./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-trans.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_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/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_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/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_381f4935-d965-4880-abea-2e44479fa340/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 f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:11:45,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:11:45,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 11:11:45,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:11:45,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:11:45,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:11:45,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:11:45,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:11:45,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:11:45,927 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:11:45,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:11:45,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:11:45,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:11:45,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:11:45,927 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:11:45,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:11:45,928 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:11:45,929 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:11:45,929 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:11:45,929 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:11:45,929 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:11:45,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:11:45,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:11:45,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:11:45,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:45,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:11:45,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:11:45,930 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:11:45,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:11:45,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:45,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:11:45,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:11:45,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:11:45,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:11:45,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:11:45,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:11:45,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:11:45,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:11:45,931 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_381f4935-d965-4880-abea-2e44479fa340/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 -> f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 [2024-12-02 11:11:46,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:11:46,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:11:46,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:11:46,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:11:46,139 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:11:46,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2024-12-02 11:11:48,755 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/data/fe3710695/b695a8e35f674870ad4ea177235a44be/FLAG626725540 [2024-12-02 11:11:48,971 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:11:48,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2024-12-02 11:11:48,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/data/fe3710695/b695a8e35f674870ad4ea177235a44be/FLAG626725540 [2024-12-02 11:11:49,321 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/data/fe3710695/b695a8e35f674870ad4ea177235a44be [2024-12-02 11:11:49,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:11:49,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:11:49,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:11:49,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:11:49,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:11:49,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f3f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49, skipping insertion in model container [2024-12-02 11:11:49,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:11:49,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:11:49,476 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:11:49,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:11:49,505 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:11:49,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49 WrapperNode [2024-12-02 11:11:49,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:11:49,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:11:49,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:11:49,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:11:49,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,534 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 155 [2024-12-02 11:11:49,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:11:49,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:11:49,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:11:49,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:11:49,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,544 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,557 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 11:11:49,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,562 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:11:49,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:11:49,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:11:49,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:11:49,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (1/1) ... [2024-12-02 11:11:49,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:49,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:49,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:11:49,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:11:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:11:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-02 11:11:49,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-02 11:11:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-02 11:11:49,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-02 11:11:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-02 11:11:49,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-02 11:11:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:11:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:11:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:11:49,621 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 11:11:49,697 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:11:49,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:11:49,926 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 11:11:49,926 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:11:50,154 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:11:50,154 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:11:50,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:50 BoogieIcfgContainer [2024-12-02 11:11:50,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:11:50,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:11:50,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:11:50,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:11:50,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:11:49" (1/3) ... [2024-12-02 11:11:50,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe57a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:50, skipping insertion in model container [2024-12-02 11:11:50,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:49" (2/3) ... [2024-12-02 11:11:50,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe57a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:50, skipping insertion in model container [2024-12-02 11:11:50,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:50" (3/3) ... [2024-12-02 11:11:50,164 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2024-12-02 11:11:50,179 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:11:50,181 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-trans.wvr.c that has 4 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 11:11:50,181 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 11:11:50,242 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 11:11:50,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 63 flow [2024-12-02 11:11:50,301 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-12-02 11:11:50,303 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-02 11:11:50,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 18 events. 0/18 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-12-02 11:11:50,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 21 transitions, 63 flow [2024-12-02 11:11:50,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 17 transitions, 52 flow [2024-12-02 11:11:50,315 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:11:50,326 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;@23a6a58c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:11:50,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-12-02 11:11:50,337 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:11:50,337 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-12-02 11:11:50,337 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-02 11:11:50,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:11:50,338 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:50,338 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 11:11:50,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:50,343 INFO L85 PathProgramCache]: Analyzing trace with hash -539688031, now seen corresponding path program 1 times [2024-12-02 11:11:50,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:50,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907291342] [2024-12-02 11:11:50,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:50,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:51,185 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 11:11:51,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:51,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907291342] [2024-12-02 11:11:51,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907291342] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:51,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:51,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:51,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544740162] [2024-12-02 11:11:51,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:51,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:51,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:51,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:51,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:51,213 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-12-02 11:11:51,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:51,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:11:51,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-12-02 11:11:51,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:11:51,448 INFO L124 PetriNetUnfolderBase]: 32/85 cut-off events. [2024-12-02 11:11:51,448 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-12-02 11:11:51,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 85 events. 32/85 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 224 event pairs, 1 based on Foata normal form. 3/88 useless extension candidates. Maximal degree in co-relation 145. Up to 34 conditions per place. [2024-12-02 11:11:51,451 INFO L140 encePairwiseOnDemand]: 15/21 looper letters, 26 selfloop transitions, 6 changer transitions 5/38 dead transitions. [2024-12-02 11:11:51,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 198 flow [2024-12-02 11:11:51,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:11:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 11:11:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-12-02 11:11:51,464 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-12-02 11:11:51,465 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 52 flow. Second operand 6 states and 70 transitions. [2024-12-02 11:11:51,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 198 flow [2024-12-02 11:11:51,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 38 transitions, 166 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-12-02 11:11:51,472 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 69 flow [2024-12-02 11:11:51,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-12-02 11:11:51,478 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-12-02 11:11:51,478 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 69 flow [2024-12-02 11:11:51,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:51,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:11:51,479 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:51,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:11:51,479 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 11:11:51,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:51,480 INFO L85 PathProgramCache]: Analyzing trace with hash -99209937, now seen corresponding path program 2 times [2024-12-02 11:11:51,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:51,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264259932] [2024-12-02 11:11:51,480 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 11:11:51,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:51,506 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 11:11:51,507 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 11:11:51,910 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 11:11:51,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:51,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264259932] [2024-12-02 11:11:51,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264259932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:51,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:51,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:51,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462468790] [2024-12-02 11:11:51,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:51,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:51,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:51,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:51,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:51,913 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-12-02 11:11:51,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:51,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:11:51,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-12-02 11:11:51,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:11:52,138 INFO L124 PetriNetUnfolderBase]: 31/97 cut-off events. [2024-12-02 11:11:52,138 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-12-02 11:11:52,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 97 events. 31/97 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 319 event pairs, 3 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 256. Up to 46 conditions per place. [2024-12-02 11:11:52,140 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 26 selfloop transitions, 7 changer transitions 7/41 dead transitions. [2024-12-02 11:11:52,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 41 transitions, 213 flow [2024-12-02 11:11:52,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:11:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 11:11:52,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-12-02 11:11:52,142 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-12-02 11:11:52,142 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 69 flow. Second operand 6 states and 70 transitions. [2024-12-02 11:11:52,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 41 transitions, 213 flow [2024-12-02 11:11:52,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 41 transitions, 209 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 11:11:52,144 INFO L231 Difference]: Finished difference. Result has 33 places, 20 transitions, 98 flow [2024-12-02 11:11:52,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2024-12-02 11:11:52,145 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2024-12-02 11:11:52,146 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 98 flow [2024-12-02 11:11:52,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:52,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:11:52,146 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:52,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:11:52,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 11:11:52,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:52,147 INFO L85 PathProgramCache]: Analyzing trace with hash 780220383, now seen corresponding path program 3 times [2024-12-02 11:11:52,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:52,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561283753] [2024-12-02 11:11:52,147 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 11:11:52,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:52,170 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 11:11:52,170 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 11:11:52,555 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 11:11:52,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:52,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561283753] [2024-12-02 11:11:52,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561283753] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:52,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:52,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:52,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898238803] [2024-12-02 11:11:52,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:52,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:52,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:52,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:52,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:52,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-12-02 11:11:52,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:52,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:11:52,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-12-02 11:11:52,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:11:52,726 INFO L124 PetriNetUnfolderBase]: 28/87 cut-off events. [2024-12-02 11:11:52,726 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-12-02 11:11:52,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 87 events. 28/87 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 266 event pairs, 1 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 284. Up to 42 conditions per place. [2024-12-02 11:11:52,727 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 23 selfloop transitions, 6 changer transitions 9/39 dead transitions. [2024-12-02 11:11:52,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 235 flow [2024-12-02 11:11:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:11:52,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 11:11:52,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2024-12-02 11:11:52,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2024-12-02 11:11:52,729 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 98 flow. Second operand 6 states and 68 transitions. [2024-12-02 11:11:52,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 235 flow [2024-12-02 11:11:52,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 221 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-12-02 11:11:52,731 INFO L231 Difference]: Finished difference. Result has 37 places, 19 transitions, 98 flow [2024-12-02 11:11:52,731 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=37, PETRI_TRANSITIONS=19} [2024-12-02 11:11:52,732 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2024-12-02 11:11:52,732 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 19 transitions, 98 flow [2024-12-02 11:11:52,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:52,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:11:52,733 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:52,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:11:52,733 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 11:11:52,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:52,734 INFO L85 PathProgramCache]: Analyzing trace with hash 756096717, now seen corresponding path program 4 times [2024-12-02 11:11:52,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:52,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925244170] [2024-12-02 11:11:52,734 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 11:11:52,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:52,750 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 11:11:52,750 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 11:11:53,025 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 11:11:53,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:53,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925244170] [2024-12-02 11:11:53,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925244170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:53,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:53,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:53,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233025162] [2024-12-02 11:11:53,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:53,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:53,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:53,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:53,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:53,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-12-02 11:11:53,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 19 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:53,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:11:53,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-12-02 11:11:53,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:11:53,169 INFO L124 PetriNetUnfolderBase]: 15/51 cut-off events. [2024-12-02 11:11:53,169 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-12-02 11:11:53,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 51 events. 15/51 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 179. Up to 16 conditions per place. [2024-12-02 11:11:53,170 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 16 selfloop transitions, 5 changer transitions 10/32 dead transitions. [2024-12-02 11:11:53,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 201 flow [2024-12-02 11:11:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:11:53,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 11:11:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 61 transitions. [2024-12-02 11:11:53,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48412698412698413 [2024-12-02 11:11:53,171 INFO L175 Difference]: Start difference. First operand has 37 places, 19 transitions, 98 flow. Second operand 6 states and 61 transitions. [2024-12-02 11:11:53,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 201 flow [2024-12-02 11:11:53,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 184 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-12-02 11:11:53,173 INFO L231 Difference]: Finished difference. Result has 36 places, 17 transitions, 79 flow [2024-12-02 11:11:53,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=36, PETRI_TRANSITIONS=17} [2024-12-02 11:11:53,174 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2024-12-02 11:11:53,174 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 17 transitions, 79 flow [2024-12-02 11:11:53,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:53,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:11:53,174 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:53,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:11:53,175 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 11:11:53,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:53,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2022210769, now seen corresponding path program 5 times [2024-12-02 11:11:53,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:53,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471791502] [2024-12-02 11:11:53,175 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 11:11:53,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:53,191 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 11:11:53,191 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 11:11:53,425 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 11:11:53,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:53,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471791502] [2024-12-02 11:11:53,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471791502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:53,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:53,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:53,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369584464] [2024-12-02 11:11:53,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:53,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:53,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:53,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:53,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:53,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-12-02 11:11:53,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 17 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:53,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:11:53,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-12-02 11:11:53,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:11:53,556 INFO L124 PetriNetUnfolderBase]: 8/37 cut-off events. [2024-12-02 11:11:53,556 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-12-02 11:11:53,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 37 events. 8/37 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 126. Up to 17 conditions per place. [2024-12-02 11:11:53,557 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 13 selfloop transitions, 3 changer transitions 10/27 dead transitions. [2024-12-02 11:11:53,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 164 flow [2024-12-02 11:11:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:11:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 11:11:53,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2024-12-02 11:11:53,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-12-02 11:11:53,559 INFO L175 Difference]: Start difference. First operand has 36 places, 17 transitions, 79 flow. Second operand 6 states and 57 transitions. [2024-12-02 11:11:53,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 164 flow [2024-12-02 11:11:53,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 130 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-12-02 11:11:53,560 INFO L231 Difference]: Finished difference. Result has 32 places, 15 transitions, 54 flow [2024-12-02 11:11:53,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=54, PETRI_PLACES=32, PETRI_TRANSITIONS=15} [2024-12-02 11:11:53,561 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2024-12-02 11:11:53,561 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 15 transitions, 54 flow [2024-12-02 11:11:53,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:53,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:11:53,561 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:53,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:11:53,562 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-12-02 11:11:53,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:53,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1166904115, now seen corresponding path program 6 times [2024-12-02 11:11:53,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:53,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259442547] [2024-12-02 11:11:53,562 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 11:11:53,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:53,577 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 11:11:53,577 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 11:11:53,785 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 11:11:53,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:53,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259442547] [2024-12-02 11:11:53,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259442547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:53,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:53,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:53,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664296617] [2024-12-02 11:11:53,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:53,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:53,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:53,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:53,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:53,786 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-12-02 11:11:53,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 15 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:53,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:11:53,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-12-02 11:11:53,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:11:53,872 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-12-02 11:11:53,872 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 11:11:53,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 19 events. 3/19 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 58. Up to 7 conditions per place. [2024-12-02 11:11:53,872 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2024-12-02 11:11:53,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 16 transitions, 86 flow [2024-12-02 11:11:53,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:11:53,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 11:11:53,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2024-12-02 11:11:53,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.373015873015873 [2024-12-02 11:11:53,873 INFO L175 Difference]: Start difference. First operand has 32 places, 15 transitions, 54 flow. Second operand 6 states and 47 transitions. [2024-12-02 11:11:53,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 16 transitions, 86 flow [2024-12-02 11:11:53,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 74 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-12-02 11:11:53,874 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-12-02 11:11:53,874 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2024-12-02 11:11:53,875 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-12-02 11:11:53,875 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-12-02 11:11:53,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 11:11:53,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-12-02 11:11:53,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-12-02 11:11:53,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-12-02 11:11:53,878 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-12-02 11:11:53,878 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-12-02 11:11:53,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:11:53,878 INFO L422 BasicCegarLoop]: Path program histogram: [6] [2024-12-02 11:11:53,880 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 11:11:53,880 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:11:53,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:11:53 BasicIcfg [2024-12-02 11:11:53,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:11:53,885 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:11:53,885 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:11:53,885 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:11:53,886 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:50" (3/4) ... [2024-12-02 11:11:53,887 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 11:11:53,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-12-02 11:11:53,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-12-02 11:11:53,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-12-02 11:11:53,893 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2024-12-02 11:11:53,893 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-12-02 11:11:53,893 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 11:11:53,893 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 11:11:53,948 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:11:53,948 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:11:53,948 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:11:53,949 INFO L158 Benchmark]: Toolchain (without parser) took 4625.27ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 117.8MB in the beginning and 235.6MB in the end (delta: -117.8MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2024-12-02 11:11:53,949 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:11:53,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.53ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 106.1MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:11:53,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.33ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:11:53,950 INFO L158 Benchmark]: Boogie Preprocessor took 34.59ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:11:53,950 INFO L158 Benchmark]: RCFGBuilder took 584.28ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 104.9MB in the end (delta: -2.4MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2024-12-02 11:11:53,950 INFO L158 Benchmark]: TraceAbstraction took 3727.93ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 104.2MB in the beginning and 240.7MB in the end (delta: -136.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2024-12-02 11:11:53,951 INFO L158 Benchmark]: Witness Printer took 63.27ms. Allocated memory is still 310.4MB. Free memory was 240.7MB in the beginning and 235.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:11:53,953 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.53ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 106.1MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.33ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.59ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 584.28ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 104.9MB in the end (delta: -2.4MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3727.93ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 104.2MB in the beginning and 240.7MB in the end (delta: -136.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 63.27ms. Allocated memory is still 310.4MB. Free memory was 240.7MB in the beginning and 235.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. 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 7 procedures, 31 locations, 5 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: 3.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 387 IncrementalHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 387 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=2, InterpolantAutomatonStates: 36, 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, 2.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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, 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 11:11:53,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381f4935-d965-4880-abea-2e44479fa340/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