./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-3.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_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB --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 b2ed7b18db6948b1f53058568aeeb46b9da6de135bdadf46ddc91e86240dfa66 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:20:28,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:20:28,220 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:20:28,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:20:28,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:20:28,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:20:28,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:20:28,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:20:28,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:20:28,263 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:20:28,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:20:28,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:20:28,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:20:28,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:20:28,264 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:20:28,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:20:28,264 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:20:28,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:20:28,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:20:28,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:20:28,265 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:20:28,265 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:20:28,265 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:20:28,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:20:28,265 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:20:28,265 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:20:28,265 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:20:28,266 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:20:28,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:20:28,266 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:20:28,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:20:28,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:20:28,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:20:28,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:28,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:20:28,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:20:28,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:20:28,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:20:28,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:28,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:20:28,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:20:28,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:20:28,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:20:28,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:20:28,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:20:28,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:20:28,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:20:28,268 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_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB 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 -> b2ed7b18db6948b1f53058568aeeb46b9da6de135bdadf46ddc91e86240dfa66 [2024-11-28 03:20:28,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:20:28,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:20:28,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:20:28,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:20:28,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:20:28,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/parallel-misc-3.wvr.c [2024-11-28 03:20:31,967 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/data/ac8bfa4f0/d65fed111d87451b8ea129db2caf66d8/FLAG68c7e07b3 [2024-11-28 03:20:32,441 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:20:32,444 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/sv-benchmarks/c/weaver/parallel-misc-3.wvr.c [2024-11-28 03:20:32,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/data/ac8bfa4f0/d65fed111d87451b8ea129db2caf66d8/FLAG68c7e07b3 [2024-11-28 03:20:32,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/data/ac8bfa4f0/d65fed111d87451b8ea129db2caf66d8 [2024-11-28 03:20:32,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:20:32,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:20:32,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:20:32,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:20:32,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:20:32,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fa054b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32, skipping insertion in model container [2024-11-28 03:20:32,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:20:32,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:20:32,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:20:32,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:20:32,869 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:20:32,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32 WrapperNode [2024-11-28 03:20:32,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:20:32,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:20:32,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:20:32,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:20:32,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,925 INFO L138 Inliner]: procedures = 18, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2024-11-28 03:20:32,927 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:20:32,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:20:32,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:20:32,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:20:32,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,971 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:20:32,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,980 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:32,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:20:32,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:20:32,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:20:32,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:20:32,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2024-11-28 03:20:33,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:33,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:33,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:20:33,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:20:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:20:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 03:20:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 03:20:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 03:20:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 03:20:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:20:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:20:33,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:20:33,075 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:20:33,182 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:20:33,184 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:20:33,429 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:20:33,429 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:20:33,610 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:20:33,610 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:20:33,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:33 BoogieIcfgContainer [2024-11-28 03:20:33,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:20:33,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:20:33,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:20:33,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:20:33,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:32" (1/3) ... [2024-11-28 03:20:33,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a41e12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:33, skipping insertion in model container [2024-11-28 03:20:33,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (2/3) ... [2024-11-28 03:20:33,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a41e12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:33, skipping insertion in model container [2024-11-28 03:20:33,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:33" (3/3) ... [2024-11-28 03:20:33,632 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-3.wvr.c [2024-11-28 03:20:33,653 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:20:33,655 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-3.wvr.c that has 3 procedures, 29 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-28 03:20:33,655 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:20:33,739 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:20:33,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 32 transitions, 78 flow [2024-11-28 03:20:33,856 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-28 03:20:33,862 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:20:33,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 4/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 59 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-11-28 03:20:33,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 32 transitions, 78 flow [2024-11-28 03:20:33,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 29 transitions, 70 flow [2024-11-28 03:20:33,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:20:33,912 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;@2b76e49e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:20:33,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 03:20:33,934 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:20:33,935 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-28 03:20:33,935 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:20:33,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:33,936 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:33,940 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)] === [2024-11-28 03:20:33,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:33,949 INFO L85 PathProgramCache]: Analyzing trace with hash -73277144, now seen corresponding path program 1 times [2024-11-28 03:20:33,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:33,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044870575] [2024-11-28 03:20:33,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:33,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:34,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:34,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:34,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044870575] [2024-11-28 03:20:34,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044870575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:34,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:34,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:20:34,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297193296] [2024-11-28 03:20:34,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:34,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:34,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:34,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:34,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:34,372 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-28 03:20:34,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:34,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:34,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-28 03:20:34,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:34,566 INFO L124 PetriNetUnfolderBase]: 146/284 cut-off events. [2024-11-28 03:20:34,566 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-28 03:20:34,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 284 events. 146/284 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1121 event pairs, 12 based on Foata normal form. 2/254 useless extension candidates. Maximal degree in co-relation 458. Up to 185 conditions per place. [2024-11-28 03:20:34,578 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 21 selfloop transitions, 5 changer transitions 1/38 dead transitions. [2024-11-28 03:20:34,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 151 flow [2024-11-28 03:20:34,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:20:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-28 03:20:34,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7395833333333334 [2024-11-28 03:20:34,599 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 70 flow. Second operand 3 states and 71 transitions. [2024-11-28 03:20:34,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 151 flow [2024-11-28 03:20:34,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 137 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:20:34,613 INFO L231 Difference]: Finished difference. Result has 29 places, 31 transitions, 91 flow [2024-11-28 03:20:34,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=29, PETRI_TRANSITIONS=31} [2024-11-28 03:20:34,624 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2024-11-28 03:20:34,624 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 31 transitions, 91 flow [2024-11-28 03:20:34,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:34,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:34,625 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:34,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:20:34,629 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)] === [2024-11-28 03:20:34,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:34,630 INFO L85 PathProgramCache]: Analyzing trace with hash -364959184, now seen corresponding path program 1 times [2024-11-28 03:20:34,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:34,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042578810] [2024-11-28 03:20:34,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:34,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:34,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:34,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:34,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042578810] [2024-11-28 03:20:34,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042578810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:34,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:34,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:20:34,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104492888] [2024-11-28 03:20:34,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:34,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:34,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:34,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:34,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:34,879 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 32 [2024-11-28 03:20:34,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 31 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:34,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:34,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 32 [2024-11-28 03:20:34,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:35,047 INFO L124 PetriNetUnfolderBase]: 129/272 cut-off events. [2024-11-28 03:20:35,048 INFO L125 PetriNetUnfolderBase]: For 48/60 co-relation queries the response was YES. [2024-11-28 03:20:35,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 272 events. 129/272 cut-off events. For 48/60 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1189 event pairs, 22 based on Foata normal form. 12/247 useless extension candidates. Maximal degree in co-relation 341. Up to 108 conditions per place. [2024-11-28 03:20:35,051 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 22 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2024-11-28 03:20:35,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 39 transitions, 160 flow [2024-11-28 03:20:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:20:35,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-28 03:20:35,053 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7395833333333334 [2024-11-28 03:20:35,054 INFO L175 Difference]: Start difference. First operand has 29 places, 31 transitions, 91 flow. Second operand 3 states and 71 transitions. [2024-11-28 03:20:35,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 39 transitions, 160 flow [2024-11-28 03:20:35,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 39 transitions, 153 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-28 03:20:35,056 INFO L231 Difference]: Finished difference. Result has 31 places, 32 transitions, 96 flow [2024-11-28 03:20:35,056 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=31, PETRI_TRANSITIONS=32} [2024-11-28 03:20:35,057 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2024-11-28 03:20:35,057 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 32 transitions, 96 flow [2024-11-28 03:20:35,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:35,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:35,058 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:35,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:20:35,058 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)] === [2024-11-28 03:20:35,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:35,059 INFO L85 PathProgramCache]: Analyzing trace with hash -674629076, now seen corresponding path program 1 times [2024-11-28 03:20:35,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:35,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281777400] [2024-11-28 03:20:35,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:35,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:35,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281777400] [2024-11-28 03:20:35,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281777400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:35,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:35,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:20:35,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533453794] [2024-11-28 03:20:35,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:35,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:35,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:35,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:35,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:35,181 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 32 [2024-11-28 03:20:35,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 32 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:35,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:35,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 32 [2024-11-28 03:20:35,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:35,308 INFO L124 PetriNetUnfolderBase]: 128/302 cut-off events. [2024-11-28 03:20:35,308 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2024-11-28 03:20:35,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 302 events. 128/302 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1485 event pairs, 22 based on Foata normal form. 9/264 useless extension candidates. Maximal degree in co-relation 330. Up to 107 conditions per place. [2024-11-28 03:20:35,312 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 23 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2024-11-28 03:20:35,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 174 flow [2024-11-28 03:20:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:35,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:20:35,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-28 03:20:35,316 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-28 03:20:35,316 INFO L175 Difference]: Start difference. First operand has 31 places, 32 transitions, 96 flow. Second operand 3 states and 70 transitions. [2024-11-28 03:20:35,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 174 flow [2024-11-28 03:20:35,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:20:35,319 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 106 flow [2024-11-28 03:20:35,319 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2024-11-28 03:20:35,322 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2024-11-28 03:20:35,322 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 106 flow [2024-11-28 03:20:35,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:35,323 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:35,323 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] [2024-11-28 03:20:35,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:20:35,323 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)] === [2024-11-28 03:20:35,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:35,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1420041424, now seen corresponding path program 1 times [2024-11-28 03:20:35,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:35,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881255849] [2024-11-28 03:20:35,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:35,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:20:35,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:35,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881255849] [2024-11-28 03:20:35,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881255849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:35,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:35,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:35,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254418244] [2024-11-28 03:20:35,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:35,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:35,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:35,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:35,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:35,786 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-28 03:20:35,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:35,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:35,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-28 03:20:35,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:35,961 INFO L124 PetriNetUnfolderBase]: 218/428 cut-off events. [2024-11-28 03:20:35,961 INFO L125 PetriNetUnfolderBase]: For 135/163 co-relation queries the response was YES. [2024-11-28 03:20:35,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 428 events. 218/428 cut-off events. For 135/163 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1784 event pairs, 50 based on Foata normal form. 16/394 useless extension candidates. Maximal degree in co-relation 379. Up to 139 conditions per place. [2024-11-28 03:20:35,969 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 33 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2024-11-28 03:20:35,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 51 transitions, 240 flow [2024-11-28 03:20:35,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:20:35,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:20:35,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-28 03:20:35,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7109375 [2024-11-28 03:20:35,973 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 106 flow. Second operand 4 states and 91 transitions. [2024-11-28 03:20:35,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 51 transitions, 240 flow [2024-11-28 03:20:35,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 51 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:20:35,977 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 136 flow [2024-11-28 03:20:35,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2024-11-28 03:20:35,979 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2024-11-28 03:20:35,980 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 136 flow [2024-11-28 03:20:35,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:35,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:35,980 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:35,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:20:35,982 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)] === [2024-11-28 03:20:35,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:35,983 INFO L85 PathProgramCache]: Analyzing trace with hash -104596873, now seen corresponding path program 1 times [2024-11-28 03:20:35,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:35,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108670022] [2024-11-28 03:20:35,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:35,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:20:36,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:36,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108670022] [2024-11-28 03:20:36,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108670022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:36,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:36,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:20:36,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648759674] [2024-11-28 03:20:36,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:36,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:36,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:36,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:36,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:36,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2024-11-28 03:20:36,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:36,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:36,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2024-11-28 03:20:36,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:36,261 INFO L124 PetriNetUnfolderBase]: 192/411 cut-off events. [2024-11-28 03:20:36,261 INFO L125 PetriNetUnfolderBase]: For 379/399 co-relation queries the response was YES. [2024-11-28 03:20:36,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1050 conditions, 411 events. 192/411 cut-off events. For 379/399 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1998 event pairs, 37 based on Foata normal form. 16/397 useless extension candidates. Maximal degree in co-relation 542. Up to 188 conditions per place. [2024-11-28 03:20:36,266 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 27 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2024-11-28 03:20:36,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 238 flow [2024-11-28 03:20:36,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:36,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:20:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-11-28 03:20:36,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-28 03:20:36,268 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 136 flow. Second operand 3 states and 68 transitions. [2024-11-28 03:20:36,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 238 flow [2024-11-28 03:20:36,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 234 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-28 03:20:36,273 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 138 flow [2024-11-28 03:20:36,273 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2024-11-28 03:20:36,275 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2024-11-28 03:20:36,275 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 138 flow [2024-11-28 03:20:36,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:36,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:36,275 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:36,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:20:36,275 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)] === [2024-11-28 03:20:36,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:36,276 INFO L85 PathProgramCache]: Analyzing trace with hash -48745295, now seen corresponding path program 1 times [2024-11-28 03:20:36,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:36,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587115366] [2024-11-28 03:20:36,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:36,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:20:36,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587115366] [2024-11-28 03:20:36,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587115366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:36,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:36,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052816614] [2024-11-28 03:20:36,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:36,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:36,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:36,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:36,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:36,595 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-28 03:20:36,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:36,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:36,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-28 03:20:36,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:36,819 INFO L124 PetriNetUnfolderBase]: 392/744 cut-off events. [2024-11-28 03:20:36,819 INFO L125 PetriNetUnfolderBase]: For 822/856 co-relation queries the response was YES. [2024-11-28 03:20:36,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2057 conditions, 744 events. 392/744 cut-off events. For 822/856 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4056 event pairs, 93 based on Foata normal form. 36/730 useless extension candidates. Maximal degree in co-relation 1127. Up to 228 conditions per place. [2024-11-28 03:20:36,827 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 39 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2024-11-28 03:20:36,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 57 transitions, 334 flow [2024-11-28 03:20:36,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:20:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:20:36,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-28 03:20:36,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.703125 [2024-11-28 03:20:36,828 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 138 flow. Second operand 4 states and 90 transitions. [2024-11-28 03:20:36,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 57 transitions, 334 flow [2024-11-28 03:20:36,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 57 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:20:36,832 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 164 flow [2024-11-28 03:20:36,833 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2024-11-28 03:20:36,833 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 10 predicate places. [2024-11-28 03:20:36,834 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 164 flow [2024-11-28 03:20:36,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:36,834 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:36,834 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:36,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:20:36,835 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:20:36,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1840485683, now seen corresponding path program 1 times [2024-11-28 03:20:36,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:36,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245309057] [2024-11-28 03:20:36,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:36,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:20:37,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:37,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245309057] [2024-11-28 03:20:37,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245309057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:37,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251489110] [2024-11-28 03:20:37,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:37,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:37,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:37,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:37,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:20:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:37,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:20:37,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:20:37,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:37,455 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:20:37,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251489110] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:37,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:37,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-28 03:20:37,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721310543] [2024-11-28 03:20:37,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:37,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:20:37,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:37,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:20:37,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:20:37,468 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-28 03:20:37,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:37,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:37,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-28 03:20:37,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:38,068 INFO L124 PetriNetUnfolderBase]: 956/1991 cut-off events. [2024-11-28 03:20:38,068 INFO L125 PetriNetUnfolderBase]: For 2324/2431 co-relation queries the response was YES. [2024-11-28 03:20:38,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5714 conditions, 1991 events. 956/1991 cut-off events. For 2324/2431 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 11854 event pairs, 145 based on Foata normal form. 40/1994 useless extension candidates. Maximal degree in co-relation 1526. Up to 658 conditions per place. [2024-11-28 03:20:38,085 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 65 selfloop transitions, 15 changer transitions 1/94 dead transitions. [2024-11-28 03:20:38,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 94 transitions, 602 flow [2024-11-28 03:20:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:20:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:20:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-11-28 03:20:38,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8 [2024-11-28 03:20:38,087 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 164 flow. Second operand 5 states and 128 transitions. [2024-11-28 03:20:38,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 94 transitions, 602 flow [2024-11-28 03:20:38,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 94 transitions, 594 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-28 03:20:38,095 INFO L231 Difference]: Finished difference. Result has 47 places, 49 transitions, 259 flow [2024-11-28 03:20:38,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=259, PETRI_PLACES=47, PETRI_TRANSITIONS=49} [2024-11-28 03:20:38,095 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2024-11-28 03:20:38,095 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 49 transitions, 259 flow [2024-11-28 03:20:38,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:38,096 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:38,096 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:38,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:20:38,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 03:20:38,297 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:20:38,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:38,298 INFO L85 PathProgramCache]: Analyzing trace with hash 899236193, now seen corresponding path program 2 times [2024-11-28 03:20:38,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:38,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637950528] [2024-11-28 03:20:38,298 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:38,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:38,332 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:20:38,332 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:38,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:38,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637950528] [2024-11-28 03:20:38,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637950528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:38,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648571860] [2024-11-28 03:20:38,568 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:38,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:38,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:38,571 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:38,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:20:38,662 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:20:38,662 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:38,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:20:38,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:38,753 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:38,753 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:38,819 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:38,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648571860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:38,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:38,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-28 03:20:38,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097364908] [2024-11-28 03:20:38,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:38,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:20:38,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:38,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:20:38,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:20:38,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-28 03:20:38,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 49 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:38,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:38,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-28 03:20:38,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:39,628 INFO L124 PetriNetUnfolderBase]: 1767/3691 cut-off events. [2024-11-28 03:20:39,628 INFO L125 PetriNetUnfolderBase]: For 5911/6152 co-relation queries the response was YES. [2024-11-28 03:20:39,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11565 conditions, 3691 events. 1767/3691 cut-off events. For 5911/6152 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26053 event pairs, 171 based on Foata normal form. 96/3719 useless extension candidates. Maximal degree in co-relation 3811. Up to 1033 conditions per place. [2024-11-28 03:20:39,661 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 81 selfloop transitions, 31 changer transitions 1/126 dead transitions. [2024-11-28 03:20:39,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 126 transitions, 889 flow [2024-11-28 03:20:39,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:20:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:20:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-28 03:20:39,664 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8125 [2024-11-28 03:20:39,664 INFO L175 Difference]: Start difference. First operand has 47 places, 49 transitions, 259 flow. Second operand 6 states and 156 transitions. [2024-11-28 03:20:39,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 126 transitions, 889 flow [2024-11-28 03:20:39,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 126 transitions, 833 flow, removed 28 selfloop flow, removed 0 redundant places. [2024-11-28 03:20:39,675 INFO L231 Difference]: Finished difference. Result has 53 places, 65 transitions, 386 flow [2024-11-28 03:20:39,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=53, PETRI_TRANSITIONS=65} [2024-11-28 03:20:39,676 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 21 predicate places. [2024-11-28 03:20:39,676 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 65 transitions, 386 flow [2024-11-28 03:20:39,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:39,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:39,677 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:39,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:39,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 03:20:39,877 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:20:39,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:39,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1467040567, now seen corresponding path program 3 times [2024-11-28 03:20:39,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:39,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679303037] [2024-11-28 03:20:39,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:39,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:39,923 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:20:39,927 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:20:40,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:40,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679303037] [2024-11-28 03:20:40,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679303037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:40,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642380981] [2024-11-28 03:20:40,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:40,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:40,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:40,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:40,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:20:40,577 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:20:40,577 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:40,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:20:40,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:41,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:20:41,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:20:41,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642380981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:41,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:20:41,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 13 [2024-11-28 03:20:41,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834157668] [2024-11-28 03:20:41,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:41,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:20:41,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:41,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:20:41,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:20:41,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-11-28 03:20:41,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 65 transitions, 386 flow. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:41,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:41,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-11-28 03:20:41,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:42,789 INFO L124 PetriNetUnfolderBase]: 5619/9622 cut-off events. [2024-11-28 03:20:42,789 INFO L125 PetriNetUnfolderBase]: For 11532/11644 co-relation queries the response was YES. [2024-11-28 03:20:42,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29840 conditions, 9622 events. 5619/9622 cut-off events. For 11532/11644 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 62401 event pairs, 1049 based on Foata normal form. 236/9831 useless extension candidates. Maximal degree in co-relation 12206. Up to 2727 conditions per place. [2024-11-28 03:20:42,866 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 98 selfloop transitions, 37 changer transitions 0/157 dead transitions. [2024-11-28 03:20:42,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 157 transitions, 1122 flow [2024-11-28 03:20:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:20:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:20:42,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2024-11-28 03:20:42,868 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.546875 [2024-11-28 03:20:42,868 INFO L175 Difference]: Start difference. First operand has 53 places, 65 transitions, 386 flow. Second operand 10 states and 175 transitions. [2024-11-28 03:20:42,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 157 transitions, 1122 flow [2024-11-28 03:20:42,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 157 transitions, 1073 flow, removed 17 selfloop flow, removed 1 redundant places. [2024-11-28 03:20:42,882 INFO L231 Difference]: Finished difference. Result has 66 places, 95 transitions, 644 flow [2024-11-28 03:20:42,885 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=644, PETRI_PLACES=66, PETRI_TRANSITIONS=95} [2024-11-28 03:20:42,886 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 34 predicate places. [2024-11-28 03:20:42,886 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 95 transitions, 644 flow [2024-11-28 03:20:42,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:42,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:42,886 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:42,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:43,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:43,087 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:20:43,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1792689825, now seen corresponding path program 4 times [2024-11-28 03:20:43,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:43,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927457687] [2024-11-28 03:20:43,088 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:20:43,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:43,123 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:20:43,125 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:43,275 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:20:43,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:43,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927457687] [2024-11-28 03:20:43,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927457687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:43,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:43,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:20:43,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624569138] [2024-11-28 03:20:43,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:43,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:43,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:43,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:43,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-28 03:20:43,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 95 transitions, 644 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:43,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:43,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-28 03:20:43,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:44,108 INFO L124 PetriNetUnfolderBase]: 2558/5098 cut-off events. [2024-11-28 03:20:44,109 INFO L125 PetriNetUnfolderBase]: For 16616/16667 co-relation queries the response was YES. [2024-11-28 03:20:44,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18855 conditions, 5098 events. 2558/5098 cut-off events. For 16616/16667 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 36786 event pairs, 711 based on Foata normal form. 414/5211 useless extension candidates. Maximal degree in co-relation 15417. Up to 2290 conditions per place. [2024-11-28 03:20:44,162 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 67 selfloop transitions, 11 changer transitions 0/114 dead transitions. [2024-11-28 03:20:44,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 114 transitions, 916 flow [2024-11-28 03:20:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:20:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:20:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-11-28 03:20:44,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6328125 [2024-11-28 03:20:44,164 INFO L175 Difference]: Start difference. First operand has 66 places, 95 transitions, 644 flow. Second operand 4 states and 81 transitions. [2024-11-28 03:20:44,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 114 transitions, 916 flow [2024-11-28 03:20:44,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 114 transitions, 894 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-28 03:20:44,212 INFO L231 Difference]: Finished difference. Result has 69 places, 91 transitions, 637 flow [2024-11-28 03:20:44,212 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=637, PETRI_PLACES=69, PETRI_TRANSITIONS=91} [2024-11-28 03:20:44,213 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 37 predicate places. [2024-11-28 03:20:44,213 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 91 transitions, 637 flow [2024-11-28 03:20:44,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:44,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:44,215 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:44,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:20:44,216 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:20:44,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:44,216 INFO L85 PathProgramCache]: Analyzing trace with hash -179971769, now seen corresponding path program 5 times [2024-11-28 03:20:44,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:44,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147248996] [2024-11-28 03:20:44,216 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:20:44,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:44,251 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-28 03:20:44,251 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:20:45,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:45,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147248996] [2024-11-28 03:20:45,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147248996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:45,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581995776] [2024-11-28 03:20:45,079 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:20:45,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:45,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:45,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:45,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:20:45,181 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-28 03:20:45,181 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:45,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:20:45,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:45,430 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:20:45,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 03:20:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581995776] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:45,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:20:45,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 6] total 13 [2024-11-28 03:20:45,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321524083] [2024-11-28 03:20:45,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:45,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:45,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:45,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:45,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:20:45,742 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-11-28 03:20:45,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 91 transitions, 637 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:45,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:45,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-11-28 03:20:45,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:46,864 INFO L124 PetriNetUnfolderBase]: 2849/6047 cut-off events. [2024-11-28 03:20:46,864 INFO L125 PetriNetUnfolderBase]: For 21930/22125 co-relation queries the response was YES. [2024-11-28 03:20:46,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23546 conditions, 6047 events. 2849/6047 cut-off events. For 21930/22125 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 44902 event pairs, 567 based on Foata normal form. 228/6188 useless extension candidates. Maximal degree in co-relation 19332. Up to 2346 conditions per place. [2024-11-28 03:20:46,938 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 64 selfloop transitions, 23 changer transitions 0/118 dead transitions. [2024-11-28 03:20:46,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 118 transitions, 1030 flow [2024-11-28 03:20:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:20:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:20:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-28 03:20:46,940 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65625 [2024-11-28 03:20:46,940 INFO L175 Difference]: Start difference. First operand has 69 places, 91 transitions, 637 flow. Second operand 4 states and 84 transitions. [2024-11-28 03:20:46,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 118 transitions, 1030 flow [2024-11-28 03:20:47,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 118 transitions, 1001 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 03:20:47,083 INFO L231 Difference]: Finished difference. Result has 71 places, 100 transitions, 772 flow [2024-11-28 03:20:47,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=772, PETRI_PLACES=71, PETRI_TRANSITIONS=100} [2024-11-28 03:20:47,084 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 39 predicate places. [2024-11-28 03:20:47,084 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 100 transitions, 772 flow [2024-11-28 03:20:47,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:20:47,085 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:47,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:47,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:20:47,289 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:20:47,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:47,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1531722225, now seen corresponding path program 6 times [2024-11-28 03:20:47,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:47,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449447866] [2024-11-28 03:20:47,291 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:20:47,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:47,343 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-28 03:20:47,343 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:47,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:20:47,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:47,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449447866] [2024-11-28 03:20:47,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449447866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:47,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:47,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:20:47,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180358379] [2024-11-28 03:20:47,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:47,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:47,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:47,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:47,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:47,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-28 03:20:47,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 100 transitions, 772 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:20:47,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-28 03:20:47,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:20:47,851 INFO L124 PetriNetUnfolderBase]: 685/1606 cut-off events. [2024-11-28 03:20:47,851 INFO L125 PetriNetUnfolderBase]: For 8201/8258 co-relation queries the response was YES. [2024-11-28 03:20:47,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6703 conditions, 1606 events. 685/1606 cut-off events. For 8201/8258 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 9746 event pairs, 214 based on Foata normal form. 97/1662 useless extension candidates. Maximal degree in co-relation 5294. Up to 525 conditions per place. [2024-11-28 03:20:47,859 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2024-11-28 03:20:47,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 90 transitions, 852 flow [2024-11-28 03:20:47,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:20:47,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:20:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-11-28 03:20:47,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6171875 [2024-11-28 03:20:47,861 INFO L175 Difference]: Start difference. First operand has 71 places, 100 transitions, 772 flow. Second operand 4 states and 79 transitions. [2024-11-28 03:20:47,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 90 transitions, 852 flow [2024-11-28 03:20:47,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 90 transitions, 826 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-28 03:20:47,880 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2024-11-28 03:20:47,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2024-11-28 03:20:47,881 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 37 predicate places. [2024-11-28 03:20:47,881 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2024-11-28 03:20:47,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-28 03:20:47,885 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-28 03:20:47,885 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-28 03:20:47,885 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-28 03:20:47,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:20:47,886 INFO L422 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:47,893 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:20:47,893 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:20:47,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:47 BasicIcfg [2024-11-28 03:20:47,903 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:20:47,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:20:47,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:20:47,904 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:20:47,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:33" (3/4) ... [2024-11-28 03:20:47,909 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:20:47,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-28 03:20:47,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-28 03:20:47,918 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-28 03:20:47,918 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-28 03:20:47,918 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 03:20:47,918 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:20:48,018 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:20:48,019 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:20:48,019 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:20:48,020 INFO L158 Benchmark]: Toolchain (without parser) took 15524.21ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 106.5MB in the beginning and 228.2MB in the end (delta: -121.8MB). Peak memory consumption was 368.1MB. Max. memory is 16.1GB. [2024-11-28 03:20:48,021 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:20:48,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.37ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 94.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:20:48,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.10ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 93.7MB in the end (delta: 987.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:20:48,023 INFO L158 Benchmark]: Boogie Preprocessor took 65.57ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 92.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:20:48,024 INFO L158 Benchmark]: RCFGBuilder took 616.34ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 71.3MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:20:48,025 INFO L158 Benchmark]: TraceAbstraction took 14285.22ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 70.7MB in the beginning and 232.5MB in the end (delta: -161.8MB). Peak memory consumption was 334.6MB. Max. memory is 16.1GB. [2024-11-28 03:20:48,025 INFO L158 Benchmark]: Witness Printer took 115.25ms. Allocated memory is still 637.5MB. Free memory was 232.5MB in the beginning and 228.2MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:20:48,030 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.37ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 94.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.10ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 93.7MB in the end (delta: 987.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.57ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 92.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 616.34ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 71.3MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14285.22ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 70.7MB in the beginning and 232.5MB in the end (delta: -161.8MB). Peak memory consumption was 334.6MB. Max. memory is 16.1GB. * Witness Printer took 115.25ms. Allocated memory is still 637.5MB. Free memory was 232.5MB in the beginning and 228.2MB in the end (delta: 4.2MB). 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: 75]: 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, 47 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: 14.1s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 257 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 804 IncrementalHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 18 mSDtfsCounter, 804 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 237 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=772occurred in iteration=11, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 461 NumberOfCodeBlocks, 461 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 540 ConstructedInterpolants, 0 QuantifiedInterpolants, 2347 SizeOfPredicates, 14 NumberOfNonLiveVariables, 525 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 54/105 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! [2024-11-28 03:20:48,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f19e3e-3790-455c-bf2e-5d9a31bd51c8/bin/uautomizer-verify-aQ6SnzHsRB/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