07:16:10,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:16:10,373 INFO L124 PetriNetUnfolderBase]: 173/336 cut-off events. [2024-12-02 07:16:10,373 INFO L125 PetriNetUnfolderBase]: For 223/227 co-relation queries the response was YES. [2024-12-02 07:16:10,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 336 events. 173/336 cut-off events. For 223/227 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1345 event pairs, 11 based on Foata normal form. 21/349 useless extension candidates. Maximal degree in co-relation 278. Up to 132 conditions per place. [2024-12-02 07:16:10,376 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 39 selfloop transitions, 12 changer transitions 3/61 dead transitions. [2024-12-02 07:16:10,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 61 transitions, 339 flow [2024-12-02 07:16:10,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:16:10,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 07:16:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2024-12-02 07:16:10,378 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2024-12-02 07:16:10,378 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 135 flow. Second operand 5 states and 94 transitions. [2024-12-02 07:16:10,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 61 transitions, 339 flow [2024-12-02 07:16:10,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 61 transitions, 339 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:16:10,381 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 221 flow [2024-12-02 07:16:10,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2024-12-02 07:16:10,382 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 11 predicate places. [2024-12-02 07:16:10,382 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 221 flow [2024-12-02 07:16:10,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:10,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:16:10,382 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:10,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:16:10,382 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-02 07:16:10,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash -375802139, now seen corresponding path program 1 times [2024-12-02 07:16:10,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:10,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601131621] [2024-12-02 07:16:10,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:10,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:16:10,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:10,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601131621] [2024-12-02 07:16:10,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601131621] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:10,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:10,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:16:10,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873043625] [2024-12-02 07:16:10,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:10,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:16:10,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:10,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:16:10,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:16:10,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-12-02 07:16:10,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:10,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:16:10,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-12-02 07:16:10,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:16:10,616 INFO L124 PetriNetUnfolderBase]: 171/334 cut-off events. [2024-12-02 07:16:10,616 INFO L125 PetriNetUnfolderBase]: For 727/735 co-relation queries the response was YES. [2024-12-02 07:16:10,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1136 conditions, 334 events. 171/334 cut-off events. For 727/735 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1355 event pairs, 23 based on Foata normal form. 11/336 useless extension candidates. Maximal degree in co-relation 384. Up to 201 conditions per place. [2024-12-02 07:16:10,619 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 42 selfloop transitions, 9 changer transitions 4/62 dead transitions. [2024-12-02 07:16:10,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 62 transitions, 425 flow [2024-12-02 07:16:10,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:16:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 07:16:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2024-12-02 07:16:10,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2024-12-02 07:16:10,621 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 221 flow. Second operand 5 states and 91 transitions. [2024-12-02 07:16:10,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 62 transitions, 425 flow [2024-12-02 07:16:10,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 421 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-12-02 07:16:10,626 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 272 flow [2024-12-02 07:16:10,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=272, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-12-02 07:16:10,627 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 17 predicate places. [2024-12-02 07:16:10,627 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 272 flow [2024-12-02 07:16:10,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:10,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:16:10,627 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:10,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:16:10,627 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-02 07:16:10,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash -141639491, now seen corresponding path program 2 times [2024-12-02 07:16:10,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:10,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233201798] [2024-12-02 07:16:10,628 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:16:10,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:10,640 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:16:10,640 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:16:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:16:10,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:10,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233201798] [2024-12-02 07:16:10,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233201798] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:10,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:10,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:16:10,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025583286] [2024-12-02 07:16:10,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:10,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:16:10,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:10,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:16:10,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:16:10,717 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-12-02 07:16:10,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 272 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:10,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:16:10,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-12-02 07:16:10,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:16:10,839 INFO L124 PetriNetUnfolderBase]: 159/320 cut-off events. [2024-12-02 07:16:10,839 INFO L125 PetriNetUnfolderBase]: For 908/916 co-relation queries the response was YES. [2024-12-02 07:16:10,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 320 events. 159/320 cut-off events. For 908/916 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1176 event pairs, 24 based on Foata normal form. 18/333 useless extension candidates. Maximal degree in co-relation 830. Up to 149 conditions per place. [2024-12-02 07:16:10,841 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 42 selfloop transitions, 12 changer transitions 2/63 dead transitions. [2024-12-02 07:16:10,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 484 flow [2024-12-02 07:16:10,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:16:10,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 07:16:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-12-02 07:16:10,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5933333333333334 [2024-12-02 07:16:10,843 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 272 flow. Second operand 5 states and 89 transitions. [2024-12-02 07:16:10,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 484 flow [2024-12-02 07:16:10,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 468 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-12-02 07:16:10,848 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 335 flow [2024-12-02 07:16:10,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=335, PETRI_PLACES=55, PETRI_TRANSITIONS=45} [2024-12-02 07:16:10,849 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 23 predicate places. [2024-12-02 07:16:10,849 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 335 flow [2024-12-02 07:16:10,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:10,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:16:10,850 INFO L206 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] [2024-12-02 07:16:10,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:16:10,850 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-02 07:16:10,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1989090881, now seen corresponding path program 1 times [2024-12-02 07:16:10,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:10,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947865088] [2024-12-02 07:16:10,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:10,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:16:11,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:11,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947865088] [2024-12-02 07:16:11,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947865088] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:11,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:11,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:16:11,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19109037] [2024-12-02 07:16:11,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:11,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:16:11,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:11,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:16:11,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:16:11,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-12-02 07:16:11,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 335 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:11,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:16:11,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-12-02 07:16:11,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:16:11,225 INFO L124 PetriNetUnfolderBase]: 164/320 cut-off events. [2024-12-02 07:16:11,225 INFO L125 PetriNetUnfolderBase]: For 1090/1106 co-relation queries the response was YES. [2024-12-02 07:16:11,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1221 conditions, 320 events. 164/320 cut-off events. For 1090/1106 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1157 event pairs, 37 based on Foata normal form. 3/310 useless extension candidates. Maximal degree in co-relation 933. Up to 105 conditions per place. [2024-12-02 07:16:11,228 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2024-12-02 07:16:11,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 559 flow [2024-12-02 07:16:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:16:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:16:11,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 84 transitions. [2024-12-02 07:16:11,229 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-12-02 07:16:11,230 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 335 flow. Second operand 6 states and 84 transitions. [2024-12-02 07:16:11,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 559 flow [2024-12-02 07:16:11,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 63 transitions, 542 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-12-02 07:16:11,235 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2024-12-02 07:16:11,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2024-12-02 07:16:11,236 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 25 predicate places. [2024-12-02 07:16:11,236 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2024-12-02 07:16:11,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:11,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-12-02 07:16:11,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-12-02 07:16:11,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-12-02 07:16:11,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-12-02 07:16:11,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:16:11,239 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2024-12-02 07:16:11,243 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 07:16:11,243 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:16:11,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:16:11 BasicIcfg [2024-12-02 07:16:11,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:16:11,248 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:16:11,249 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:16:11,249 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:16:11,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:16:09" (3/4) ... [2024-12-02 07:16:11,251 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:16:11,254 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-12-02 07:16:11,254 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-12-02 07:16:11,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2024-12-02 07:16:11,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-12-02 07:16:11,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 07:16:11,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 07:16:11,317 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:16:11,317 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:16:11,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:16:11,318 INFO L158 Benchmark]: Toolchain (without parser) took 2843.53ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 65.8MB in the end (delta: 52.1MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-12-02 07:16:11,318 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:11,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.50ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 106.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:16:11,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.32ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:11,319 INFO L158 Benchmark]: Boogie Preprocessor took 31.12ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:16:11,319 INFO L158 Benchmark]: RCFGBuilder took 407.83ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 83.3MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:16:11,319 INFO L158 Benchmark]: TraceAbstraction took 2092.11ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 70.4MB in the end (delta: 12.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-12-02 07:16:11,320 INFO L158 Benchmark]: Witness Printer took 68.96ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 65.8MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:11,321 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.50ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 106.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.32ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.12ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 407.83ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 83.3MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2092.11ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 70.4MB in the end (delta: 12.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 68.96ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 65.8MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 60]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 45 locations, 4 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: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 442 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 3 mSDtfsCounter, 442 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=5, InterpolantAutomatonStates: 29, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 07:16:11,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f7da64-ec1b-42c8-8d15-055ed16273d4/bin/uautomizer-verify-84ZbGMXZE1/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: TRUE