./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/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_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/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_b4273924-6a43-4729-bbe8-1e0d6e28029a/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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:23:10,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:23:10,283 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:23:10,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:23:10,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:23:10,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:23:10,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:23:10,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:23:10,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:23:10,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:23:10,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:23:10,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:23:10,341 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:23:10,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:23:10,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:23:10,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:23:10,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:23:10,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:23:10,345 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:23:10,346 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:23:10,346 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:23:10,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:23:10,347 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:23:10,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:23:10,348 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:23:10,349 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:23:10,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:23:10,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:23:10,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:23:10,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:10,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:23:10,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:23:10,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:23:10,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:23:10,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:23:10,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:23:10,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:23:10,355 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:23:10,355 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_b4273924-6a43-4729-bbe8-1e0d6e28029a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf [2023-11-06 22:23:10,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:23:10,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:23:10,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:23:10,722 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:23:10,723 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:23:10,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-11-06 22:23:13,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:23:14,074 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:23:14,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-11-06 22:23:14,091 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/data/36a39da0f/b5b1c39240474bdc883fb7e01541430f/FLAGaac4f5d7e [2023-11-06 22:23:14,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/data/36a39da0f/b5b1c39240474bdc883fb7e01541430f [2023-11-06 22:23:14,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:23:14,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:23:14,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:14,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:23:14,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:23:14,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca62ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14, skipping insertion in model container [2023-11-06 22:23:14,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,196 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:14,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:14,554 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:23:14,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:14,673 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:23:14,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14 WrapperNode [2023-11-06 22:23:14,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:14,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:14,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:23:14,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:23:14,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,723 INFO L138 Inliner]: procedures = 162, calls = 47, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 101 [2023-11-06 22:23:14,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:14,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:23:14,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:23:14,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:23:14,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:23:14,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:23:14,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:23:14,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:23:14,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:14,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:14,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:23:14,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:23:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:23:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:23:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:23:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:23:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:23:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:23:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:23:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:23:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:23:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:23:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:23:14,846 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 22:23:14,980 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:23:14,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:23:15,216 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:23:15,225 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:23:15,226 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:23:15,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:15 BoogieIcfgContainer [2023-11-06 22:23:15,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:23:15,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:23:15,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:23:15,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:23:15,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:23:14" (1/3) ... [2023-11-06 22:23:15,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b03b586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:15, skipping insertion in model container [2023-11-06 22:23:15,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (2/3) ... [2023-11-06 22:23:15,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b03b586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:15, skipping insertion in model container [2023-11-06 22:23:15,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:15" (3/3) ... [2023-11-06 22:23:15,238 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-11-06 22:23:15,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:23:15,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-06 22:23:15,257 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:23:15,355 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:23:15,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 167 transitions, 341 flow [2023-11-06 22:23:15,467 INFO L124 PetriNetUnfolderBase]: 8/166 cut-off events. [2023-11-06 22:23:15,468 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:23:15,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 166 events. 8/166 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 200 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2023-11-06 22:23:15,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 167 transitions, 341 flow [2023-11-06 22:23:15,480 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 161 transitions, 328 flow [2023-11-06 22:23:15,484 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:23:15,495 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 161 transitions, 328 flow [2023-11-06 22:23:15,498 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 161 transitions, 328 flow [2023-11-06 22:23:15,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 161 transitions, 328 flow [2023-11-06 22:23:15,576 INFO L124 PetriNetUnfolderBase]: 8/161 cut-off events. [2023-11-06 22:23:15,576 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:23:15,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 161 events. 8/161 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 199 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2023-11-06 22:23:15,589 INFO L119 LiptonReduction]: Number of co-enabled transitions 5478 [2023-11-06 22:23:20,495 INFO L134 LiptonReduction]: Checked pairs total: 16334 [2023-11-06 22:23:20,496 INFO L136 LiptonReduction]: Total number of compositions: 159 [2023-11-06 22:23:20,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:23:20,518 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;@267b24bc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:23:20,519 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-06 22:23:20,521 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:23:20,521 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:23:20,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:23:20,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:20,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:23:20,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:20,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:20,528 INFO L85 PathProgramCache]: Analyzing trace with hash 593, now seen corresponding path program 1 times [2023-11-06 22:23:20,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:20,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143696431] [2023-11-06 22:23:20,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:20,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:20,662 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 22:23:20,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:20,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143696431] [2023-11-06 22:23:20,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143696431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:20,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:20,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:23:20,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998461600] [2023-11-06 22:23:20,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:20,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:23:20,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:20,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:23:20,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:23:20,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 326 [2023-11-06 22:23:20,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 57 transitions, 120 flow. Second operand has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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 22:23:20,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:20,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 326 [2023-11-06 22:23:20,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:20,942 INFO L124 PetriNetUnfolderBase]: 264/609 cut-off events. [2023-11-06 22:23:20,942 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:23:20,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 609 events. 264/609 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2709 event pairs, 264 based on Foata normal form. 13/522 useless extension candidates. Maximal degree in co-relation 1167. Up to 567 conditions per place. [2023-11-06 22:23:20,956 INFO L140 encePairwiseOnDemand]: 317/326 looper letters, 37 selfloop transitions, 0 changer transitions 1/43 dead transitions. [2023-11-06 22:23:20,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 168 flow [2023-11-06 22:23:20,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:23:20,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:23:20,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 353 transitions. [2023-11-06 22:23:20,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5414110429447853 [2023-11-06 22:23:20,982 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 353 transitions. [2023-11-06 22:23:20,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 353 transitions. [2023-11-06 22:23:20,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:20,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 353 transitions. [2023-11-06 22:23:21,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 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 22:23:21,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 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 22:23:21,020 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 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 22:23:21,022 INFO L175 Difference]: Start difference. First operand has 54 places, 57 transitions, 120 flow. Second operand 2 states and 353 transitions. [2023-11-06 22:23:21,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 168 flow [2023-11-06 22:23:21,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 43 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:23:21,029 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 86 flow [2023-11-06 22:23:21,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=86, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2023-11-06 22:23:21,035 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -8 predicate places. [2023-11-06 22:23:21,035 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 86 flow [2023-11-06 22:23:21,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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 22:23:21,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:21,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:23:21,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:23:21,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:21,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash 561099297, now seen corresponding path program 1 times [2023-11-06 22:23:21,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:21,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049033979] [2023-11-06 22:23:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:21,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:21,319 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 22:23:21,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:21,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049033979] [2023-11-06 22:23:21,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049033979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:21,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:21,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:23:21,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440321768] [2023-11-06 22:23:21,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:21,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:21,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:21,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:21,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:21,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 326 [2023-11-06 22:23:21,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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 22:23:21,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:21,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 326 [2023-11-06 22:23:21,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:21,590 INFO L124 PetriNetUnfolderBase]: 377/912 cut-off events. [2023-11-06 22:23:21,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:23:21,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 912 events. 377/912 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5081 event pairs, 63 based on Foata normal form. 0/810 useless extension candidates. Maximal degree in co-relation 1732. Up to 426 conditions per place. [2023-11-06 22:23:21,598 INFO L140 encePairwiseOnDemand]: 318/326 looper letters, 61 selfloop transitions, 5 changer transitions 0/71 dead transitions. [2023-11-06 22:23:21,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 71 transitions, 277 flow [2023-11-06 22:23:21,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:21,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:23:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2023-11-06 22:23:21,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5306748466257669 [2023-11-06 22:23:21,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2023-11-06 22:23:21,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2023-11-06 22:23:21,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:21,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2023-11-06 22:23:21,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 22:23:21,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:21,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:21,614 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 86 flow. Second operand 3 states and 519 transitions. [2023-11-06 22:23:21,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 71 transitions, 277 flow [2023-11-06 22:23:21,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 71 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:23:21,617 INFO L231 Difference]: Finished difference. Result has 49 places, 45 transitions, 124 flow [2023-11-06 22:23:21,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=49, PETRI_TRANSITIONS=45} [2023-11-06 22:23:21,619 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2023-11-06 22:23:21,620 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 124 flow [2023-11-06 22:23:21,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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 22:23:21,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:21,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:21,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:23:21,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:21,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:21,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2052199171, now seen corresponding path program 1 times [2023-11-06 22:23:21,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:21,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364817421] [2023-11-06 22:23:21,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:21,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:21,762 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 22:23:21,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:21,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364817421] [2023-11-06 22:23:21,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364817421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:21,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:21,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:21,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183294590] [2023-11-06 22:23:21,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:21,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:21,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:21,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:21,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:21,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 326 [2023-11-06 22:23:21,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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 22:23:21,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:21,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 326 [2023-11-06 22:23:21,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:22,112 INFO L124 PetriNetUnfolderBase]: 591/1270 cut-off events. [2023-11-06 22:23:22,112 INFO L125 PetriNetUnfolderBase]: For 202/202 co-relation queries the response was YES. [2023-11-06 22:23:22,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2809 conditions, 1270 events. 591/1270 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6599 event pairs, 357 based on Foata normal form. 6/1175 useless extension candidates. Maximal degree in co-relation 2804. Up to 1111 conditions per place. [2023-11-06 22:23:22,123 INFO L140 encePairwiseOnDemand]: 310/326 looper letters, 67 selfloop transitions, 16 changer transitions 0/83 dead transitions. [2023-11-06 22:23:22,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 83 transitions, 392 flow [2023-11-06 22:23:22,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:22,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:23:22,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2023-11-06 22:23:22,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5051124744376279 [2023-11-06 22:23:22,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 494 transitions. [2023-11-06 22:23:22,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 494 transitions. [2023-11-06 22:23:22,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:22,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 494 transitions. [2023-11-06 22:23:22,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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 22:23:22,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:22,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:22,133 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 124 flow. Second operand 3 states and 494 transitions. [2023-11-06 22:23:22,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 83 transitions, 392 flow [2023-11-06 22:23:22,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 83 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:23:22,140 INFO L231 Difference]: Finished difference. Result has 50 places, 59 transitions, 218 flow [2023-11-06 22:23:22,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=50, PETRI_TRANSITIONS=59} [2023-11-06 22:23:22,141 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2023-11-06 22:23:22,141 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 59 transitions, 218 flow [2023-11-06 22:23:22,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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 22:23:22,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:22,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:22,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:23:22,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:22,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:22,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1667505581, now seen corresponding path program 1 times [2023-11-06 22:23:22,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:22,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143500023] [2023-11-06 22:23:22,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:22,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:22,333 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 22:23:22,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:22,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143500023] [2023-11-06 22:23:22,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143500023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:22,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:22,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:22,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238467211] [2023-11-06 22:23:22,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:22,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:22,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:22,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:22,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:22,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 326 [2023-11-06 22:23:22,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 59 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 22:23:22,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:22,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 326 [2023-11-06 22:23:22,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:22,668 INFO L124 PetriNetUnfolderBase]: 295/710 cut-off events. [2023-11-06 22:23:22,668 INFO L125 PetriNetUnfolderBase]: For 137/145 co-relation queries the response was YES. [2023-11-06 22:23:22,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 710 events. 295/710 cut-off events. For 137/145 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3628 event pairs, 116 based on Foata normal form. 15/617 useless extension candidates. Maximal degree in co-relation 1833. Up to 359 conditions per place. [2023-11-06 22:23:22,674 INFO L140 encePairwiseOnDemand]: 317/326 looper letters, 69 selfloop transitions, 13 changer transitions 0/87 dead transitions. [2023-11-06 22:23:22,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 87 transitions, 459 flow [2023-11-06 22:23:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:23:22,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 652 transitions. [2023-11-06 22:23:22,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-06 22:23:22,678 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 652 transitions. [2023-11-06 22:23:22,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 652 transitions. [2023-11-06 22:23:22,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:22,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 652 transitions. [2023-11-06 22:23:22,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 22:23:22,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:22,686 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:22,687 INFO L175 Difference]: Start difference. First operand has 50 places, 59 transitions, 218 flow. Second operand 4 states and 652 transitions. [2023-11-06 22:23:22,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 87 transitions, 459 flow [2023-11-06 22:23:22,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 87 transitions, 448 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:23:22,695 INFO L231 Difference]: Finished difference. Result has 52 places, 59 transitions, 252 flow [2023-11-06 22:23:22,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2023-11-06 22:23:22,697 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-11-06 22:23:22,697 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 252 flow [2023-11-06 22:23:22,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 22:23:22,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:22,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:22,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:23:22,699 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:22,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1855582062, now seen corresponding path program 1 times [2023-11-06 22:23:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755183753] [2023-11-06 22:23:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:22,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:22,779 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 22:23:22,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:22,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755183753] [2023-11-06 22:23:22,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755183753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:22,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:22,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:23:22,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158041675] [2023-11-06 22:23:22,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:22,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:22,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:22,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 326 [2023-11-06 22:23:22,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 22:23:22,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:22,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 326 [2023-11-06 22:23:22,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:22,987 INFO L124 PetriNetUnfolderBase]: 320/782 cut-off events. [2023-11-06 22:23:22,988 INFO L125 PetriNetUnfolderBase]: For 227/231 co-relation queries the response was YES. [2023-11-06 22:23:22,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2257 conditions, 782 events. 320/782 cut-off events. For 227/231 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4092 event pairs, 118 based on Foata normal form. 1/667 useless extension candidates. Maximal degree in co-relation 2250. Up to 377 conditions per place. [2023-11-06 22:23:22,995 INFO L140 encePairwiseOnDemand]: 321/326 looper letters, 73 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2023-11-06 22:23:22,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 86 transitions, 507 flow [2023-11-06 22:23:22,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:23:22,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2023-11-06 22:23:22,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.523517382413088 [2023-11-06 22:23:22,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2023-11-06 22:23:22,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2023-11-06 22:23:22,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:22,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2023-11-06 22:23:23,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 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 22:23:23,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:23,005 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:23,005 INFO L175 Difference]: Start difference. First operand has 52 places, 59 transitions, 252 flow. Second operand 3 states and 512 transitions. [2023-11-06 22:23:23,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 86 transitions, 507 flow [2023-11-06 22:23:23,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 86 transitions, 506 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:23:23,009 INFO L231 Difference]: Finished difference. Result has 55 places, 61 transitions, 277 flow [2023-11-06 22:23:23,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=55, PETRI_TRANSITIONS=61} [2023-11-06 22:23:23,011 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2023-11-06 22:23:23,011 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 61 transitions, 277 flow [2023-11-06 22:23:23,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 22:23:23,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:23,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:23,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:23:23,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:23,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:23,013 INFO L85 PathProgramCache]: Analyzing trace with hash -97325944, now seen corresponding path program 1 times [2023-11-06 22:23:23,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:23,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337358116] [2023-11-06 22:23:23,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:23,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:23,154 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 22:23:23,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:23,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337358116] [2023-11-06 22:23:23,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337358116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:23,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:23,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:23,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786496087] [2023-11-06 22:23:23,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:23,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:23,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:23,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:23,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:23,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 326 [2023-11-06 22:23:23,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 61 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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 22:23:23,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:23,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 326 [2023-11-06 22:23:23,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:23,333 INFO L124 PetriNetUnfolderBase]: 287/724 cut-off events. [2023-11-06 22:23:23,333 INFO L125 PetriNetUnfolderBase]: For 304/308 co-relation queries the response was YES. [2023-11-06 22:23:23,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2203 conditions, 724 events. 287/724 cut-off events. For 304/308 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3687 event pairs, 227 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 2195. Up to 589 conditions per place. [2023-11-06 22:23:23,339 INFO L140 encePairwiseOnDemand]: 320/326 looper letters, 56 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2023-11-06 22:23:23,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 68 transitions, 439 flow [2023-11-06 22:23:23,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:23:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 643 transitions. [2023-11-06 22:23:23,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49309815950920244 [2023-11-06 22:23:23,343 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 643 transitions. [2023-11-06 22:23:23,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 643 transitions. [2023-11-06 22:23:23,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:23,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 643 transitions. [2023-11-06 22:23:23,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 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 22:23:23,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:23,352 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:23,352 INFO L175 Difference]: Start difference. First operand has 55 places, 61 transitions, 277 flow. Second operand 4 states and 643 transitions. [2023-11-06 22:23:23,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 68 transitions, 439 flow [2023-11-06 22:23:23,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 68 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:23:23,359 INFO L231 Difference]: Finished difference. Result has 57 places, 59 transitions, 276 flow [2023-11-06 22:23:23,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=57, PETRI_TRANSITIONS=59} [2023-11-06 22:23:23,361 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-11-06 22:23:23,362 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 276 flow [2023-11-06 22:23:23,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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 22:23:23,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:23,362 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:23,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:23:23,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:23,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:23,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1729606088, now seen corresponding path program 1 times [2023-11-06 22:23:23,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:23,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126906826] [2023-11-06 22:23:23,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:23,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:23,503 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 22:23:23,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:23,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126906826] [2023-11-06 22:23:23,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126906826] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:23,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:23,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:23:23,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504188655] [2023-11-06 22:23:23,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:23,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:23,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:23,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:23,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:23,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 326 [2023-11-06 22:23:23,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 59 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 22:23:23,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:23,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 326 [2023-11-06 22:23:23,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:23,665 INFO L124 PetriNetUnfolderBase]: 253/648 cut-off events. [2023-11-06 22:23:23,666 INFO L125 PetriNetUnfolderBase]: For 304/308 co-relation queries the response was YES. [2023-11-06 22:23:23,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 648 events. 253/648 cut-off events. For 304/308 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3177 event pairs, 211 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 1943. Up to 565 conditions per place. [2023-11-06 22:23:23,672 INFO L140 encePairwiseOnDemand]: 323/326 looper letters, 45 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-11-06 22:23:23,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 56 transitions, 350 flow [2023-11-06 22:23:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:23,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:23:23,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-11-06 22:23:23,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4867075664621677 [2023-11-06 22:23:23,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-11-06 22:23:23,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-11-06 22:23:23,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:23,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-11-06 22:23:23,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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 22:23:23,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:23,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:23,681 INFO L175 Difference]: Start difference. First operand has 57 places, 59 transitions, 276 flow. Second operand 3 states and 476 transitions. [2023-11-06 22:23:23,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 56 transitions, 350 flow [2023-11-06 22:23:23,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 340 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-06 22:23:23,685 INFO L231 Difference]: Finished difference. Result has 55 places, 56 transitions, 250 flow [2023-11-06 22:23:23,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=55, PETRI_TRANSITIONS=56} [2023-11-06 22:23:23,687 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2023-11-06 22:23:23,687 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 56 transitions, 250 flow [2023-11-06 22:23:23,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 22:23:23,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:23,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:23,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:23:23,688 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:23,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:23,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1729606087, now seen corresponding path program 1 times [2023-11-06 22:23:23,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:23,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692110084] [2023-11-06 22:23:23,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:23,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:23,790 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 22:23:23,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:23,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692110084] [2023-11-06 22:23:23,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692110084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:23,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:23,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:23:23,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27738253] [2023-11-06 22:23:23,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:23,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:23,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:23,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:23,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:23,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 326 [2023-11-06 22:23:23,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 56 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 22:23:23,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:23,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 326 [2023-11-06 22:23:23,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:23,944 INFO L124 PetriNetUnfolderBase]: 219/573 cut-off events. [2023-11-06 22:23:23,944 INFO L125 PetriNetUnfolderBase]: For 231/235 co-relation queries the response was YES. [2023-11-06 22:23:23,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 573 events. 219/573 cut-off events. For 231/235 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2735 event pairs, 184 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 1652. Up to 501 conditions per place. [2023-11-06 22:23:23,949 INFO L140 encePairwiseOnDemand]: 323/326 looper letters, 42 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-11-06 22:23:23,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 318 flow [2023-11-06 22:23:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:23,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:23:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-11-06 22:23:23,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47648261758691207 [2023-11-06 22:23:23,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-11-06 22:23:23,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-11-06 22:23:23,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:23,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-11-06 22:23:23,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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 22:23:23,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:23,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:23,958 INFO L175 Difference]: Start difference. First operand has 55 places, 56 transitions, 250 flow. Second operand 3 states and 466 transitions. [2023-11-06 22:23:23,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 318 flow [2023-11-06 22:23:23,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:23:23,964 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 230 flow [2023-11-06 22:23:23,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2023-11-06 22:23:23,967 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2023-11-06 22:23:23,967 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 230 flow [2023-11-06 22:23:23,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 22:23:23,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:23,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:23,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:23:23,970 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:23,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:23,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1729778341, now seen corresponding path program 1 times [2023-11-06 22:23:23,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:23,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499533031] [2023-11-06 22:23:23,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:23,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:24,087 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 22:23:24,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:24,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499533031] [2023-11-06 22:23:24,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499533031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:24,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:24,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:24,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297050347] [2023-11-06 22:23:24,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:24,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:24,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:24,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:24,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:24,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 326 [2023-11-06 22:23:24,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 22:23:24,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:24,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 326 [2023-11-06 22:23:24,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:24,324 INFO L124 PetriNetUnfolderBase]: 145/472 cut-off events. [2023-11-06 22:23:24,324 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES. [2023-11-06 22:23:24,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 472 events. 145/472 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2276 event pairs, 42 based on Foata normal form. 54/521 useless extension candidates. Maximal degree in co-relation 1466. Up to 263 conditions per place. [2023-11-06 22:23:24,329 INFO L140 encePairwiseOnDemand]: 306/326 looper letters, 55 selfloop transitions, 29 changer transitions 0/84 dead transitions. [2023-11-06 22:23:24,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 548 flow [2023-11-06 22:23:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:23:24,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2023-11-06 22:23:24,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4775051124744376 [2023-11-06 22:23:24,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 467 transitions. [2023-11-06 22:23:24,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 467 transitions. [2023-11-06 22:23:24,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:24,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 467 transitions. [2023-11-06 22:23:24,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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 22:23:24,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:24,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:24,339 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 230 flow. Second operand 3 states and 467 transitions. [2023-11-06 22:23:24,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 548 flow [2023-11-06 22:23:24,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 84 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:23:24,344 INFO L231 Difference]: Finished difference. Result has 55 places, 69 transitions, 431 flow [2023-11-06 22:23:24,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=55, PETRI_TRANSITIONS=69} [2023-11-06 22:23:24,345 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2023-11-06 22:23:24,345 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 69 transitions, 431 flow [2023-11-06 22:23:24,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 22:23:24,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:24,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:24,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:23:24,347 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:24,347 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:24,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2083441417, now seen corresponding path program 1 times [2023-11-06 22:23:24,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:24,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288734054] [2023-11-06 22:23:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:24,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:24,628 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 22:23:24,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:24,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288734054] [2023-11-06 22:23:24,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288734054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:24,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:24,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:24,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793347228] [2023-11-06 22:23:24,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:24,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:24,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:24,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:24,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 326 [2023-11-06 22:23:24,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 69 transitions, 431 flow. Second operand has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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 22:23:24,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:24,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 326 [2023-11-06 22:23:24,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:24,921 INFO L124 PetriNetUnfolderBase]: 102/355 cut-off events. [2023-11-06 22:23:24,921 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2023-11-06 22:23:24,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1378 conditions, 355 events. 102/355 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1569 event pairs, 32 based on Foata normal form. 4/354 useless extension candidates. Maximal degree in co-relation 1367. Up to 294 conditions per place. [2023-11-06 22:23:24,925 INFO L140 encePairwiseOnDemand]: 321/326 looper letters, 62 selfloop transitions, 6 changer transitions 0/68 dead transitions. [2023-11-06 22:23:24,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 68 transitions, 535 flow [2023-11-06 22:23:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:24,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:23:24,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 590 transitions. [2023-11-06 22:23:24,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45245398773006135 [2023-11-06 22:23:24,928 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 590 transitions. [2023-11-06 22:23:24,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 590 transitions. [2023-11-06 22:23:24,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:24,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 590 transitions. [2023-11-06 22:23:24,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.5) internal successors, (590), 4 states have internal predecessors, (590), 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 22:23:24,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:24,934 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:24,935 INFO L175 Difference]: Start difference. First operand has 55 places, 69 transitions, 431 flow. Second operand 4 states and 590 transitions. [2023-11-06 22:23:24,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 68 transitions, 535 flow [2023-11-06 22:23:24,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 68 transitions, 494 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-06 22:23:24,939 INFO L231 Difference]: Finished difference. Result has 54 places, 57 transitions, 316 flow [2023-11-06 22:23:24,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=316, PETRI_PLACES=54, PETRI_TRANSITIONS=57} [2023-11-06 22:23:24,941 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2023-11-06 22:23:24,941 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 57 transitions, 316 flow [2023-11-06 22:23:24,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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 22:23:24,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:24,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:24,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:23:24,942 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:24,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1272658702, now seen corresponding path program 1 times [2023-11-06 22:23:24,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:24,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293909519] [2023-11-06 22:23:24,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:24,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:25,271 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 22:23:25,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:25,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293909519] [2023-11-06 22:23:25,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293909519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:25,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:25,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:23:25,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485442201] [2023-11-06 22:23:25,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:25,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:23:25,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:25,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:23:25,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:23:25,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 326 [2023-11-06 22:23:25,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 57 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 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 22:23:25,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:25,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 326 [2023-11-06 22:23:25,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:25,624 INFO L124 PetriNetUnfolderBase]: 36/205 cut-off events. [2023-11-06 22:23:25,624 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2023-11-06 22:23:25,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 205 events. 36/205 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 729 event pairs, 6 based on Foata normal form. 14/217 useless extension candidates. Maximal degree in co-relation 734. Up to 128 conditions per place. [2023-11-06 22:23:25,626 INFO L140 encePairwiseOnDemand]: 321/326 looper letters, 51 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2023-11-06 22:23:25,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 62 transitions, 466 flow [2023-11-06 22:23:25,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:23:25,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 591 transitions. [2023-11-06 22:23:25,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4532208588957055 [2023-11-06 22:23:25,629 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 591 transitions. [2023-11-06 22:23:25,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 591 transitions. [2023-11-06 22:23:25,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:25,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 591 transitions. [2023-11-06 22:23:25,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 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 22:23:25,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:25,636 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:25,636 INFO L175 Difference]: Start difference. First operand has 54 places, 57 transitions, 316 flow. Second operand 4 states and 591 transitions. [2023-11-06 22:23:25,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 62 transitions, 466 flow [2023-11-06 22:23:25,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 62 transitions, 436 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-11-06 22:23:25,639 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 286 flow [2023-11-06 22:23:25,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=286, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2023-11-06 22:23:25,640 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2023-11-06 22:23:25,640 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 286 flow [2023-11-06 22:23:25,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 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 22:23:25,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:25,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:25,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:23:25,642 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:25,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:25,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1233739380, now seen corresponding path program 1 times [2023-11-06 22:23:25,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:25,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801895685] [2023-11-06 22:23:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:25,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:25,805 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 22:23:25,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:25,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801895685] [2023-11-06 22:23:25,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801895685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:25,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:25,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:25,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335195028] [2023-11-06 22:23:25,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:25,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:25,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:25,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:25,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:25,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 326 [2023-11-06 22:23:25,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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 22:23:25,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:25,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 326 [2023-11-06 22:23:25,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:25,920 INFO L124 PetriNetUnfolderBase]: 36/203 cut-off events. [2023-11-06 22:23:25,921 INFO L125 PetriNetUnfolderBase]: For 198/198 co-relation queries the response was YES. [2023-11-06 22:23:25,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 203 events. 36/203 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 693 event pairs, 17 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 694. Up to 145 conditions per place. [2023-11-06 22:23:25,922 INFO L140 encePairwiseOnDemand]: 322/326 looper letters, 51 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2023-11-06 22:23:25,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 62 transitions, 447 flow [2023-11-06 22:23:25,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:25,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:23:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 640 transitions. [2023-11-06 22:23:25,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49079754601226994 [2023-11-06 22:23:25,926 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 640 transitions. [2023-11-06 22:23:25,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 640 transitions. [2023-11-06 22:23:25,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:25,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 640 transitions. [2023-11-06 22:23:25,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 22:23:25,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:25,932 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 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 22:23:25,932 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 286 flow. Second operand 4 states and 640 transitions. [2023-11-06 22:23:25,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 62 transitions, 447 flow [2023-11-06 22:23:25,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 62 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:23:25,936 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 277 flow [2023-11-06 22:23:25,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2023-11-06 22:23:25,937 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2023-11-06 22:23:25,937 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 277 flow [2023-11-06 22:23:25,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 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 22:23:25,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:25,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:25,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:23:25,938 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-11-06 22:23:25,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:25,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1154580662, now seen corresponding path program 1 times [2023-11-06 22:23:25,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:25,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214719899] [2023-11-06 22:23:25,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:25,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:26,150 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 22:23:26,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:26,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214719899] [2023-11-06 22:23:26,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214719899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:26,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:26,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:23:26,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685670948] [2023-11-06 22:23:26,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:26,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:26,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:26,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:26,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2023-11-06 22:23:26,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 22:23:26,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:26,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2023-11-06 22:23:26,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:26,262 INFO L124 PetriNetUnfolderBase]: 36/200 cut-off events. [2023-11-06 22:23:26,262 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2023-11-06 22:23:26,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 200 events. 36/200 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 684 event pairs, 24 based on Foata normal form. 3/203 useless extension candidates. Maximal degree in co-relation 691. Up to 181 conditions per place. [2023-11-06 22:23:26,263 INFO L140 encePairwiseOnDemand]: 324/326 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2023-11-06 22:23:26,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 361 flow [2023-11-06 22:23:26,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:23:26,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2023-11-06 22:23:26,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48568507157464214 [2023-11-06 22:23:26,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 475 transitions. [2023-11-06 22:23:26,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 475 transitions. [2023-11-06 22:23:26,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:26,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 475 transitions. [2023-11-06 22:23:26,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 22:23:26,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:26,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:23:26,272 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 277 flow. Second operand 3 states and 475 transitions. [2023-11-06 22:23:26,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 361 flow [2023-11-06 22:23:26,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 355 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:23:26,274 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2023-11-06 22:23:26,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2023-11-06 22:23:26,275 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-11-06 22:23:26,275 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2023-11-06 22:23:26,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 22:23:26,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 10 remaining) [2023-11-06 22:23:26,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2023-11-06 22:23:26,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 10 remaining) [2023-11-06 22:23:26,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (6 of 10 remaining) [2023-11-06 22:23:26,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (5 of 10 remaining) [2023-11-06 22:23:26,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2023-11-06 22:23:26,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining) [2023-11-06 22:23:26,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining) [2023-11-06 22:23:26,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (1 of 10 remaining) [2023-11-06 22:23:26,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2023-11-06 22:23:26,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:23:26,280 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:26,284 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:23:26,284 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:23:26,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:23:26 BasicIcfg [2023-11-06 22:23:26,288 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:23:26,288 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:23:26,289 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:23:26,289 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:23:26,289 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:15" (3/4) ... [2023-11-06 22:23:26,291 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:23:26,296 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 22:23:26,301 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-06 22:23:26,302 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:23:26,302 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:23:26,303 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:23:26,359 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:23:26,360 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:23:26,360 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:23:26,361 INFO L158 Benchmark]: Toolchain (without parser) took 12243.38ms. Allocated memory was 130.0MB in the beginning and 249.6MB in the end (delta: 119.5MB). Free memory was 86.0MB in the beginning and 156.3MB in the end (delta: -70.4MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2023-11-06 22:23:26,361 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory was 105.6MB in the beginning and 105.6MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:26,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.63ms. Allocated memory is still 130.0MB. Free memory was 86.0MB in the beginning and 97.8MB in the end (delta: -11.9MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-11-06 22:23:26,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.93ms. Allocated memory is still 130.0MB. Free memory was 97.8MB in the beginning and 95.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:23:26,362 INFO L158 Benchmark]: Boogie Preprocessor took 32.69ms. Allocated memory is still 130.0MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:23:26,363 INFO L158 Benchmark]: RCFGBuilder took 470.55ms. Allocated memory is still 130.0MB. Free memory was 93.8MB in the beginning and 76.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:23:26,363 INFO L158 Benchmark]: TraceAbstraction took 11057.33ms. Allocated memory was 130.0MB in the beginning and 249.6MB in the end (delta: 119.5MB). Free memory was 75.6MB in the beginning and 160.5MB in the end (delta: -84.9MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2023-11-06 22:23:26,364 INFO L158 Benchmark]: Witness Printer took 71.73ms. Allocated memory is still 249.6MB. Free memory was 160.5MB in the beginning and 156.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:23:26,366 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory was 105.6MB in the beginning and 105.6MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.63ms. Allocated memory is still 130.0MB. Free memory was 86.0MB in the beginning and 97.8MB in the end (delta: -11.9MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.93ms. Allocated memory is still 130.0MB. Free memory was 97.8MB in the beginning and 95.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.69ms. Allocated memory is still 130.0MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.55ms. Allocated memory is still 130.0MB. Free memory was 93.8MB in the beginning and 76.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11057.33ms. Allocated memory was 130.0MB in the beginning and 249.6MB in the end (delta: 119.5MB). Free memory was 75.6MB in the beginning and 160.5MB in the end (delta: -84.9MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Witness Printer took 71.73ms. Allocated memory is still 249.6MB. Free memory was 160.5MB in the beginning and 156.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 157 PlacesBefore, 54 PlacesAfterwards, 161 TransitionsBefore, 57 TransitionsAfterwards, 5478 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 1 ChoiceCompositions, 159 TotalNumberOfCompositions, 16334 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5131, independent: 4665, independent conditional: 0, independent unconditional: 4665, dependent: 466, dependent conditional: 0, dependent unconditional: 466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3040, independent: 2942, independent conditional: 0, independent unconditional: 2942, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5131, independent: 1723, independent conditional: 0, independent unconditional: 1723, dependent: 368, dependent conditional: 0, dependent unconditional: 368, unknown: 3040, unknown conditional: 0, unknown unconditional: 3040] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: 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: 704]: 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, 195 locations, 10 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: 10.9s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 929 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 530 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 220 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1629 IncrementalHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 220 mSolverCounterUnsat, 58 mSDtfsCounter, 1629 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=431occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 1133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:23:26,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4273924-6a43-4729-bbe8-1e0d6e28029a/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