./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.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_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/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_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/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_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:08:55,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:08:55,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:08:55,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:08:55,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:08:55,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:08:55,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:08:55,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:08:55,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:08:55,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:08:55,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:08:55,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:08:55,566 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:08:55,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:08:55,567 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:08:55,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:08:55,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:08:55,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:08:55,569 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:08:55,570 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:08:55,571 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:08:55,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:08:55,572 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:08:55,572 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:08:55,573 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:08:55,574 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:08:55,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:08:55,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:08:55,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:08:55,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:55,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:08:55,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:08:55,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:08:55,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:08:55,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:08:55,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:08:55,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:08:55,580 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:08:55,580 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_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 [2023-11-06 22:08:55,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:08:55,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:08:55,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:08:55,911 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:08:55,912 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:08:55,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 22:08:59,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:08:59,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:08:59,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 22:08:59,452 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/data/70d4d138c/034eae6ed2d94256ac1e07d27f8f3457/FLAGdcc5aa4ce [2023-11-06 22:08:59,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/data/70d4d138c/034eae6ed2d94256ac1e07d27f8f3457 [2023-11-06 22:08:59,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:08:59,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:08:59,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:59,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:08:59,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:08:59,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:59" (1/1) ... [2023-11-06 22:08:59,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63dde712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:59, skipping insertion in model container [2023-11-06 22:08:59,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:59" (1/1) ... [2023-11-06 22:08:59,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:08:59,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:59,932 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:09:00,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:09:00,062 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:09:00,062 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:09:00,070 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:09:00,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00 WrapperNode [2023-11-06 22:09:00,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:09:00,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:09:00,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:09:00,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:09:00,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,148 INFO L138 Inliner]: procedures = 177, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 85 [2023-11-06 22:09:00,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:09:00,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:09:00,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:09:00,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:09:00,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:09:00,213 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:09:00,214 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:09:00,214 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:09:00,215 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (1/1) ... [2023-11-06 22:09:00,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:09:00,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:09:00,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:09:00,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:09:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:09:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:09:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:09:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:09:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:09:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:09:00,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:09:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:09:00,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:09:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:09:00,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:09:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 22:09:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 22:09:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:09:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:09:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:09:00,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:09:00,316 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 22:09:00,471 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:09:00,472 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:09:00,736 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:09:00,745 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:09:00,745 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:09:00,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:09:00 BoogieIcfgContainer [2023-11-06 22:09:00,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:09:00,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:09:00,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:09:00,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:09:00,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:59" (1/3) ... [2023-11-06 22:09:00,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df6e569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:09:00, skipping insertion in model container [2023-11-06 22:09:00,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:00" (2/3) ... [2023-11-06 22:09:00,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df6e569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:09:00, skipping insertion in model container [2023-11-06 22:09:00,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:09:00" (3/3) ... [2023-11-06 22:09:00,767 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 22:09:00,787 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:09:00,788 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-06 22:09:00,788 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:09:00,868 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:09:00,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 120 transitions, 256 flow [2023-11-06 22:09:00,996 INFO L124 PetriNetUnfolderBase]: 3/116 cut-off events. [2023-11-06 22:09:00,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:09:01,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 116 events. 3/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2023-11-06 22:09:01,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 120 transitions, 256 flow [2023-11-06 22:09:01,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 111 transitions, 234 flow [2023-11-06 22:09:01,015 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:09:01,025 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 111 transitions, 234 flow [2023-11-06 22:09:01,028 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 111 transitions, 234 flow [2023-11-06 22:09:01,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 111 transitions, 234 flow [2023-11-06 22:09:01,064 INFO L124 PetriNetUnfolderBase]: 3/111 cut-off events. [2023-11-06 22:09:01,064 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:09:01,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 3/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-11-06 22:09:01,068 INFO L119 LiptonReduction]: Number of co-enabled transitions 2602 [2023-11-06 22:09:04,831 INFO L134 LiptonReduction]: Checked pairs total: 4589 [2023-11-06 22:09:04,831 INFO L136 LiptonReduction]: Total number of compositions: 115 [2023-11-06 22:09:04,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:09:04,857 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;@1e5f144, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:09:04,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-06 22:09:04,860 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:09:04,860 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-06 22:09:04,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:09:04,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:04,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:09:04,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:04,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:04,868 INFO L85 PathProgramCache]: Analyzing trace with hash 420, now seen corresponding path program 1 times [2023-11-06 22:09:04,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:04,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718450808] [2023-11-06 22:09:04,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:04,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:05,009 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 22:09:05,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:05,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718450808] [2023-11-06 22:09:05,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718450808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:05,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:05,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:09:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495813078] [2023-11-06 22:09:05,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:05,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:09:05,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:05,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:09:05,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:09:05,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 235 [2023-11-06 22:09:05,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 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 22:09:05,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:05,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 235 [2023-11-06 22:09:05,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:05,318 INFO L124 PetriNetUnfolderBase]: 920/1334 cut-off events. [2023-11-06 22:09:05,318 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 22:09:05,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2743 conditions, 1334 events. 920/1334 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5690 event pairs, 920 based on Foata normal form. 0/1243 useless extension candidates. Maximal degree in co-relation 2731. Up to 1324 conditions per place. [2023-11-06 22:09:05,341 INFO L140 encePairwiseOnDemand]: 226/235 looper letters, 19 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-11-06 22:09:05,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 21 transitions, 92 flow [2023-11-06 22:09:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:09:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:09:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2023-11-06 22:09:05,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5361702127659574 [2023-11-06 22:09:05,365 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 252 transitions. [2023-11-06 22:09:05,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 252 transitions. [2023-11-06 22:09:05,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:05,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 252 transitions. [2023-11-06 22:09:05,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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 22:09:05,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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 22:09:05,383 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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 22:09:05,385 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 72 flow. Second operand 2 states and 252 transitions. [2023-11-06 22:09:05,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 21 transitions, 92 flow [2023-11-06 22:09:05,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 21 transitions, 88 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:09:05,393 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 50 flow [2023-11-06 22:09:05,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-11-06 22:09:05,402 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -11 predicate places. [2023-11-06 22:09:05,403 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 50 flow [2023-11-06 22:09:05,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 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 22:09:05,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:05,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:05,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:09:05,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:05,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:05,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1140716052, now seen corresponding path program 1 times [2023-11-06 22:09:05,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:05,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197074520] [2023-11-06 22:09:05,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:05,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:06,022 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 22:09:06,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:06,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197074520] [2023-11-06 22:09:06,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197074520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:06,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:06,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:09:06,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802481] [2023-11-06 22:09:06,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:06,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:06,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:06,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:06,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:06,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 235 [2023-11-06 22:09:06,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 22:09:06,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:06,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 235 [2023-11-06 22:09:06,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:06,469 INFO L124 PetriNetUnfolderBase]: 1950/2781 cut-off events. [2023-11-06 22:09:06,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:09:06,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5695 conditions, 2781 events. 1950/2781 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 12514 event pairs, 612 based on Foata normal form. 0/2646 useless extension candidates. Maximal degree in co-relation 5692. Up to 2317 conditions per place. [2023-11-06 22:09:06,494 INFO L140 encePairwiseOnDemand]: 228/235 looper letters, 33 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2023-11-06 22:09:06,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 170 flow [2023-11-06 22:09:06,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:06,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:09:06,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2023-11-06 22:09:06,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49929078014184397 [2023-11-06 22:09:06,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 352 transitions. [2023-11-06 22:09:06,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions. [2023-11-06 22:09:06,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:06,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions. [2023-11-06 22:09:06,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 22:09:06,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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 22:09:06,513 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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 22:09:06,514 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 50 flow. Second operand 3 states and 352 transitions. [2023-11-06 22:09:06,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 170 flow [2023-11-06 22:09:06,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:09:06,517 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 96 flow [2023-11-06 22:09:06,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-11-06 22:09:06,519 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -7 predicate places. [2023-11-06 22:09:06,519 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 96 flow [2023-11-06 22:09:06,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 22:09:06,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:06,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:06,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:09:06,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:06,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:06,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1140716058, now seen corresponding path program 1 times [2023-11-06 22:09:06,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:06,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902104300] [2023-11-06 22:09:06,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:06,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:07,239 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 22:09:07,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:07,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902104300] [2023-11-06 22:09:07,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902104300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:07,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:07,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:09:07,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240570060] [2023-11-06 22:09:07,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:07,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:09:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:07,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:09:07,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:09:07,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 235 [2023-11-06 22:09:07,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 96 flow. Second operand has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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 22:09:07,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:07,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 235 [2023-11-06 22:09:07,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:07,909 INFO L124 PetriNetUnfolderBase]: 1278/1979 cut-off events. [2023-11-06 22:09:07,910 INFO L125 PetriNetUnfolderBase]: For 688/688 co-relation queries the response was YES. [2023-11-06 22:09:07,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4793 conditions, 1979 events. 1278/1979 cut-off events. For 688/688 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9412 event pairs, 213 based on Foata normal form. 45/2000 useless extension candidates. Maximal degree in co-relation 4788. Up to 1442 conditions per place. [2023-11-06 22:09:07,933 INFO L140 encePairwiseOnDemand]: 228/235 looper letters, 34 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2023-11-06 22:09:07,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 46 transitions, 242 flow [2023-11-06 22:09:07,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:09:07,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:09:07,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 605 transitions. [2023-11-06 22:09:07,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42907801418439717 [2023-11-06 22:09:07,937 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 605 transitions. [2023-11-06 22:09:07,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 605 transitions. [2023-11-06 22:09:07,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:07,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 605 transitions. [2023-11-06 22:09:07,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.83333333333333) internal successors, (605), 6 states have internal predecessors, (605), 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 22:09:07,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 235.0) internal successors, (1645), 7 states have internal predecessors, (1645), 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 22:09:07,945 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 235.0) internal successors, (1645), 7 states have internal predecessors, (1645), 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 22:09:07,946 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 96 flow. Second operand 6 states and 605 transitions. [2023-11-06 22:09:07,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 46 transitions, 242 flow [2023-11-06 22:09:07,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:09:07,959 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 119 flow [2023-11-06 22:09:07,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=119, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-11-06 22:09:07,961 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -2 predicate places. [2023-11-06 22:09:07,961 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 119 flow [2023-11-06 22:09:07,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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 22:09:07,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:07,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:07,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:09:07,963 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:07,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:07,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1002457459, now seen corresponding path program 1 times [2023-11-06 22:09:07,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:07,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576265966] [2023-11-06 22:09:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:07,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:08,084 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 22:09:08,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:08,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576265966] [2023-11-06 22:09:08,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576265966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:08,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:08,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:09:08,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901840825] [2023-11-06 22:09:08,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:08,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:08,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:08,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:08,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:08,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 235 [2023-11-06 22:09:08,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:08,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:08,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 235 [2023-11-06 22:09:08,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:08,377 INFO L124 PetriNetUnfolderBase]: 1246/1930 cut-off events. [2023-11-06 22:09:08,377 INFO L125 PetriNetUnfolderBase]: For 617/617 co-relation queries the response was YES. [2023-11-06 22:09:08,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4830 conditions, 1930 events. 1246/1930 cut-off events. For 617/617 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9303 event pairs, 422 based on Foata normal form. 0/1807 useless extension candidates. Maximal degree in co-relation 4823. Up to 1330 conditions per place. [2023-11-06 22:09:08,398 INFO L140 encePairwiseOnDemand]: 232/235 looper letters, 35 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2023-11-06 22:09:08,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 244 flow [2023-11-06 22:09:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:09:08,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2023-11-06 22:09:08,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5163120567375886 [2023-11-06 22:09:08,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2023-11-06 22:09:08,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2023-11-06 22:09:08,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:08,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2023-11-06 22:09:08,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 22:09:08,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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 22:09:08,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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 22:09:08,406 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 119 flow. Second operand 3 states and 364 transitions. [2023-11-06 22:09:08,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 244 flow [2023-11-06 22:09:08,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 232 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:09:08,409 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 121 flow [2023-11-06 22:09:08,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-11-06 22:09:08,410 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -2 predicate places. [2023-11-06 22:09:08,411 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 121 flow [2023-11-06 22:09:08,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:08,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:08,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:08,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:09:08,412 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:08,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:08,413 INFO L85 PathProgramCache]: Analyzing trace with hash 949056865, now seen corresponding path program 1 times [2023-11-06 22:09:08,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:08,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479575266] [2023-11-06 22:09:08,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:08,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:08,980 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 22:09:08,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:08,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479575266] [2023-11-06 22:09:08,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479575266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:08,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:08,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:09:08,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462373066] [2023-11-06 22:09:08,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:08,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:09:08,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:08,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:09:08,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:09:09,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 235 [2023-11-06 22:09:09,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 121 flow. Second operand has 7 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 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 22:09:09,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:09,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 235 [2023-11-06 22:09:09,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:10,038 INFO L124 PetriNetUnfolderBase]: 1685/2529 cut-off events. [2023-11-06 22:09:10,038 INFO L125 PetriNetUnfolderBase]: For 2387/2399 co-relation queries the response was YES. [2023-11-06 22:09:10,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6714 conditions, 2529 events. 1685/2529 cut-off events. For 2387/2399 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 13216 event pairs, 975 based on Foata normal form. 144/2486 useless extension candidates. Maximal degree in co-relation 6706. Up to 1612 conditions per place. [2023-11-06 22:09:10,058 INFO L140 encePairwiseOnDemand]: 227/235 looper letters, 29 selfloop transitions, 6 changer transitions 21/60 dead transitions. [2023-11-06 22:09:10,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 349 flow [2023-11-06 22:09:10,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:09:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:09:10,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 764 transitions. [2023-11-06 22:09:10,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40638297872340423 [2023-11-06 22:09:10,062 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 764 transitions. [2023-11-06 22:09:10,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 764 transitions. [2023-11-06 22:09:10,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:10,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 764 transitions. [2023-11-06 22:09:10,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 95.5) internal successors, (764), 8 states have internal predecessors, (764), 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 22:09:10,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 235.0) internal successors, (2115), 9 states have internal predecessors, (2115), 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 22:09:10,072 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 235.0) internal successors, (2115), 9 states have internal predecessors, (2115), 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 22:09:10,072 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 121 flow. Second operand 8 states and 764 transitions. [2023-11-06 22:09:10,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 349 flow [2023-11-06 22:09:10,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 331 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:09:10,077 INFO L231 Difference]: Finished difference. Result has 50 places, 32 transitions, 165 flow [2023-11-06 22:09:10,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=165, PETRI_PLACES=50, PETRI_TRANSITIONS=32} [2023-11-06 22:09:10,081 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2023-11-06 22:09:10,081 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 32 transitions, 165 flow [2023-11-06 22:09:10,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 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 22:09:10,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:10,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:10,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:09:10,082 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:10,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:10,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1002421195, now seen corresponding path program 2 times [2023-11-06 22:09:10,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:10,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971608939] [2023-11-06 22:09:10,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:10,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:10,795 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 22:09:10,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:10,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971608939] [2023-11-06 22:09:10,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971608939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:10,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:10,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:09:10,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038547799] [2023-11-06 22:09:10,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:10,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:09:10,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:10,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:09:10,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:09:11,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 235 [2023-11-06 22:09:11,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 32 transitions, 165 flow. Second operand has 7 states, 7 states have (on average 89.57142857142857) internal successors, (627), 7 states have internal predecessors, (627), 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 22:09:11,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:11,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 235 [2023-11-06 22:09:11,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:11,831 INFO L124 PetriNetUnfolderBase]: 1235/1911 cut-off events. [2023-11-06 22:09:11,832 INFO L125 PetriNetUnfolderBase]: For 3123/3131 co-relation queries the response was YES. [2023-11-06 22:09:11,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5239 conditions, 1911 events. 1235/1911 cut-off events. For 3123/3131 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 9794 event pairs, 545 based on Foata normal form. 177/1960 useless extension candidates. Maximal degree in co-relation 5226. Up to 1077 conditions per place. [2023-11-06 22:09:11,850 INFO L140 encePairwiseOnDemand]: 227/235 looper letters, 34 selfloop transitions, 7 changer transitions 18/63 dead transitions. [2023-11-06 22:09:11,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 381 flow [2023-11-06 22:09:11,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:09:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:09:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 761 transitions. [2023-11-06 22:09:11,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4047872340425532 [2023-11-06 22:09:11,855 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 761 transitions. [2023-11-06 22:09:11,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 761 transitions. [2023-11-06 22:09:11,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:11,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 761 transitions. [2023-11-06 22:09:11,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 95.125) internal successors, (761), 8 states have internal predecessors, (761), 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 22:09:11,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 235.0) internal successors, (2115), 9 states have internal predecessors, (2115), 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 22:09:11,864 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 235.0) internal successors, (2115), 9 states have internal predecessors, (2115), 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 22:09:11,864 INFO L175 Difference]: Start difference. First operand has 50 places, 32 transitions, 165 flow. Second operand 8 states and 761 transitions. [2023-11-06 22:09:11,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 381 flow [2023-11-06 22:09:11,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 63 transitions, 371 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-06 22:09:11,876 INFO L231 Difference]: Finished difference. Result has 53 places, 32 transitions, 183 flow [2023-11-06 22:09:11,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=183, PETRI_PLACES=53, PETRI_TRANSITIONS=32} [2023-11-06 22:09:11,879 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2023-11-06 22:09:11,882 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 32 transitions, 183 flow [2023-11-06 22:09:11,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.57142857142857) internal successors, (627), 7 states have internal predecessors, (627), 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 22:09:11,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:11,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:11,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:09:11,884 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:11,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:11,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2011645322, now seen corresponding path program 1 times [2023-11-06 22:09:11,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:11,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681929877] [2023-11-06 22:09:11,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:11,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:12,350 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 22:09:12,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:12,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681929877] [2023-11-06 22:09:12,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681929877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:12,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:12,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:09:12,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483120858] [2023-11-06 22:09:12,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:12,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:09:12,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:12,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:09:12,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:09:12,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 235 [2023-11-06 22:09:12,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 32 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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 22:09:12,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:12,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 235 [2023-11-06 22:09:12,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:12,787 INFO L124 PetriNetUnfolderBase]: 577/903 cut-off events. [2023-11-06 22:09:12,788 INFO L125 PetriNetUnfolderBase]: For 2034/2034 co-relation queries the response was YES. [2023-11-06 22:09:12,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2713 conditions, 903 events. 577/903 cut-off events. For 2034/2034 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3741 event pairs, 240 based on Foata normal form. 64/927 useless extension candidates. Maximal degree in co-relation 2699. Up to 701 conditions per place. [2023-11-06 22:09:12,798 INFO L140 encePairwiseOnDemand]: 230/235 looper letters, 30 selfloop transitions, 7 changer transitions 0/39 dead transitions. [2023-11-06 22:09:12,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 39 transitions, 271 flow [2023-11-06 22:09:12,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:09:12,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:09:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 583 transitions. [2023-11-06 22:09:12,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4134751773049645 [2023-11-06 22:09:12,802 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 583 transitions. [2023-11-06 22:09:12,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 583 transitions. [2023-11-06 22:09:12,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:12,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 583 transitions. [2023-11-06 22:09:12,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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 22:09:12,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 235.0) internal successors, (1645), 7 states have internal predecessors, (1645), 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 22:09:12,808 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 235.0) internal successors, (1645), 7 states have internal predecessors, (1645), 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 22:09:12,809 INFO L175 Difference]: Start difference. First operand has 53 places, 32 transitions, 183 flow. Second operand 6 states and 583 transitions. [2023-11-06 22:09:12,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 39 transitions, 271 flow [2023-11-06 22:09:12,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 39 transitions, 249 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-11-06 22:09:12,815 INFO L231 Difference]: Finished difference. Result has 48 places, 29 transitions, 157 flow [2023-11-06 22:09:12,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=157, PETRI_PLACES=48, PETRI_TRANSITIONS=29} [2023-11-06 22:09:12,816 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2023-11-06 22:09:12,816 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 29 transitions, 157 flow [2023-11-06 22:09:12,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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 22:09:12,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:12,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:12,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:09:12,818 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:12,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:12,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1048588837, now seen corresponding path program 1 times [2023-11-06 22:09:12,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:12,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949915027] [2023-11-06 22:09:12,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:12,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:12,954 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 22:09:12,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:12,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949915027] [2023-11-06 22:09:12,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949915027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:12,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:12,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:09:12,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468549404] [2023-11-06 22:09:12,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:12,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:09:12,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:12,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:09:12,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:09:12,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 235 [2023-11-06 22:09:12,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 29 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 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 22:09:12,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:12,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 235 [2023-11-06 22:09:12,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:13,184 INFO L124 PetriNetUnfolderBase]: 933/1398 cut-off events. [2023-11-06 22:09:13,184 INFO L125 PetriNetUnfolderBase]: For 1303/1303 co-relation queries the response was YES. [2023-11-06 22:09:13,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3875 conditions, 1398 events. 933/1398 cut-off events. For 1303/1303 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5466 event pairs, 245 based on Foata normal form. 54/1452 useless extension candidates. Maximal degree in co-relation 3864. Up to 469 conditions per place. [2023-11-06 22:09:13,193 INFO L140 encePairwiseOnDemand]: 231/235 looper letters, 36 selfloop transitions, 4 changer transitions 9/49 dead transitions. [2023-11-06 22:09:13,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 49 transitions, 331 flow [2023-11-06 22:09:13,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:09:13,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:09:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2023-11-06 22:09:13,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4765957446808511 [2023-11-06 22:09:13,201 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 448 transitions. [2023-11-06 22:09:13,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 448 transitions. [2023-11-06 22:09:13,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:13,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 448 transitions. [2023-11-06 22:09:13,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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 22:09:13,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 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 22:09:13,208 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 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 22:09:13,208 INFO L175 Difference]: Start difference. First operand has 48 places, 29 transitions, 157 flow. Second operand 4 states and 448 transitions. [2023-11-06 22:09:13,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 49 transitions, 331 flow [2023-11-06 22:09:13,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 320 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:09:13,217 INFO L231 Difference]: Finished difference. Result has 49 places, 28 transitions, 155 flow [2023-11-06 22:09:13,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2023-11-06 22:09:13,218 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2023-11-06 22:09:13,218 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 155 flow [2023-11-06 22:09:13,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 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 22:09:13,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:13,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:13,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:09:13,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:13,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:13,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1734584016, now seen corresponding path program 1 times [2023-11-06 22:09:13,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:13,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758327815] [2023-11-06 22:09:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:13,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:13,366 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 22:09:13,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:13,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758327815] [2023-11-06 22:09:13,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758327815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:13,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:13,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:09:13,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561409648] [2023-11-06 22:09:13,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:13,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:09:13,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:13,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:09:13,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:09:13,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 235 [2023-11-06 22:09:13,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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 22:09:13,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:13,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 235 [2023-11-06 22:09:13,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:13,521 INFO L124 PetriNetUnfolderBase]: 378/616 cut-off events. [2023-11-06 22:09:13,522 INFO L125 PetriNetUnfolderBase]: For 1770/1785 co-relation queries the response was YES. [2023-11-06 22:09:13,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1925 conditions, 616 events. 378/616 cut-off events. For 1770/1785 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2675 event pairs, 103 based on Foata normal form. 35/604 useless extension candidates. Maximal degree in co-relation 1912. Up to 391 conditions per place. [2023-11-06 22:09:13,534 INFO L140 encePairwiseOnDemand]: 228/235 looper letters, 52 selfloop transitions, 9 changer transitions 2/65 dead transitions. [2023-11-06 22:09:13,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 65 transitions, 469 flow [2023-11-06 22:09:13,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:09:13,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:09:13,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 574 transitions. [2023-11-06 22:09:13,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48851063829787233 [2023-11-06 22:09:13,537 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 574 transitions. [2023-11-06 22:09:13,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 574 transitions. [2023-11-06 22:09:13,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:13,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 574 transitions. [2023-11-06 22:09:13,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 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 22:09:13,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 235.0) internal successors, (1410), 6 states have internal predecessors, (1410), 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 22:09:13,545 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 235.0) internal successors, (1410), 6 states have internal predecessors, (1410), 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 22:09:13,545 INFO L175 Difference]: Start difference. First operand has 49 places, 28 transitions, 155 flow. Second operand 5 states and 574 transitions. [2023-11-06 22:09:13,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 65 transitions, 469 flow [2023-11-06 22:09:13,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 65 transitions, 425 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-11-06 22:09:13,550 INFO L231 Difference]: Finished difference. Result has 51 places, 36 transitions, 207 flow [2023-11-06 22:09:13,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=207, PETRI_PLACES=51, PETRI_TRANSITIONS=36} [2023-11-06 22:09:13,551 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2023-11-06 22:09:13,551 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 36 transitions, 207 flow [2023-11-06 22:09:13,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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 22:09:13,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:13,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:13,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:09:13,553 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:13,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1847375325, now seen corresponding path program 1 times [2023-11-06 22:09:13,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:13,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590697912] [2023-11-06 22:09:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:13,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:13,690 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 22:09:13,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:13,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590697912] [2023-11-06 22:09:13,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590697912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:13,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:13,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:09:13,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600467850] [2023-11-06 22:09:13,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:13,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:09:13,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:13,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:09:13,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:09:13,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 235 [2023-11-06 22:09:13,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 36 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 22:09:13,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:13,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 235 [2023-11-06 22:09:13,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:13,931 INFO L124 PetriNetUnfolderBase]: 628/1020 cut-off events. [2023-11-06 22:09:13,932 INFO L125 PetriNetUnfolderBase]: For 1661/1661 co-relation queries the response was YES. [2023-11-06 22:09:13,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3956 conditions, 1020 events. 628/1020 cut-off events. For 1661/1661 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4433 event pairs, 98 based on Foata normal form. 22/1042 useless extension candidates. Maximal degree in co-relation 3942. Up to 601 conditions per place. [2023-11-06 22:09:13,942 INFO L140 encePairwiseOnDemand]: 229/235 looper letters, 47 selfloop transitions, 8 changer transitions 21/76 dead transitions. [2023-11-06 22:09:13,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 76 transitions, 570 flow [2023-11-06 22:09:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:09:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:09:13,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 657 transitions. [2023-11-06 22:09:13,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46595744680851064 [2023-11-06 22:09:13,946 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 657 transitions. [2023-11-06 22:09:13,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 657 transitions. [2023-11-06 22:09:13,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:13,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 657 transitions. [2023-11-06 22:09:13,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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 22:09:13,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 235.0) internal successors, (1645), 7 states have internal predecessors, (1645), 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 22:09:13,954 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 235.0) internal successors, (1645), 7 states have internal predecessors, (1645), 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 22:09:13,954 INFO L175 Difference]: Start difference. First operand has 51 places, 36 transitions, 207 flow. Second operand 6 states and 657 transitions. [2023-11-06 22:09:13,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 76 transitions, 570 flow [2023-11-06 22:09:13,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 556 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:09:13,961 INFO L231 Difference]: Finished difference. Result has 57 places, 35 transitions, 218 flow [2023-11-06 22:09:13,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=57, PETRI_TRANSITIONS=35} [2023-11-06 22:09:13,963 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2023-11-06 22:09:13,963 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 35 transitions, 218 flow [2023-11-06 22:09:13,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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 22:09:13,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:13,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:13,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:09:13,964 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:13,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:13,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1969320876, now seen corresponding path program 1 times [2023-11-06 22:09:13,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:13,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987280546] [2023-11-06 22:09:13,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:13,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:14,079 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 22:09:14,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:14,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987280546] [2023-11-06 22:09:14,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987280546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:14,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:14,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:09:14,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031448893] [2023-11-06 22:09:14,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:14,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:09:14,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:14,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:09:14,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:09:14,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 235 [2023-11-06 22:09:14,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 35 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 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 22:09:14,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:14,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 235 [2023-11-06 22:09:14,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:14,258 INFO L124 PetriNetUnfolderBase]: 350/620 cut-off events. [2023-11-06 22:09:14,258 INFO L125 PetriNetUnfolderBase]: For 1671/1767 co-relation queries the response was YES. [2023-11-06 22:09:14,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 620 events. 350/620 cut-off events. For 1671/1767 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2981 event pairs, 38 based on Foata normal form. 47/639 useless extension candidates. Maximal degree in co-relation 2485. Up to 421 conditions per place. [2023-11-06 22:09:14,263 INFO L140 encePairwiseOnDemand]: 228/235 looper letters, 65 selfloop transitions, 14 changer transitions 2/84 dead transitions. [2023-11-06 22:09:14,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 84 transitions, 701 flow [2023-11-06 22:09:14,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:09:14,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:09:14,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 689 transitions. [2023-11-06 22:09:14,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48865248226950353 [2023-11-06 22:09:14,267 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 689 transitions. [2023-11-06 22:09:14,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 689 transitions. [2023-11-06 22:09:14,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:14,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 689 transitions. [2023-11-06 22:09:14,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.83333333333333) internal successors, (689), 6 states have internal predecessors, (689), 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 22:09:14,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 235.0) internal successors, (1645), 7 states have internal predecessors, (1645), 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 22:09:14,274 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 235.0) internal successors, (1645), 7 states have internal predecessors, (1645), 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 22:09:14,274 INFO L175 Difference]: Start difference. First operand has 57 places, 35 transitions, 218 flow. Second operand 6 states and 689 transitions. [2023-11-06 22:09:14,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 84 transitions, 701 flow [2023-11-06 22:09:14,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 84 transitions, 683 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-06 22:09:14,281 INFO L231 Difference]: Finished difference. Result has 61 places, 44 transitions, 331 flow [2023-11-06 22:09:14,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2023-11-06 22:09:14,282 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2023-11-06 22:09:14,282 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 331 flow [2023-11-06 22:09:14,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 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 22:09:14,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:14,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:14,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:09:14,284 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:14,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 761170003, now seen corresponding path program 1 times [2023-11-06 22:09:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:14,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727359467] [2023-11-06 22:09:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:14,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:14,434 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 22:09:14,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:14,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727359467] [2023-11-06 22:09:14,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727359467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:14,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:14,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:09:14,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876564285] [2023-11-06 22:09:14,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:14,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:09:14,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:09:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:09:14,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 235 [2023-11-06 22:09:14,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 331 flow. Second operand has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 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 22:09:14,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:14,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 235 [2023-11-06 22:09:14,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:14,666 INFO L124 PetriNetUnfolderBase]: 323/586 cut-off events. [2023-11-06 22:09:14,666 INFO L125 PetriNetUnfolderBase]: For 1939/2113 co-relation queries the response was YES. [2023-11-06 22:09:14,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3067 conditions, 586 events. 323/586 cut-off events. For 1939/2113 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2863 event pairs, 6 based on Foata normal form. 64/623 useless extension candidates. Maximal degree in co-relation 3048. Up to 408 conditions per place. [2023-11-06 22:09:14,670 INFO L140 encePairwiseOnDemand]: 228/235 looper letters, 64 selfloop transitions, 23 changer transitions 7/97 dead transitions. [2023-11-06 22:09:14,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 97 transitions, 905 flow [2023-11-06 22:09:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:09:14,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:09:14,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 912 transitions. [2023-11-06 22:09:14,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4851063829787234 [2023-11-06 22:09:14,675 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 912 transitions. [2023-11-06 22:09:14,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 912 transitions. [2023-11-06 22:09:14,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:14,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 912 transitions. [2023-11-06 22:09:14,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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 22:09:14,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 235.0) internal successors, (2115), 9 states have internal predecessors, (2115), 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 22:09:14,684 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 235.0) internal successors, (2115), 9 states have internal predecessors, (2115), 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 22:09:14,684 INFO L175 Difference]: Start difference. First operand has 61 places, 44 transitions, 331 flow. Second operand 8 states and 912 transitions. [2023-11-06 22:09:14,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 97 transitions, 905 flow [2023-11-06 22:09:14,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 97 transitions, 861 flow, removed 17 selfloop flow, removed 2 redundant places. [2023-11-06 22:09:14,695 INFO L231 Difference]: Finished difference. Result has 69 places, 53 transitions, 455 flow [2023-11-06 22:09:14,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=455, PETRI_PLACES=69, PETRI_TRANSITIONS=53} [2023-11-06 22:09:14,697 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 27 predicate places. [2023-11-06 22:09:14,697 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 53 transitions, 455 flow [2023-11-06 22:09:14,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 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 22:09:14,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:14,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:14,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:09:14,698 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:14,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:14,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2331270, now seen corresponding path program 1 times [2023-11-06 22:09:14,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:14,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875325412] [2023-11-06 22:09:14,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:14,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:14,836 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 22:09:14,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:14,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875325412] [2023-11-06 22:09:14,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875325412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:14,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:14,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:09:14,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203600490] [2023-11-06 22:09:14,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:14,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:09:14,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:14,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:09:14,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:09:14,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 235 [2023-11-06 22:09:14,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 53 transitions, 455 flow. Second operand has 7 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 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 22:09:14,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:14,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 235 [2023-11-06 22:09:14,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:15,062 INFO L124 PetriNetUnfolderBase]: 302/555 cut-off events. [2023-11-06 22:09:15,062 INFO L125 PetriNetUnfolderBase]: For 2451/2552 co-relation queries the response was YES. [2023-11-06 22:09:15,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3065 conditions, 555 events. 302/555 cut-off events. For 2451/2552 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2706 event pairs, 2 based on Foata normal form. 36/565 useless extension candidates. Maximal degree in co-relation 3043. Up to 289 conditions per place. [2023-11-06 22:09:15,065 INFO L140 encePairwiseOnDemand]: 228/235 looper letters, 33 selfloop transitions, 17 changer transitions 46/98 dead transitions. [2023-11-06 22:09:15,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 98 transitions, 961 flow [2023-11-06 22:09:15,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:09:15,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:09:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1123 transitions. [2023-11-06 22:09:15,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4778723404255319 [2023-11-06 22:09:15,071 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1123 transitions. [2023-11-06 22:09:15,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1123 transitions. [2023-11-06 22:09:15,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:15,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1123 transitions. [2023-11-06 22:09:15,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 112.3) internal successors, (1123), 10 states have internal predecessors, (1123), 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 22:09:15,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 235.0) internal successors, (2585), 11 states have internal predecessors, (2585), 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 22:09:15,081 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 235.0) internal successors, (2585), 11 states have internal predecessors, (2585), 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 22:09:15,081 INFO L175 Difference]: Start difference. First operand has 69 places, 53 transitions, 455 flow. Second operand 10 states and 1123 transitions. [2023-11-06 22:09:15,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 98 transitions, 961 flow [2023-11-06 22:09:15,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 98 transitions, 856 flow, removed 43 selfloop flow, removed 4 redundant places. [2023-11-06 22:09:15,110 INFO L231 Difference]: Finished difference. Result has 77 places, 38 transitions, 300 flow [2023-11-06 22:09:15,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=300, PETRI_PLACES=77, PETRI_TRANSITIONS=38} [2023-11-06 22:09:15,111 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 35 predicate places. [2023-11-06 22:09:15,111 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 38 transitions, 300 flow [2023-11-06 22:09:15,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 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 22:09:15,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:09:15,112 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 22:09:15,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:09:15,112 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 22:09:15,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:15,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1977717433, now seen corresponding path program 1 times [2023-11-06 22:09:15,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:15,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346499340] [2023-11-06 22:09:15,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:15,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:15,253 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 22:09:15,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:15,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346499340] [2023-11-06 22:09:15,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346499340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:15,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:15,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:09:15,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794683053] [2023-11-06 22:09:15,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:15,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:09:15,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:15,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:09:15,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:09:15,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 235 [2023-11-06 22:09:15,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 38 transitions, 300 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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 22:09:15,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:09:15,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 235 [2023-11-06 22:09:15,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:09:15,327 INFO L124 PetriNetUnfolderBase]: 80/161 cut-off events. [2023-11-06 22:09:15,327 INFO L125 PetriNetUnfolderBase]: For 512/512 co-relation queries the response was YES. [2023-11-06 22:09:15,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 161 events. 80/161 cut-off events. For 512/512 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 452 event pairs, 25 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 751. Up to 94 conditions per place. [2023-11-06 22:09:15,328 INFO L140 encePairwiseOnDemand]: 232/235 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2023-11-06 22:09:15,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 48 transitions, 452 flow [2023-11-06 22:09:15,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:09:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:09:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2023-11-06 22:09:15,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48723404255319147 [2023-11-06 22:09:15,331 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 458 transitions. [2023-11-06 22:09:15,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 458 transitions. [2023-11-06 22:09:15,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:09:15,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 458 transitions. [2023-11-06 22:09:15,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 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 22:09:15,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 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 22:09:15,335 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 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 22:09:15,336 INFO L175 Difference]: Start difference. First operand has 77 places, 38 transitions, 300 flow. Second operand 4 states and 458 transitions. [2023-11-06 22:09:15,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 48 transitions, 452 flow [2023-11-06 22:09:15,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 48 transitions, 359 flow, removed 18 selfloop flow, removed 9 redundant places. [2023-11-06 22:09:15,339 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2023-11-06 22:09:15,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2023-11-06 22:09:15,340 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2023-11-06 22:09:15,340 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2023-11-06 22:09:15,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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 22:09:15,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2023-11-06 22:09:15,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2023-11-06 22:09:15,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2023-11-06 22:09:15,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2023-11-06 22:09:15,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2023-11-06 22:09:15,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2023-11-06 22:09:15,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2023-11-06 22:09:15,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2023-11-06 22:09:15,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (5 of 14 remaining) [2023-11-06 22:09:15,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (4 of 14 remaining) [2023-11-06 22:09:15,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2023-11-06 22:09:15,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 14 remaining) [2023-11-06 22:09:15,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 14 remaining) [2023-11-06 22:09:15,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 14 remaining) [2023-11-06 22:09:15,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:09:15,346 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:15,350 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:09:15,350 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:09:15,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:09:15 BasicIcfg [2023-11-06 22:09:15,355 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:09:15,356 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:09:15,356 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:09:15,356 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:09:15,356 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:09:00" (3/4) ... [2023-11-06 22:09:15,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:09:15,362 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:09:15,362 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:09:15,363 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 22:09:15,363 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-06 22:09:15,370 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-06 22:09:15,370 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:09:15,370 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:09:15,370 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:09:15,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:09:15,432 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:09:15,432 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:09:15,432 INFO L158 Benchmark]: Toolchain (without parser) took 15958.39ms. Allocated memory was 182.5MB in the beginning and 283.1MB in the end (delta: 100.7MB). Free memory was 135.9MB in the beginning and 101.6MB in the end (delta: 34.3MB). Peak memory consumption was 136.6MB. Max. memory is 16.1GB. [2023-11-06 22:09:15,433 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 182.5MB. Free memory is still 158.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:09:15,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.59ms. Allocated memory is still 182.5MB. Free memory was 135.5MB in the beginning and 114.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 22:09:15,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.03ms. Allocated memory is still 182.5MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:09:15,434 INFO L158 Benchmark]: Boogie Preprocessor took 62.87ms. Allocated memory is still 182.5MB. Free memory was 112.8MB in the beginning and 111.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:09:15,434 INFO L158 Benchmark]: RCFGBuilder took 540.41ms. Allocated memory is still 182.5MB. Free memory was 111.2MB in the beginning and 94.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:09:15,434 INFO L158 Benchmark]: TraceAbstraction took 14598.13ms. Allocated memory was 182.5MB in the beginning and 283.1MB in the end (delta: 100.7MB). Free memory was 94.0MB in the beginning and 104.8MB in the end (delta: -10.8MB). Peak memory consumption was 92.5MB. Max. memory is 16.1GB. [2023-11-06 22:09:15,435 INFO L158 Benchmark]: Witness Printer took 76.07ms. Allocated memory is still 283.1MB. Free memory was 104.8MB in the beginning and 101.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:09:15,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 182.5MB. Free memory is still 158.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.59ms. Allocated memory is still 182.5MB. Free memory was 135.5MB in the beginning and 114.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.03ms. Allocated memory is still 182.5MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.87ms. Allocated memory is still 182.5MB. Free memory was 112.8MB in the beginning and 111.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.41ms. Allocated memory is still 182.5MB. Free memory was 111.2MB in the beginning and 94.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14598.13ms. Allocated memory was 182.5MB in the beginning and 283.1MB in the end (delta: 100.7MB). Free memory was 94.0MB in the beginning and 104.8MB in the end (delta: -10.8MB). Peak memory consumption was 92.5MB. Max. memory is 16.1GB. * Witness Printer took 76.07ms. Allocated memory is still 283.1MB. Free memory was 104.8MB in the beginning and 101.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 121 PlacesBefore, 42 PlacesAfterwards, 111 TransitionsBefore, 30 TransitionsAfterwards, 2602 CoEnabledTransitionPairs, 7 FixpointIterations, 27 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 115 TotalNumberOfCompositions, 4589 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2371, independent: 2259, independent conditional: 0, independent unconditional: 2259, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1385, independent: 1358, independent conditional: 0, independent unconditional: 1358, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2371, independent: 901, independent conditional: 0, independent unconditional: 901, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 1385, unknown conditional: 0, unknown unconditional: 1385] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: -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: -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: -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: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 788]: 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 9 procedures, 148 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.4s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 950 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 683 mSDsluCounter, 227 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2958 IncrementalHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 19 mSDtfsCounter, 2958 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=455occurred in iteration=12, InterpolantAutomatonStates: 79, 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, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 1843 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:09:15,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf465c96-02c6-48e3-bcd6-ecea01b8b52d/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