./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_03-priv_inv.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_03-priv_inv.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 f20707f1105ba10067156ebf4074b2c6b4682bff1e09b23f43a3f8b7604511aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:53:37,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:53:37,364 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 21:53:37,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:53:37,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:53:37,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:53:37,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:53:37,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:53:37,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:53:37,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:53:37,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:53:37,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:53:37,404 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:53:37,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:53:37,405 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:53:37,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:53:37,407 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:53:37,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:53:37,408 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:53:37,408 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:53:37,409 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:53:37,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:53:37,410 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:53:37,410 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:53:37,411 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:53:37,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:53:37,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:53:37,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:53:37,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:53:37,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:37,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:53:37,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:53:37,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:53:37,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:53:37,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:53:37,415 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:53:37,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:53:37,416 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:53:37,416 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_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f20707f1105ba10067156ebf4074b2c6b4682bff1e09b23f43a3f8b7604511aa [2023-11-06 21:53:37,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:53:37,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:53:37,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:53:37,686 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:53:37,687 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:53:37,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/13-privatized_03-priv_inv.i [2023-11-06 21:53:41,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:53:41,318 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:53:41,320 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/sv-benchmarks/c/goblint-regression/13-privatized_03-priv_inv.i [2023-11-06 21:53:41,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/data/edcbd22f5/11745eccd13f402a8ffc1e1975c1f391/FLAG5cb1cdac3 [2023-11-06 21:53:41,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/data/edcbd22f5/11745eccd13f402a8ffc1e1975c1f391 [2023-11-06 21:53:41,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:53:41,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:53:41,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:41,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:53:41,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:53:41,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7977575b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41, skipping insertion in model container [2023-11-06 21:53:41,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,437 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:53:41,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:41,892 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:53:41,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:42,016 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:53:42,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42 WrapperNode [2023-11-06 21:53:42,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:42,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:42,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:53:42,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:53:42,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,076 INFO L138 Inliner]: procedures = 165, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2023-11-06 21:53:42,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:42,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:53:42,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:53:42,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:53:42,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:53:42,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:53:42,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:53:42,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:53:42,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (1/1) ... [2023-11-06 21:53:42,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:42,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:42,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:53:42,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:53:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:53:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:53:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 21:53:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:53:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:53:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 21:53:42,204 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 21:53:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:53:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:53:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:53:42,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:53:42,207 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:53:42,396 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:53:42,413 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:53:42,692 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:53:42,704 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:53:42,708 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:53:42,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:42 BoogieIcfgContainer [2023-11-06 21:53:42,713 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:53:42,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:53:42,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:53:42,720 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:53:42,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:53:41" (1/3) ... [2023-11-06 21:53:42,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edfa83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:42, skipping insertion in model container [2023-11-06 21:53:42,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:42" (2/3) ... [2023-11-06 21:53:42,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edfa83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:42, skipping insertion in model container [2023-11-06 21:53:42,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:42" (3/3) ... [2023-11-06 21:53:42,723 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_03-priv_inv.i [2023-11-06 21:53:42,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:53:42,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-06 21:53:42,740 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:53:42,803 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 21:53:42,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 91 transitions, 189 flow [2023-11-06 21:53:42,916 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-11-06 21:53:42,917 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 21:53:42,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 3/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-11-06 21:53:42,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 91 transitions, 189 flow [2023-11-06 21:53:42,928 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 85 transitions, 176 flow [2023-11-06 21:53:42,932 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:53:42,957 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 85 transitions, 176 flow [2023-11-06 21:53:42,960 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 85 transitions, 176 flow [2023-11-06 21:53:42,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 85 transitions, 176 flow [2023-11-06 21:53:43,020 INFO L124 PetriNetUnfolderBase]: 3/85 cut-off events. [2023-11-06 21:53:43,020 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 21:53:43,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 85 events. 3/85 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-11-06 21:53:43,024 INFO L119 LiptonReduction]: Number of co-enabled transitions 330 [2023-11-06 21:53:48,972 INFO L134 LiptonReduction]: Checked pairs total: 1995 [2023-11-06 21:53:48,973 INFO L136 LiptonReduction]: Total number of compositions: 82 [2023-11-06 21:53:48,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:53:48,996 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;@61956b5e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:53:48,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 21:53:48,998 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:53:48,999 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:53:48,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:53:48,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:49,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:53:49,001 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 21:53:49,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:49,006 INFO L85 PathProgramCache]: Analyzing trace with hash 313, now seen corresponding path program 1 times [2023-11-06 21:53:49,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:49,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174602878] [2023-11-06 21:53:49,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:49,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:49,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:49,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174602878] [2023-11-06 21:53:49,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174602878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:49,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:49,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:53:49,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526740655] [2023-11-06 21:53:49,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:49,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:53:49,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:49,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:53:49,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:53:49,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 173 [2023-11-06 21:53:49,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 52 flow. Second operand has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 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) [2023-11-06 21:53:49,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:49,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 173 [2023-11-06 21:53:49,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:49,232 INFO L124 PetriNetUnfolderBase]: 31/79 cut-off events. [2023-11-06 21:53:49,232 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 21:53:49,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 79 events. 31/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 232 event pairs, 24 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 140. Up to 70 conditions per place. [2023-11-06 21:53:49,235 INFO L140 encePairwiseOnDemand]: 169/173 looper letters, 15 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-11-06 21:53:49,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 72 flow [2023-11-06 21:53:49,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:53:49,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:53:49,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2023-11-06 21:53:49,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5578034682080925 [2023-11-06 21:53:49,251 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2023-11-06 21:53:49,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2023-11-06 21:53:49,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:49,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2023-11-06 21:53:49,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 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) [2023-11-06 21:53:49,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2023-11-06 21:53:49,266 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2023-11-06 21:53:49,269 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 52 flow. Second operand 2 states and 193 transitions. [2023-11-06 21:53:49,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 72 flow [2023-11-06 21:53:49,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:53:49,273 INFO L231 Difference]: Finished difference. Result has 20 places, 18 transitions, 38 flow [2023-11-06 21:53:49,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=20, PETRI_TRANSITIONS=18} [2023-11-06 21:53:49,279 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -5 predicate places. [2023-11-06 21:53:49,282 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 18 transitions, 38 flow [2023-11-06 21:53:49,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 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) [2023-11-06 21:53:49,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:49,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:53:49,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:53:49,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 21:53:49,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash 298158756, now seen corresponding path program 1 times [2023-11-06 21:53:49,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:49,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443996171] [2023-11-06 21:53:49,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:49,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:49,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:49,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443996171] [2023-11-06 21:53:49,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443996171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:49,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:49,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:53:49,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818194272] [2023-11-06 21:53:49,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:49,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:49,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:49,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:49,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:49,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 173 [2023-11-06 21:53:49,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 18 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-11-06 21:53:49,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:49,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 173 [2023-11-06 21:53:49,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:49,514 INFO L124 PetriNetUnfolderBase]: 34/82 cut-off events. [2023-11-06 21:53:49,514 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:53:49,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 82 events. 34/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 233 event pairs, 20 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 163. Up to 64 conditions per place. [2023-11-06 21:53:49,516 INFO L140 encePairwiseOnDemand]: 167/173 looper letters, 19 selfloop transitions, 4 changer transitions 0/24 dead transitions. [2023-11-06 21:53:49,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 24 transitions, 96 flow [2023-11-06 21:53:49,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:49,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:53:49,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-11-06 21:53:49,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5048169556840078 [2023-11-06 21:53:49,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-11-06 21:53:49,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-11-06 21:53:49,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:49,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-11-06 21:53:49,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2023-11-06 21:53:49,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:49,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:49,526 INFO L175 Difference]: Start difference. First operand has 20 places, 18 transitions, 38 flow. Second operand 3 states and 262 transitions. [2023-11-06 21:53:49,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 24 transitions, 96 flow [2023-11-06 21:53:49,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:53:49,528 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 70 flow [2023-11-06 21:53:49,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2023-11-06 21:53:49,529 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2023-11-06 21:53:49,529 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 70 flow [2023-11-06 21:53:49,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-11-06 21:53:49,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:49,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:49,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:53:49,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 21:53:49,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:49,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1232331622, now seen corresponding path program 1 times [2023-11-06 21:53:49,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:49,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102982870] [2023-11-06 21:53:49,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:49,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:49,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:49,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102982870] [2023-11-06 21:53:49,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102982870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:49,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:49,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:53:49,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707864389] [2023-11-06 21:53:49,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:49,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:49,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:49,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:49,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:49,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 173 [2023-11-06 21:53:49,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-06 21:53:49,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:49,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 173 [2023-11-06 21:53:49,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:49,872 INFO L124 PetriNetUnfolderBase]: 24/67 cut-off events. [2023-11-06 21:53:49,872 INFO L125 PetriNetUnfolderBase]: For 24/26 co-relation queries the response was YES. [2023-11-06 21:53:49,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 67 events. 24/67 cut-off events. For 24/26 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 194 event pairs, 16 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 164. Up to 53 conditions per place. [2023-11-06 21:53:49,874 INFO L140 encePairwiseOnDemand]: 170/173 looper letters, 13 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2023-11-06 21:53:49,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 98 flow [2023-11-06 21:53:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:53:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-11-06 21:53:49,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49710982658959535 [2023-11-06 21:53:49,882 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-11-06 21:53:49,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-11-06 21:53:49,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:49,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-11-06 21:53:49,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2023-11-06 21:53:49,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:49,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:49,891 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 70 flow. Second operand 3 states and 258 transitions. [2023-11-06 21:53:49,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 98 flow [2023-11-06 21:53:49,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:53:49,893 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 64 flow [2023-11-06 21:53:49,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2023-11-06 21:53:49,895 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2023-11-06 21:53:49,896 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 64 flow [2023-11-06 21:53:49,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-06 21:53:49,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:49,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:49,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:53:49,897 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 21:53:49,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1232331623, now seen corresponding path program 1 times [2023-11-06 21:53:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:49,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313596850] [2023-11-06 21:53:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:49,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:49,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:49,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313596850] [2023-11-06 21:53:49,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313596850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:49,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:49,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:53:49,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119905858] [2023-11-06 21:53:49,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:49,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:49,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:49,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:49,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:50,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 173 [2023-11-06 21:53:50,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-11-06 21:53:50,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:50,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 173 [2023-11-06 21:53:50,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:50,079 INFO L124 PetriNetUnfolderBase]: 18/56 cut-off events. [2023-11-06 21:53:50,079 INFO L125 PetriNetUnfolderBase]: For 11/13 co-relation queries the response was YES. [2023-11-06 21:53:50,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 56 events. 18/56 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 event pairs, 12 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 129. Up to 42 conditions per place. [2023-11-06 21:53:50,082 INFO L140 encePairwiseOnDemand]: 170/173 looper letters, 12 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2023-11-06 21:53:50,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 90 flow [2023-11-06 21:53:50,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:50,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:53:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-11-06 21:53:50,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47784200385356457 [2023-11-06 21:53:50,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-11-06 21:53:50,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-11-06 21:53:50,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:50,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-11-06 21:53:50,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-06 21:53:50,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:50,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:50,091 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 64 flow. Second operand 3 states and 248 transitions. [2023-11-06 21:53:50,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 90 flow [2023-11-06 21:53:50,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:53:50,094 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 62 flow [2023-11-06 21:53:50,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2023-11-06 21:53:50,096 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -3 predicate places. [2023-11-06 21:53:50,096 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 62 flow [2023-11-06 21:53:50,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-11-06 21:53:50,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:50,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:50,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:53:50,098 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 21:53:50,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash -814904606, now seen corresponding path program 1 times [2023-11-06 21:53:50,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:50,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986778255] [2023-11-06 21:53:50,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:50,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:50,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:50,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986778255] [2023-11-06 21:53:50,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986778255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:50,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:50,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:53:50,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756931022] [2023-11-06 21:53:50,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:50,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:50,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:50,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:50,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:50,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 173 [2023-11-06 21:53:50,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-11-06 21:53:50,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:50,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 173 [2023-11-06 21:53:50,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:50,261 INFO L124 PetriNetUnfolderBase]: 17/57 cut-off events. [2023-11-06 21:53:50,263 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-06 21:53:50,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 57 events. 17/57 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 148 event pairs, 10 based on Foata normal form. 6/62 useless extension candidates. Maximal degree in co-relation 141. Up to 31 conditions per place. [2023-11-06 21:53:50,264 INFO L140 encePairwiseOnDemand]: 168/173 looper letters, 18 selfloop transitions, 5 changer transitions 0/24 dead transitions. [2023-11-06 21:53:50,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 121 flow [2023-11-06 21:53:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:53:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-11-06 21:53:50,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4932562620423892 [2023-11-06 21:53:50,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-11-06 21:53:50,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-11-06 21:53:50,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:50,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-11-06 21:53:50,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-06 21:53:50,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:50,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:50,278 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 62 flow. Second operand 3 states and 256 transitions. [2023-11-06 21:53:50,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 121 flow [2023-11-06 21:53:50,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 115 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:53:50,280 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 75 flow [2023-11-06 21:53:50,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-11-06 21:53:50,283 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2023-11-06 21:53:50,284 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 75 flow [2023-11-06 21:53:50,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-11-06 21:53:50,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:50,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:50,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:53:50,285 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 21:53:50,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:50,286 INFO L85 PathProgramCache]: Analyzing trace with hash -820266986, now seen corresponding path program 2 times [2023-11-06 21:53:50,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:50,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67042315] [2023-11-06 21:53:50,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:50,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:50,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:50,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67042315] [2023-11-06 21:53:50,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67042315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:50,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:50,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:53:50,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946407262] [2023-11-06 21:53:50,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:50,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:53:50,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:50,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:53:50,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:53:50,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 173 [2023-11-06 21:53:50,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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) [2023-11-06 21:53:50,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:50,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 173 [2023-11-06 21:53:50,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:50,476 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2023-11-06 21:53:50,477 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-06 21:53:50,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 20 events. 1/20 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 1 based on Foata normal form. 6/26 useless extension candidates. Maximal degree in co-relation 56. Up to 8 conditions per place. [2023-11-06 21:53:50,477 INFO L140 encePairwiseOnDemand]: 166/173 looper letters, 5 selfloop transitions, 7 changer transitions 0/12 dead transitions. [2023-11-06 21:53:50,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 12 transitions, 67 flow [2023-11-06 21:53:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:53:50,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:53:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2023-11-06 21:53:50,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43352601156069365 [2023-11-06 21:53:50,480 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 375 transitions. [2023-11-06 21:53:50,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 375 transitions. [2023-11-06 21:53:50,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:50,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 375 transitions. [2023-11-06 21:53:50,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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) [2023-11-06 21:53:50,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 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) [2023-11-06 21:53:50,486 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 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) [2023-11-06 21:53:50,487 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 75 flow. Second operand 5 states and 375 transitions. [2023-11-06 21:53:50,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 12 transitions, 67 flow [2023-11-06 21:53:50,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 12 transitions, 50 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-11-06 21:53:50,489 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 40 flow [2023-11-06 21:53:50,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=40, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-11-06 21:53:50,493 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -6 predicate places. [2023-11-06 21:53:50,493 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 40 flow [2023-11-06 21:53:50,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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) [2023-11-06 21:53:50,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:50,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:50,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:53:50,494 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 21:53:50,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1556395094, now seen corresponding path program 1 times [2023-11-06 21:53:50,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:50,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881156130] [2023-11-06 21:53:50,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:50,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:50,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:50,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881156130] [2023-11-06 21:53:50,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881156130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:50,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:50,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:53:50,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217418450] [2023-11-06 21:53:50,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:50,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:50,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:50,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:50,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 173 [2023-11-06 21:53:50,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-06 21:53:50,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:50,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 173 [2023-11-06 21:53:50,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:50,773 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2023-11-06 21:53:50,773 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:53:50,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 19 events. 1/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 1 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 48. Up to 15 conditions per place. [2023-11-06 21:53:50,774 INFO L140 encePairwiseOnDemand]: 171/173 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-11-06 21:53:50,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 56 flow [2023-11-06 21:53:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:50,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:53:50,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-11-06 21:53:50,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4932562620423892 [2023-11-06 21:53:50,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-11-06 21:53:50,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-11-06 21:53:50,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:50,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-11-06 21:53:50,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-06 21:53:50,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:50,780 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 21:53:50,780 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 40 flow. Second operand 3 states and 256 transitions. [2023-11-06 21:53:50,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 56 flow [2023-11-06 21:53:50,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 11 transitions, 47 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:53:50,782 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-11-06 21:53:50,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-11-06 21:53:50,783 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -8 predicate places. [2023-11-06 21:53:50,783 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-11-06 21:53:50,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-06 21:53:50,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-11-06 21:53:50,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-11-06 21:53:50,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-11-06 21:53:50,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2023-11-06 21:53:50,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-11-06 21:53:50,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2023-11-06 21:53:50,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2023-11-06 21:53:50,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-11-06 21:53:50,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:53:50,789 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-06 21:53:50,792 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:53:50,793 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:53:50,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:53:50 BasicIcfg [2023-11-06 21:53:50,798 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:53:50,798 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:53:50,798 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:53:50,799 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:53:50,800 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:42" (3/4) ... [2023-11-06 21:53:50,802 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:53:50,808 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 21:53:50,816 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-06 21:53:50,817 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 21:53:50,817 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 21:53:50,817 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:53:50,817 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:53:50,879 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:53:50,879 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:53:50,879 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:53:50,880 INFO L158 Benchmark]: Toolchain (without parser) took 9525.50ms. Allocated memory was 117.4MB in the beginning and 161.5MB in the end (delta: 44.0MB). Free memory was 71.4MB in the beginning and 108.6MB in the end (delta: -37.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-11-06 21:53:50,880 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:50,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.69ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 51.8MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 21:53:50,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.46ms. Allocated memory is still 117.4MB. Free memory was 51.8MB in the beginning and 49.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:50,881 INFO L158 Benchmark]: Boogie Preprocessor took 36.88ms. Allocated memory is still 117.4MB. Free memory was 49.7MB in the beginning and 47.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:50,882 INFO L158 Benchmark]: RCFGBuilder took 598.17ms. Allocated memory was 117.4MB in the beginning and 161.5MB in the end (delta: 44.0MB). Free memory was 47.9MB in the beginning and 124.2MB in the end (delta: -76.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-06 21:53:50,882 INFO L158 Benchmark]: TraceAbstraction took 8081.98ms. Allocated memory is still 161.5MB. Free memory was 123.1MB in the beginning and 111.7MB in the end (delta: 11.4MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2023-11-06 21:53:50,882 INFO L158 Benchmark]: Witness Printer took 81.25ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 108.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:50,884 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 661.69ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 51.8MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.46ms. Allocated memory is still 117.4MB. Free memory was 51.8MB in the beginning and 49.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.88ms. Allocated memory is still 117.4MB. Free memory was 49.7MB in the beginning and 47.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 598.17ms. Allocated memory was 117.4MB in the beginning and 161.5MB in the end (delta: 44.0MB). Free memory was 47.9MB in the beginning and 124.2MB in the end (delta: -76.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8081.98ms. Allocated memory is still 161.5MB. Free memory was 123.1MB in the beginning and 111.7MB in the end (delta: 11.4MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Witness Printer took 81.25ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 108.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 86 PlacesBefore, 25 PlacesAfterwards, 85 TransitionsBefore, 23 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 9 FixpointIterations, 62 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 82 TotalNumberOfCompositions, 1995 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 794, independent: 576, independent conditional: 0, independent unconditional: 576, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 202, independent: 173, independent conditional: 0, independent unconditional: 173, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 794, independent: 403, independent conditional: 0, independent unconditional: 403, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 202, unknown conditional: 0, unknown unconditional: 202] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 704]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 708]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 702]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 8 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: 7.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 277 IncrementalHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 35 mSDtfsCounter, 277 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=5, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:53:50,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2dbf75-e1ac-4355-90ad-cb135e5e8db4/bin/uautomizer-verify-WvqO1wxjHP/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: TRUE