./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl --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 f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:34:19,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:34:19,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:34:19,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:34:19,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:34:19,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:34:19,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:34:19,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:34:19,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:34:19,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:34:19,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:34:19,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:34:19,510 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:34:19,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:34:19,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:34:19,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:34:19,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:34:19,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:34:19,514 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:34:19,514 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:34:19,515 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:34:19,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:34:19,516 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:34:19,517 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:34:19,517 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:34:19,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:34:19,518 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:34:19,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:34:19,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:34:19,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:34:19,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:34:19,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:34:19,522 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:34:19,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:34:19,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:34:19,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:34:19,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:34:19,524 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:34:19,524 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2023-11-12 02:34:19,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:34:19,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:34:19,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:34:19,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:34:19,834 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:34:19,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-12 02:34:22,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:34:23,239 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:34:23,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-12 02:34:23,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/data/8d77b425a/ff0ed9d55e35416b99da02f432189b30/FLAG78921e9ef [2023-11-12 02:34:23,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/data/8d77b425a/ff0ed9d55e35416b99da02f432189b30 [2023-11-12 02:34:23,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:34:23,286 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:34:23,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:34:23,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:34:23,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:34:23,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:23,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3b7ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23, skipping insertion in model container [2023-11-12 02:34:23,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:23,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:34:23,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:34:23,853 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:34:23,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:34:23,972 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:34:23,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23 WrapperNode [2023-11-12 02:34:23,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:34:23,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:34:23,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:34:23,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:34:23,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,047 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-11-12 02:34:24,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:34:24,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:34:24,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:34:24,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:34:24,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:34:24,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:34:24,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:34:24,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:34:24,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:24,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:34:24,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:34:24,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:34:24,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:34:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:34:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:34:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:34:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:34:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:34:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:34:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:34:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:34:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:34:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:34:24,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:34:24,153 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:34:24,285 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:34:24,287 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:34:24,540 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:34:24,548 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:34:24,549 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:34:24,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:24 BoogieIcfgContainer [2023-11-12 02:34:24,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:34:24,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:34:24,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:34:24,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:34:24,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:34:23" (1/3) ... [2023-11-12 02:34:24,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f52d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:34:24, skipping insertion in model container [2023-11-12 02:34:24,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23" (2/3) ... [2023-11-12 02:34:24,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f52d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:34:24, skipping insertion in model container [2023-11-12 02:34:24,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:24" (3/3) ... [2023-11-12 02:34:24,562 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-12 02:34:24,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:34:24,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:34:24,580 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:34:24,671 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 02:34:24,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 167 flow [2023-11-12 02:34:24,778 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2023-11-12 02:34:24,780 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:34:24,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 2/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-12 02:34:24,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 167 flow [2023-11-12 02:34:24,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 74 transitions, 154 flow [2023-11-12 02:34:24,799 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:34:24,811 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 74 transitions, 154 flow [2023-11-12 02:34:24,814 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 74 transitions, 154 flow [2023-11-12 02:34:24,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 154 flow [2023-11-12 02:34:24,854 INFO L124 PetriNetUnfolderBase]: 2/74 cut-off events. [2023-11-12 02:34:24,854 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:34:24,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 2/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-12 02:34:24,857 INFO L119 LiptonReduction]: Number of co-enabled transitions 644 [2023-11-12 02:34:28,133 INFO L134 LiptonReduction]: Checked pairs total: 2216 [2023-11-12 02:34:28,134 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-11-12 02:34:28,152 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:34:28,160 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6b7328b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:34:28,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-12 02:34:28,162 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:34:28,163 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-12 02:34:28,163 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:34:28,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:28,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:34:28,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:28,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:28,171 INFO L85 PathProgramCache]: Analyzing trace with hash 285, now seen corresponding path program 1 times [2023-11-12 02:34:28,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:28,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354119830] [2023-11-12 02:34:28,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:28,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:28,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354119830] [2023-11-12 02:34:28,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354119830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:28,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:28,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:34:28,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567978699] [2023-11-12 02:34:28,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:28,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:34:28,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:28,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:34:28,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:34:28,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 149 [2023-11-12 02:34:28,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 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) [2023-11-12 02:34:28,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:28,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 149 [2023-11-12 02:34:28,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:28,481 INFO L124 PetriNetUnfolderBase]: 20/88 cut-off events. [2023-11-12 02:34:28,482 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:34:28,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 88 events. 20/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 305 event pairs, 20 based on Foata normal form. 5/71 useless extension candidates. Maximal degree in co-relation 133. Up to 54 conditions per place. [2023-11-12 02:34:28,486 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 12 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-11-12 02:34:28,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 72 flow [2023-11-12 02:34:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:34:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:34:28,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 167 transitions. [2023-11-12 02:34:28,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5604026845637584 [2023-11-12 02:34:28,505 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 167 transitions. [2023-11-12 02:34:28,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 167 transitions. [2023-11-12 02:34:28,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:28,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 167 transitions. [2023-11-12 02:34:28,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2023-11-12 02:34:28,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2023-11-12 02:34:28,528 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2023-11-12 02:34:28,530 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 56 flow. Second operand 2 states and 167 transitions. [2023-11-12 02:34:28,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 72 flow [2023-11-12 02:34:28,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:28,535 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 40 flow [2023-11-12 02:34:28,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-11-12 02:34:28,542 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2023-11-12 02:34:28,543 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 40 flow [2023-11-12 02:34:28,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 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) [2023-11-12 02:34:28,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:28,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:34:28,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:34:28,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:28,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:28,548 INFO L85 PathProgramCache]: Analyzing trace with hash 8644747, now seen corresponding path program 1 times [2023-11-12 02:34:28,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:28,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403921386] [2023-11-12 02:34:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:28,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:28,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:28,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403921386] [2023-11-12 02:34:28,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403921386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:28,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:28,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:34:28,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48553724] [2023-11-12 02:34:28,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:28,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:34:28,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:28,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:28,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:28,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 149 [2023-11-12 02:34:28,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-11-12 02:34:28,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:28,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 149 [2023-11-12 02:34:28,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:28,972 INFO L124 PetriNetUnfolderBase]: 19/72 cut-off events. [2023-11-12 02:34:28,972 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:34:28,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 72 events. 19/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 208 event pairs, 13 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 127. Up to 37 conditions per place. [2023-11-12 02:34:28,975 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 14 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-11-12 02:34:28,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 80 flow [2023-11-12 02:34:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:34:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2023-11-12 02:34:28,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5234899328859061 [2023-11-12 02:34:28,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2023-11-12 02:34:28,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2023-11-12 02:34:28,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:28,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2023-11-12 02:34:28,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2023-11-12 02:34:28,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-11-12 02:34:28,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-11-12 02:34:28,993 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 40 flow. Second operand 3 states and 234 transitions. [2023-11-12 02:34:28,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 80 flow [2023-11-12 02:34:28,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:34:28,995 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 51 flow [2023-11-12 02:34:28,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-11-12 02:34:28,997 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2023-11-12 02:34:28,998 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 51 flow [2023-11-12 02:34:29,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-11-12 02:34:29,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:29,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:34:29,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:34:29,003 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:29,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:29,008 INFO L85 PathProgramCache]: Analyzing trace with hash -282338934, now seen corresponding path program 1 times [2023-11-12 02:34:29,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:29,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819062961] [2023-11-12 02:34:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:29,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:29,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:29,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819062961] [2023-11-12 02:34:29,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819062961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:29,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:29,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:34:29,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247212648] [2023-11-12 02:34:29,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:29,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:34:29,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:29,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:29,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:29,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-11-12 02:34:29,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-11-12 02:34:29,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:29,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-11-12 02:34:29,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:29,228 INFO L124 PetriNetUnfolderBase]: 17/67 cut-off events. [2023-11-12 02:34:29,228 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:34:29,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 67 events. 17/67 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 194 event pairs, 17 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 129. Up to 47 conditions per place. [2023-11-12 02:34:29,230 INFO L140 encePairwiseOnDemand]: 146/149 looper letters, 11 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-11-12 02:34:29,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 75 flow [2023-11-12 02:34:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:29,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:34:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2023-11-12 02:34:29,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742729306487696 [2023-11-12 02:34:29,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 212 transitions. [2023-11-12 02:34:29,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 212 transitions. [2023-11-12 02:34:29,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:29,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 212 transitions. [2023-11-12 02:34:29,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2023-11-12 02:34:29,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-11-12 02:34:29,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-11-12 02:34:29,240 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 51 flow. Second operand 3 states and 212 transitions. [2023-11-12 02:34:29,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 75 flow [2023-11-12 02:34:29,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 69 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:29,242 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 47 flow [2023-11-12 02:34:29,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-11-12 02:34:29,244 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-11-12 02:34:29,248 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 47 flow [2023-11-12 02:34:29,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-11-12 02:34:29,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:29,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:34:29,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:34:29,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:29,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:29,250 INFO L85 PathProgramCache]: Analyzing trace with hash -282338933, now seen corresponding path program 1 times [2023-11-12 02:34:29,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:29,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144887001] [2023-11-12 02:34:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:29,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:29,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:29,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144887001] [2023-11-12 02:34:29,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144887001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:29,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:29,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:34:29,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096445213] [2023-11-12 02:34:29,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:29,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:34:29,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:29,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:29,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:29,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 149 [2023-11-12 02:34:29,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2023-11-12 02:34:29,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:29,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 149 [2023-11-12 02:34:29,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:29,453 INFO L124 PetriNetUnfolderBase]: 13/58 cut-off events. [2023-11-12 02:34:29,453 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:34:29,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 58 events. 13/58 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 13 based on Foata normal form. 5/61 useless extension candidates. Maximal degree in co-relation 105. Up to 38 conditions per place. [2023-11-12 02:34:29,455 INFO L140 encePairwiseOnDemand]: 146/149 looper letters, 10 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-11-12 02:34:29,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 69 flow [2023-11-12 02:34:29,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:29,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:34:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2023-11-12 02:34:29,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49217002237136465 [2023-11-12 02:34:29,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 220 transitions. [2023-11-12 02:34:29,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 220 transitions. [2023-11-12 02:34:29,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:29,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 220 transitions. [2023-11-12 02:34:29,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-11-12 02:34:29,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-11-12 02:34:29,460 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-11-12 02:34:29,461 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 47 flow. Second operand 3 states and 220 transitions. [2023-11-12 02:34:29,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 69 flow [2023-11-12 02:34:29,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 65 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:29,462 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 45 flow [2023-11-12 02:34:29,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-11-12 02:34:29,463 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2023-11-12 02:34:29,464 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 45 flow [2023-11-12 02:34:29,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2023-11-12 02:34:29,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:29,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:29,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:34:29,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:29,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash -163444801, now seen corresponding path program 1 times [2023-11-12 02:34:29,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:29,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199996257] [2023-11-12 02:34:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:29,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:29,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:29,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199996257] [2023-11-12 02:34:29,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199996257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:29,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:29,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:34:29,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934040855] [2023-11-12 02:34:29,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:29,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:29,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:29,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:29,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:29,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-11-12 02:34:29,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 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) [2023-11-12 02:34:29,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:29,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-11-12 02:34:29,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:29,739 INFO L124 PetriNetUnfolderBase]: 8/41 cut-off events. [2023-11-12 02:34:29,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:34:29,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 41 events. 8/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 4 based on Foata normal form. 7/48 useless extension candidates. Maximal degree in co-relation 83. Up to 19 conditions per place. [2023-11-12 02:34:29,740 INFO L140 encePairwiseOnDemand]: 142/149 looper letters, 9 selfloop transitions, 7 changer transitions 0/19 dead transitions. [2023-11-12 02:34:29,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 81 flow [2023-11-12 02:34:29,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:34:29,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:34:29,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2023-11-12 02:34:29,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748322147651007 [2023-11-12 02:34:29,745 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 283 transitions. [2023-11-12 02:34:29,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 283 transitions. [2023-11-12 02:34:29,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:29,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 283 transitions. [2023-11-12 02:34:29,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 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) [2023-11-12 02:34:29,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 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) [2023-11-12 02:34:29,749 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 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) [2023-11-12 02:34:29,749 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 45 flow. Second operand 4 states and 283 transitions. [2023-11-12 02:34:29,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 81 flow [2023-11-12 02:34:29,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 77 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:29,751 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 55 flow [2023-11-12 02:34:29,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=55, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2023-11-12 02:34:29,752 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-11-12 02:34:29,753 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 55 flow [2023-11-12 02:34:29,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 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) [2023-11-12 02:34:29,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:29,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:29,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:34:29,754 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:29,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1556307200, now seen corresponding path program 1 times [2023-11-12 02:34:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:29,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194043562] [2023-11-12 02:34:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:29,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:29,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:29,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:29,846 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:34:29,848 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-12 02:34:29,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-12 02:34:29,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-12 02:34:29,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-12 02:34:29,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-12 02:34:29,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-12 02:34:29,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-12 02:34:29,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:34:29,859 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 02:34:29,866 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:34:29,866 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:34:29,892 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-12 02:34:29,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:34:29 BasicIcfg [2023-11-12 02:34:29,901 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:34:29,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:34:29,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:34:29,903 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:34:29,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:24" (3/4) ... [2023-11-12 02:34:29,905 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:34:29,906 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:34:29,907 INFO L158 Benchmark]: Toolchain (without parser) took 6621.42ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 115.5MB in the beginning and 62.7MB in the end (delta: 52.8MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. [2023-11-12 02:34:29,908 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:34:29,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 685.78ms. Allocated memory is still 148.9MB. Free memory was 115.0MB in the beginning and 96.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:34:29,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.71ms. Allocated memory is still 148.9MB. Free memory was 96.1MB in the beginning and 94.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:34:29,914 INFO L158 Benchmark]: Boogie Preprocessor took 29.34ms. Allocated memory is still 148.9MB. Free memory was 94.1MB in the beginning and 92.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:34:29,914 INFO L158 Benchmark]: RCFGBuilder took 473.25ms. Allocated memory is still 148.9MB. Free memory was 92.5MB in the beginning and 79.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:34:29,915 INFO L158 Benchmark]: TraceAbstraction took 5347.20ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 78.7MB in the beginning and 63.7MB in the end (delta: 14.9MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2023-11-12 02:34:29,915 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 192.9MB. Free memory was 63.7MB in the beginning and 62.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:34:29,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 685.78ms. Allocated memory is still 148.9MB. Free memory was 115.0MB in the beginning and 96.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.71ms. Allocated memory is still 148.9MB. Free memory was 96.1MB in the beginning and 94.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.34ms. Allocated memory is still 148.9MB. Free memory was 94.1MB in the beginning and 92.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 473.25ms. Allocated memory is still 148.9MB. Free memory was 92.5MB in the beginning and 79.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5347.20ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 78.7MB in the beginning and 63.7MB in the end (delta: 14.9MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 192.9MB. Free memory was 63.7MB in the beginning and 62.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 76 PlacesBefore, 27 PlacesAfterwards, 74 TransitionsBefore, 25 TransitionsAfterwards, 644 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 2216 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1014, independent: 860, independent conditional: 0, independent unconditional: 860, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 389, independent: 358, independent conditional: 0, independent unconditional: 358, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1014, independent: 502, independent conditional: 0, independent unconditional: 502, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 389, unknown conditional: 0, unknown unconditional: 389] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "13-privatized_19-publish-precision_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 2 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:34:29,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl --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 f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:34:32,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:34:32,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:34:32,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:34:32,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:34:32,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:34:32,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:34:32,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:34:32,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:34:32,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:34:32,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:34:32,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:34:32,826 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:34:32,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:34:32,828 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:34:32,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:34:32,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:34:32,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:34:32,830 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:34:32,831 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:34:32,832 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:34:32,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:34:32,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:34:32,834 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:34:32,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:34:32,835 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:34:32,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:34:32,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:34:32,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:34:32,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:34:32,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:34:32,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:34:32,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:34:32,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:34:32,840 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:34:32,841 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:34:32,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:34:32,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:34:32,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:34:32,843 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:34:32,843 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:34:32,844 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2023-11-12 02:34:33,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:34:33,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:34:33,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:34:33,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:34:33,329 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:34:33,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-12 02:34:36,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:34:36,831 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:34:36,832 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-12 02:34:36,852 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/data/b040de4d4/c6edc62ea637476b970d2ef448f5188a/FLAG1ddc94e05 [2023-11-12 02:34:36,874 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/data/b040de4d4/c6edc62ea637476b970d2ef448f5188a [2023-11-12 02:34:36,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:34:36,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:34:36,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:34:36,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:34:36,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:34:36,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:34:36" (1/1) ... [2023-11-12 02:34:36,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0068d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:36, skipping insertion in model container [2023-11-12 02:34:36,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:34:36" (1/1) ... [2023-11-12 02:34:36,939 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:34:37,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:34:37,367 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:34:37,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:34:37,508 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:34:37,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37 WrapperNode [2023-11-12 02:34:37,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:34:37,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:34:37,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:34:37,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:34:37,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,599 INFO L138 Inliner]: procedures = 166, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-11-12 02:34:37,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:34:37,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:34:37,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:34:37,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:34:37,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:34:37,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:34:37,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:34:37,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:34:37,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (1/1) ... [2023-11-12 02:34:37,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:34:37,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:34:37,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:34:37,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:34:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:34:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:34:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:34:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:34:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:34:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:34:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:34:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:34:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:34:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 02:34:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:34:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:34:37,784 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:34:37,979 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:34:37,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:34:38,198 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:34:38,206 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:34:38,207 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:34:38,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:38 BoogieIcfgContainer [2023-11-12 02:34:38,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:34:38,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:34:38,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:34:38,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:34:38,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:34:36" (1/3) ... [2023-11-12 02:34:38,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee63baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:34:38, skipping insertion in model container [2023-11-12 02:34:38,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:37" (2/3) ... [2023-11-12 02:34:38,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee63baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:34:38, skipping insertion in model container [2023-11-12 02:34:38,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:38" (3/3) ... [2023-11-12 02:34:38,220 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-12 02:34:38,242 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:34:38,242 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:34:38,242 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:34:38,320 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 02:34:38,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 169 flow [2023-11-12 02:34:38,446 INFO L124 PetriNetUnfolderBase]: 2/80 cut-off events. [2023-11-12 02:34:38,446 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:34:38,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 2/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-12 02:34:38,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 169 flow [2023-11-12 02:34:38,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 75 transitions, 156 flow [2023-11-12 02:34:38,465 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:34:38,486 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 75 transitions, 156 flow [2023-11-12 02:34:38,491 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 75 transitions, 156 flow [2023-11-12 02:34:38,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 156 flow [2023-11-12 02:34:38,539 INFO L124 PetriNetUnfolderBase]: 2/75 cut-off events. [2023-11-12 02:34:38,539 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:34:38,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 75 events. 2/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-12 02:34:38,543 INFO L119 LiptonReduction]: Number of co-enabled transitions 644 [2023-11-12 02:34:44,847 INFO L134 LiptonReduction]: Checked pairs total: 1923 [2023-11-12 02:34:44,849 INFO L136 LiptonReduction]: Total number of compositions: 65 [2023-11-12 02:34:44,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:34:44,883 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@307853cf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:34:44,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-12 02:34:44,885 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:34:44,886 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:34:44,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:34:44,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:44,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:34:44,887 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:44,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash 283, now seen corresponding path program 1 times [2023-11-12 02:34:44,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:34:44,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738001709] [2023-11-12 02:34:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:44,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:44,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:34:44,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:34:44,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 02:34:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:44,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:34:44,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:44,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:34:44,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:34:44,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738001709] [2023-11-12 02:34:44,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738001709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:44,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:44,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:34:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210389770] [2023-11-12 02:34:44,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:45,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:34:45,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:34:45,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:34:45,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:34:45,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 146 [2023-11-12 02:34:45,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 52 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-11-12 02:34:45,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:45,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 146 [2023-11-12 02:34:45,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:45,097 INFO L124 PetriNetUnfolderBase]: 20/88 cut-off events. [2023-11-12 02:34:45,098 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:34:45,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 88 events. 20/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 303 event pairs, 20 based on Foata normal form. 5/71 useless extension candidates. Maximal degree in co-relation 133. Up to 54 conditions per place. [2023-11-12 02:34:45,100 INFO L140 encePairwiseOnDemand]: 143/146 looper letters, 12 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-11-12 02:34:45,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 72 flow [2023-11-12 02:34:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:34:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:34:45,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 168 transitions. [2023-11-12 02:34:45,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5753424657534246 [2023-11-12 02:34:45,129 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 168 transitions. [2023-11-12 02:34:45,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 168 transitions. [2023-11-12 02:34:45,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:45,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 168 transitions. [2023-11-12 02:34:45,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 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) [2023-11-12 02:34:45,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2023-11-12 02:34:45,151 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2023-11-12 02:34:45,153 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 168 transitions. [2023-11-12 02:34:45,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 72 flow [2023-11-12 02:34:45,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:45,157 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 40 flow [2023-11-12 02:34:45,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-11-12 02:34:45,163 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-11-12 02:34:45,163 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 40 flow [2023-11-12 02:34:45,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-11-12 02:34:45,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:45,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:34:45,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:45,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:45,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:45,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:45,377 INFO L85 PathProgramCache]: Analyzing trace with hash 8587248, now seen corresponding path program 1 times [2023-11-12 02:34:45,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:34:45,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98696173] [2023-11-12 02:34:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:45,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:45,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:34:45,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:34:45,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 02:34:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:45,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:34:45,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:45,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:34:45,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:34:45,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98696173] [2023-11-12 02:34:45,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98696173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:45,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:45,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:34:45,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741185131] [2023-11-12 02:34:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:45,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:34:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:34:45,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:45,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:45,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 146 [2023-11-12 02:34:45,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2023-11-12 02:34:45,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:45,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 146 [2023-11-12 02:34:45,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:45,565 INFO L124 PetriNetUnfolderBase]: 19/72 cut-off events. [2023-11-12 02:34:45,566 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:34:45,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 72 events. 19/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 206 event pairs, 13 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 127. Up to 37 conditions per place. [2023-11-12 02:34:45,569 INFO L140 encePairwiseOnDemand]: 142/146 looper letters, 14 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-11-12 02:34:45,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 80 flow [2023-11-12 02:34:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:34:45,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2023-11-12 02:34:45,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.541095890410959 [2023-11-12 02:34:45,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2023-11-12 02:34:45,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2023-11-12 02:34:45,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:45,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2023-11-12 02:34:45,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2023-11-12 02:34:45,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2023-11-12 02:34:45,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2023-11-12 02:34:45,582 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 40 flow. Second operand 3 states and 237 transitions. [2023-11-12 02:34:45,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 80 flow [2023-11-12 02:34:45,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:34:45,584 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 51 flow [2023-11-12 02:34:45,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-11-12 02:34:45,585 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2023-11-12 02:34:45,586 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 51 flow [2023-11-12 02:34:45,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2023-11-12 02:34:45,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:45,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:34:45,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:45,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:45,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:45,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:45,799 INFO L85 PathProgramCache]: Analyzing trace with hash -337624022, now seen corresponding path program 1 times [2023-11-12 02:34:45,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:34:45,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412668478] [2023-11-12 02:34:45,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:45,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:45,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:34:45,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:34:45,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 02:34:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:45,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:34:45,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:45,963 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-12 02:34:45,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:45,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:34:45,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:34:45,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412668478] [2023-11-12 02:34:45,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412668478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:45,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:45,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:34:45,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809196773] [2023-11-12 02:34:45,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:45,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:34:45,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:34:45,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:45,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:46,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 146 [2023-11-12 02:34:46,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-11-12 02:34:46,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:46,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 146 [2023-11-12 02:34:46,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:46,111 INFO L124 PetriNetUnfolderBase]: 17/67 cut-off events. [2023-11-12 02:34:46,112 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:34:46,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 67 events. 17/67 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 194 event pairs, 17 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 129. Up to 47 conditions per place. [2023-11-12 02:34:46,113 INFO L140 encePairwiseOnDemand]: 143/146 looper letters, 11 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-11-12 02:34:46,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 75 flow [2023-11-12 02:34:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:34:46,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2023-11-12 02:34:46,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4908675799086758 [2023-11-12 02:34:46,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2023-11-12 02:34:46,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2023-11-12 02:34:46,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:46,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2023-11-12 02:34:46,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2023-11-12 02:34:46,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2023-11-12 02:34:46,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2023-11-12 02:34:46,122 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 51 flow. Second operand 3 states and 215 transitions. [2023-11-12 02:34:46,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 75 flow [2023-11-12 02:34:46,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 69 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:46,124 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 47 flow [2023-11-12 02:34:46,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-11-12 02:34:46,125 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-11-12 02:34:46,126 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 47 flow [2023-11-12 02:34:46,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-11-12 02:34:46,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:46,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:34:46,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:46,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:46,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:46,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash -337624021, now seen corresponding path program 1 times [2023-11-12 02:34:46,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:34:46,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829791242] [2023-11-12 02:34:46,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:46,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:46,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:34:46,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:34:46,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 02:34:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:46,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:34:46,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:46,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:34:46,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:34:46,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829791242] [2023-11-12 02:34:46,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829791242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:46,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:46,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:34:46,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801344282] [2023-11-12 02:34:46,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:46,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:34:46,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:34:46,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:46,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:46,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 146 [2023-11-12 02:34:46,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-11-12 02:34:46,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:46,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 146 [2023-11-12 02:34:46,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:46,696 INFO L124 PetriNetUnfolderBase]: 17/62 cut-off events. [2023-11-12 02:34:46,696 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:34:46,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 62 events. 17/62 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 165 event pairs, 17 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 118. Up to 47 conditions per place. [2023-11-12 02:34:46,697 INFO L140 encePairwiseOnDemand]: 143/146 looper letters, 11 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-11-12 02:34:46,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 71 flow [2023-11-12 02:34:46,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:34:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2023-11-12 02:34:46,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4977168949771689 [2023-11-12 02:34:46,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2023-11-12 02:34:46,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2023-11-12 02:34:46,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:46,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2023-11-12 02:34:46,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-11-12 02:34:46,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2023-11-12 02:34:46,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2023-11-12 02:34:46,705 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 47 flow. Second operand 3 states and 218 transitions. [2023-11-12 02:34:46,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 71 flow [2023-11-12 02:34:46,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 67 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:46,706 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 45 flow [2023-11-12 02:34:46,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-11-12 02:34:46,707 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-11-12 02:34:46,707 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 45 flow [2023-11-12 02:34:46,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-11-12 02:34:46,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:46,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:46,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:46,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:46,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:46,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:46,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1876514684, now seen corresponding path program 1 times [2023-11-12 02:34:46,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:34:46,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050858803] [2023-11-12 02:34:46,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:46,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:46,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:34:46,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:34:46,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-12 02:34:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:47,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:34:47,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:47,070 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-12 02:34:47,131 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-12 02:34:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:47,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:34:47,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:34:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050858803] [2023-11-12 02:34:47,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050858803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:47,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:47,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:34:47,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050994170] [2023-11-12 02:34:47,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:47,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:47,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:34:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:47,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:47,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 146 [2023-11-12 02:34:47,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 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) [2023-11-12 02:34:47,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:47,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 146 [2023-11-12 02:34:47,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:47,368 INFO L124 PetriNetUnfolderBase]: 8/41 cut-off events. [2023-11-12 02:34:47,369 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:34:47,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 41 events. 8/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 4 based on Foata normal form. 7/48 useless extension candidates. Maximal degree in co-relation 83. Up to 19 conditions per place. [2023-11-12 02:34:47,371 INFO L140 encePairwiseOnDemand]: 139/146 looper letters, 9 selfloop transitions, 7 changer transitions 0/19 dead transitions. [2023-11-12 02:34:47,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 81 flow [2023-11-12 02:34:47,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:34:47,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:34:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2023-11-12 02:34:47,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4914383561643836 [2023-11-12 02:34:47,375 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 287 transitions. [2023-11-12 02:34:47,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 287 transitions. [2023-11-12 02:34:47,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:47,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 287 transitions. [2023-11-12 02:34:47,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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) [2023-11-12 02:34:47,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 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) [2023-11-12 02:34:47,382 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 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) [2023-11-12 02:34:47,382 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 45 flow. Second operand 4 states and 287 transitions. [2023-11-12 02:34:47,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 81 flow [2023-11-12 02:34:47,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 77 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:34:47,384 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 55 flow [2023-11-12 02:34:47,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=55, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2023-11-12 02:34:47,387 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-11-12 02:34:47,387 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 55 flow [2023-11-12 02:34:47,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 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) [2023-11-12 02:34:47,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:47,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:47,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:47,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:47,592 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-12 02:34:47,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:47,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1087213797, now seen corresponding path program 1 times [2023-11-12 02:34:47,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:34:47,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348516369] [2023-11-12 02:34:47,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:47,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:47,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:34:47,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:34:47,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-12 02:34:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:47,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:47,768 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-12 02:34:47,769 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:34:47,770 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-12 02:34:47,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-12 02:34:47,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-12 02:34:47,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-12 02:34:47,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-12 02:34:47,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-12 02:34:47,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-12 02:34:47,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:47,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:34:47,974 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 02:34:47,979 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:34:47,979 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:34:47,996 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-12 02:34:48,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:34:48 BasicIcfg [2023-11-12 02:34:48,003 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:34:48,004 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:34:48,004 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:34:48,004 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:34:48,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:38" (3/4) ... [2023-11-12 02:34:48,008 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:34:48,009 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:34:48,012 INFO L158 Benchmark]: Toolchain (without parser) took 11131.59ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 81.6MB in the beginning and 58.6MB in the end (delta: 23.0MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2023-11-12 02:34:48,012 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 69.2MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:34:48,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.41ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 61.3MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:34:48,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.81ms. Allocated memory is still 107.0MB. Free memory was 61.3MB in the beginning and 59.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:34:48,014 INFO L158 Benchmark]: Boogie Preprocessor took 83.91ms. Allocated memory is still 107.0MB. Free memory was 59.2MB in the beginning and 84.9MB in the end (delta: -25.7MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2023-11-12 02:34:48,014 INFO L158 Benchmark]: RCFGBuilder took 523.95ms. Allocated memory is still 107.0MB. Free memory was 84.9MB in the beginning and 69.6MB in the end (delta: 15.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:34:48,015 INFO L158 Benchmark]: TraceAbstraction took 9791.11ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 69.3MB in the beginning and 58.6MB in the end (delta: 10.7MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2023-11-12 02:34:48,015 INFO L158 Benchmark]: Witness Printer took 5.70ms. Allocated memory is still 130.0MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:34:48,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 69.2MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.41ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 61.3MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.81ms. Allocated memory is still 107.0MB. Free memory was 61.3MB in the beginning and 59.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.91ms. Allocated memory is still 107.0MB. Free memory was 59.2MB in the beginning and 84.9MB in the end (delta: -25.7MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * RCFGBuilder took 523.95ms. Allocated memory is still 107.0MB. Free memory was 84.9MB in the beginning and 69.6MB in the end (delta: 15.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9791.11ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 69.3MB in the beginning and 58.6MB in the end (delta: 10.7MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 5.70ms. Allocated memory is still 130.0MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 77 PlacesBefore, 26 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 644 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 65 TotalNumberOfCompositions, 1923 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 829, independent: 690, independent conditional: 0, independent unconditional: 690, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 357, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 829, independent: 363, independent conditional: 0, independent unconditional: 363, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 357, unknown conditional: 0, unknown unconditional: 357] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "13-privatized_19-publish-precision_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 193 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 39 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 1 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:34:48,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c8c600-5b90-455c-a074-c2c02b606923/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample