./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:37:51,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:37:51,119 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-28 20:37:51,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:37:51,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:37:51,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:37:51,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:37:51,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:37:51,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:37:51,149 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:37:51,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:37:51,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:37:51,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:37:51,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:37:51,152 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:37:51,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:37:51,153 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:37:51,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:37:51,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:37:51,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:37:51,155 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 20:37:51,155 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 20:37:51,156 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-28 20:37:51,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:37:51,157 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:37:51,157 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:37:51,157 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:37:51,158 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:37:51,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:37:51,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:37:51,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:37:51,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:37:51,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:37:51,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:37:51,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:37:51,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:37:51,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:37:51,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:37:51,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:37:51,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:37:51,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:37:51,162 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_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2023-11-28 20:37:51,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:37:51,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:37:51,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:37:51,434 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:37:51,435 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:37:51,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2023-11-28 20:37:54,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:37:54,360 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:37:54,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2023-11-28 20:37:54,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/data/8fb415ba1/a9dafd086d9842daa76f1f47c39206aa/FLAG3397cdcf9 [2023-11-28 20:37:54,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/data/8fb415ba1/a9dafd086d9842daa76f1f47c39206aa [2023-11-28 20:37:54,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:37:54,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:37:54,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:37:54,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:37:54,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:37:54,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:54,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0ac7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54, skipping insertion in model container [2023-11-28 20:37:54,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:54,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:37:54,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:37:54,878 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:37:54,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:37:54,977 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:37:54,977 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:37:54,984 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:37:54,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54 WrapperNode [2023-11-28 20:37:54,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:37:54,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:37:54,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:37:54,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:37:54,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,043 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 217 [2023-11-28 20:37:55,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:37:55,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:37:55,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:37:55,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:37:55,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,085 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-28 20:37:55,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:37:55,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:37:55,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:37:55,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:37:55,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (1/1) ... [2023-11-28 20:37:55,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:37:55,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:55,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:37:55,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:37:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 20:37:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 20:37:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 20:37:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-28 20:37:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:37:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:37:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:37:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-28 20:37:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-28 20:37:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-28 20:37:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-28 20:37:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:37:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:37:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 20:37:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-28 20:37:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:37:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:37:55,177 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 20:37:55,312 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:37:55,313 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:37:55,697 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:37:55,995 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:37:55,995 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 20:37:55,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:37:55 BoogieIcfgContainer [2023-11-28 20:37:55,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:37:55,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:37:55,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:37:56,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:37:56,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:37:54" (1/3) ... [2023-11-28 20:37:56,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7081db87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:37:56, skipping insertion in model container [2023-11-28 20:37:56,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:54" (2/3) ... [2023-11-28 20:37:56,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7081db87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:37:56, skipping insertion in model container [2023-11-28 20:37:56,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:37:55" (3/3) ... [2023-11-28 20:37:56,004 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2023-11-28 20:37:56,024 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:37:56,024 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-28 20:37:56,024 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 20:37:56,079 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-28 20:37:56,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 98 flow [2023-11-28 20:37:56,144 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2023-11-28 20:37:56,144 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:37:56,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-11-28 20:37:56,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 45 transitions, 98 flow [2023-11-28 20:37:56,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 43 transitions, 92 flow [2023-11-28 20:37:56,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:37:56,168 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;@7006b1ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:37:56,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-28 20:37:56,172 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:37:56,172 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-28 20:37:56,172 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:37:56,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:56,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-28 20:37:56,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:37:56,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash 18499, now seen corresponding path program 1 times [2023-11-28 20:37:56,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:56,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190360448] [2023-11-28 20:37:56,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:56,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:56,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:56,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190360448] [2023-11-28 20:37:56,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190360448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:56,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 20:37:56,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697781304] [2023-11-28 20:37:56,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:56,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:37:56,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:56,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:37:56,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:37:56,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2023-11-28 20:37:56,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-11-28 20:37:56,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:56,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2023-11-28 20:37:56,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:56,943 INFO L124 PetriNetUnfolderBase]: 648/1301 cut-off events. [2023-11-28 20:37:56,944 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-28 20:37:56,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 1301 events. 648/1301 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 8012 event pairs, 496 based on Foata normal form. 90/1287 useless extension candidates. Maximal degree in co-relation 2369. Up to 823 conditions per place. [2023-11-28 20:37:56,961 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 35 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2023-11-28 20:37:56,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 51 transitions, 182 flow [2023-11-28 20:37:56,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:37:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:37:56,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-11-28 20:37:56,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2023-11-28 20:37:56,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-11-28 20:37:56,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-11-28 20:37:56,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:56,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-11-28 20:37:56,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:56,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:56,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:56,985 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 92 flow. Second operand 3 states and 88 transitions. [2023-11-28 20:37:56,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 51 transitions, 182 flow [2023-11-28 20:37:56,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:37:56,991 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 86 flow [2023-11-28 20:37:56,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-11-28 20:37:56,997 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2023-11-28 20:37:56,998 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 86 flow [2023-11-28 20:37:56,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-11-28 20:37:56,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:56,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-28 20:37:56,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:37:56,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:37:57,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:57,000 INFO L85 PathProgramCache]: Analyzing trace with hash 18500, now seen corresponding path program 1 times [2023-11-28 20:37:57,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:57,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159156495] [2023-11-28 20:37:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:57,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:57,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:57,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159156495] [2023-11-28 20:37:57,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159156495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:57,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:57,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 20:37:57,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65793791] [2023-11-28 20:37:57,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:57,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:37:57,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:57,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:37:57,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:37:57,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2023-11-28 20:37:57,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-11-28 20:37:57,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:57,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2023-11-28 20:37:57,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:57,504 INFO L124 PetriNetUnfolderBase]: 648/1300 cut-off events. [2023-11-28 20:37:57,504 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-28 20:37:57,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 1300 events. 648/1300 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 8026 event pairs, 496 based on Foata normal form. 1/1197 useless extension candidates. Maximal degree in co-relation 2414. Up to 822 conditions per place. [2023-11-28 20:37:57,516 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 34 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2023-11-28 20:37:57,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 180 flow [2023-11-28 20:37:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:37:57,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:37:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-11-28 20:37:57,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2023-11-28 20:37:57,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-11-28 20:37:57,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-11-28 20:37:57,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:57,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-11-28 20:37:57,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:57,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:57,521 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:57,522 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 86 flow. Second operand 3 states and 88 transitions. [2023-11-28 20:37:57,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 180 flow [2023-11-28 20:37:57,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 50 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:37:57,527 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 84 flow [2023-11-28 20:37:57,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-11-28 20:37:57,528 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-28 20:37:57,528 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 84 flow [2023-11-28 20:37:57,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-11-28 20:37:57,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:57,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-28 20:37:57,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:37:57,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:37:57,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash 551644610, now seen corresponding path program 1 times [2023-11-28 20:37:57,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:57,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177465703] [2023-11-28 20:37:57,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:57,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:57,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:57,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:57,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177465703] [2023-11-28 20:37:57,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177465703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:57,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:57,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:37:57,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930515316] [2023-11-28 20:37:57,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:57,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:37:57,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:57,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:37:57,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:37:57,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2023-11-28 20:37:57,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:57,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:57,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2023-11-28 20:37:57,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:57,930 INFO L124 PetriNetUnfolderBase]: 652/1289 cut-off events. [2023-11-28 20:37:57,930 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-28 20:37:57,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2423 conditions, 1289 events. 652/1289 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7907 event pairs, 312 based on Foata normal form. 0/1194 useless extension candidates. Maximal degree in co-relation 2412. Up to 825 conditions per place. [2023-11-28 20:37:57,943 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 35 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2023-11-28 20:37:57,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 180 flow [2023-11-28 20:37:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:37:57,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:37:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2023-11-28 20:37:57,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6370370370370371 [2023-11-28 20:37:57,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 86 transitions. [2023-11-28 20:37:57,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 86 transitions. [2023-11-28 20:37:57,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:57,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 86 transitions. [2023-11-28 20:37:57,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-11-28 20:37:57,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:57,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:57,957 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 84 flow. Second operand 3 states and 86 transitions. [2023-11-28 20:37:57,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 180 flow [2023-11-28 20:37:57,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:37:57,962 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 82 flow [2023-11-28 20:37:57,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2023-11-28 20:37:57,964 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-11-28 20:37:57,965 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 82 flow [2023-11-28 20:37:57,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:57,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:57,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-28 20:37:57,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:37:57,967 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:37:57,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:57,968 INFO L85 PathProgramCache]: Analyzing trace with hash 551644611, now seen corresponding path program 1 times [2023-11-28 20:37:57,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:57,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196226372] [2023-11-28 20:37:57,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:57,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:58,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:58,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:58,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196226372] [2023-11-28 20:37:58,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196226372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:58,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:58,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:37:58,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528830828] [2023-11-28 20:37:58,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:58,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:37:58,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:58,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:37:58,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:37:58,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2023-11-28 20:37:58,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-11-28 20:37:58,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:58,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2023-11-28 20:37:58,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:58,326 INFO L124 PetriNetUnfolderBase]: 648/1280 cut-off events. [2023-11-28 20:37:58,326 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-11-28 20:37:58,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 1280 events. 648/1280 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7864 event pairs, 312 based on Foata normal form. 5/1190 useless extension candidates. Maximal degree in co-relation 2399. Up to 816 conditions per place. [2023-11-28 20:37:58,334 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 34 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-11-28 20:37:58,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 48 transitions, 176 flow [2023-11-28 20:37:58,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:37:58,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:37:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-11-28 20:37:58,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2023-11-28 20:37:58,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-11-28 20:37:58,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-11-28 20:37:58,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:58,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-11-28 20:37:58,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:58,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:58,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:58,338 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 82 flow. Second operand 3 states and 88 transitions. [2023-11-28 20:37:58,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 48 transitions, 176 flow [2023-11-28 20:37:58,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:37:58,341 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 80 flow [2023-11-28 20:37:58,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2023-11-28 20:37:58,342 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -5 predicate places. [2023-11-28 20:37:58,342 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 80 flow [2023-11-28 20:37:58,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-11-28 20:37:58,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:58,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:58,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:37:58,343 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:37:58,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:58,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1500241854, now seen corresponding path program 1 times [2023-11-28 20:37:58,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:58,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079639261] [2023-11-28 20:37:58,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:58,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:58,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:58,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079639261] [2023-11-28 20:37:58,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079639261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:58,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:58,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 20:37:58,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991008767] [2023-11-28 20:37:58,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:58,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:37:58,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:37:58,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:37:58,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2023-11-28 20:37:58,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:58,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:58,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2023-11-28 20:37:58,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:58,725 INFO L124 PetriNetUnfolderBase]: 572/1023 cut-off events. [2023-11-28 20:37:58,726 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-11-28 20:37:58,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1023 events. 572/1023 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5603 event pairs, 40 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 2016. Up to 848 conditions per place. [2023-11-28 20:37:58,733 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 33 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2023-11-28 20:37:58,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 174 flow [2023-11-28 20:37:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:37:58,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:37:58,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2023-11-28 20:37:58,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2023-11-28 20:37:58,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 90 transitions. [2023-11-28 20:37:58,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 90 transitions. [2023-11-28 20:37:58,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:58,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 90 transitions. [2023-11-28 20:37:58,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2023-11-28 20:37:58,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:58,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:58,737 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 80 flow. Second operand 3 states and 90 transitions. [2023-11-28 20:37:58,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 174 flow [2023-11-28 20:37:58,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:37:58,739 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 78 flow [2023-11-28 20:37:58,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2023-11-28 20:37:58,740 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-11-28 20:37:58,741 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 78 flow [2023-11-28 20:37:58,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:58,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:58,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:58,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 20:37:58,741 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:37:58,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:58,742 INFO L85 PathProgramCache]: Analyzing trace with hash -737142185, now seen corresponding path program 1 times [2023-11-28 20:37:58,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:58,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489020718] [2023-11-28 20:37:58,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:58,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:58,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:58,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489020718] [2023-11-28 20:37:58,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489020718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:58,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:58,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 20:37:58,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665210768] [2023-11-28 20:37:58,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:58,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:37:58,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:58,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:37:58,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:37:58,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2023-11-28 20:37:58,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:58,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:58,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2023-11-28 20:37:58,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:59,081 INFO L124 PetriNetUnfolderBase]: 496/928 cut-off events. [2023-11-28 20:37:59,082 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-28 20:37:59,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1811 conditions, 928 events. 496/928 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5168 event pairs, 116 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 1800. Up to 606 conditions per place. [2023-11-28 20:37:59,088 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 30 selfloop transitions, 2 changer transitions 2/46 dead transitions. [2023-11-28 20:37:59,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 168 flow [2023-11-28 20:37:59,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:37:59,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:37:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2023-11-28 20:37:59,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6592592592592592 [2023-11-28 20:37:59,090 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 89 transitions. [2023-11-28 20:37:59,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 89 transitions. [2023-11-28 20:37:59,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:59,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 89 transitions. [2023-11-28 20:37:59,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-11-28 20:37:59,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:59,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2023-11-28 20:37:59,092 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 78 flow. Second operand 3 states and 89 transitions. [2023-11-28 20:37:59,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 168 flow [2023-11-28 20:37:59,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:37:59,094 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 74 flow [2023-11-28 20:37:59,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2023-11-28 20:37:59,095 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -7 predicate places. [2023-11-28 20:37:59,095 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 74 flow [2023-11-28 20:37:59,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:37:59,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:59,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:59,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 20:37:59,096 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:37:59,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash 551549781, now seen corresponding path program 1 times [2023-11-28 20:37:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:59,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919002187] [2023-11-28 20:37:59,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:59,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:37:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:37:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:37:59,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:37:59,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919002187] [2023-11-28 20:37:59,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919002187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:37:59,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:37:59,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:37:59,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084090077] [2023-11-28 20:37:59,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:37:59,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:37:59,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:37:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:37:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:37:59,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2023-11-28 20:37:59,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2023-11-28 20:37:59,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:37:59,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2023-11-28 20:37:59,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:37:59,966 INFO L124 PetriNetUnfolderBase]: 707/1428 cut-off events. [2023-11-28 20:37:59,966 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-28 20:37:59,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2708 conditions, 1428 events. 707/1428 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8878 event pairs, 599 based on Foata normal form. 35/1456 useless extension candidates. Maximal degree in co-relation 2696. Up to 627 conditions per place. [2023-11-28 20:37:59,976 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 38 selfloop transitions, 3 changer transitions 11/62 dead transitions. [2023-11-28 20:37:59,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 62 transitions, 242 flow [2023-11-28 20:37:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:37:59,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-28 20:37:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2023-11-28 20:37:59,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5911111111111111 [2023-11-28 20:37:59,979 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 133 transitions. [2023-11-28 20:37:59,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 133 transitions. [2023-11-28 20:37:59,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:37:59,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 133 transitions. [2023-11-28 20:37:59,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2023-11-28 20:37:59,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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) [2023-11-28 20:37:59,981 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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) [2023-11-28 20:37:59,982 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 74 flow. Second operand 5 states and 133 transitions. [2023-11-28 20:37:59,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 62 transitions, 242 flow [2023-11-28 20:37:59,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:37:59,984 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 92 flow [2023-11-28 20:37:59,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-11-28 20:37:59,985 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-28 20:37:59,985 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 92 flow [2023-11-28 20:37:59,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2023-11-28 20:37:59,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:37:59,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:37:59,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 20:37:59,987 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:37:59,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:37:59,987 INFO L85 PathProgramCache]: Analyzing trace with hash 551549858, now seen corresponding path program 1 times [2023-11-28 20:37:59,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:37:59,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330976857] [2023-11-28 20:37:59,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:37:59,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:00,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:00,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:00,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330976857] [2023-11-28 20:38:00,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330976857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:00,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:00,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:38:00,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659170813] [2023-11-28 20:38:00,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:00,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:38:00,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:00,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:38:00,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:38:00,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2023-11-28 20:38:00,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:00,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:38:00,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2023-11-28 20:38:00,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:38:00,460 INFO L124 PetriNetUnfolderBase]: 692/1394 cut-off events. [2023-11-28 20:38:00,460 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-11-28 20:38:00,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2743 conditions, 1394 events. 692/1394 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7861 event pairs, 146 based on Foata normal form. 80/1473 useless extension candidates. Maximal degree in co-relation 2729. Up to 685 conditions per place. [2023-11-28 20:38:00,467 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 47 selfloop transitions, 4 changer transitions 1/61 dead transitions. [2023-11-28 20:38:00,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 61 transitions, 256 flow [2023-11-28 20:38:00,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:38:00,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-28 20:38:00,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2023-11-28 20:38:00,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2023-11-28 20:38:00,469 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 112 transitions. [2023-11-28 20:38:00,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 112 transitions. [2023-11-28 20:38:00,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:38:00,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 112 transitions. [2023-11-28 20:38:00,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2023-11-28 20:38:00,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 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) [2023-11-28 20:38:00,470 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 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) [2023-11-28 20:38:00,470 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 92 flow. Second operand 4 states and 112 transitions. [2023-11-28 20:38:00,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 61 transitions, 256 flow [2023-11-28 20:38:00,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 252 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-28 20:38:00,473 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 114 flow [2023-11-28 20:38:00,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-11-28 20:38:00,474 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-28 20:38:00,474 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 114 flow [2023-11-28 20:38:00,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:00,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:38:00,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:00,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 20:38:00,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:38:00,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:00,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1310547465, now seen corresponding path program 1 times [2023-11-28 20:38:00,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:00,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376334502] [2023-11-28 20:38:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:00,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:00,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:00,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376334502] [2023-11-28 20:38:00,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376334502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:00,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:00,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:38:00,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136803362] [2023-11-28 20:38:00,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:00,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:38:00,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:00,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:38:00,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:38:00,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2023-11-28 20:38:00,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2023-11-28 20:38:00,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:38:00,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2023-11-28 20:38:00,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:38:00,898 INFO L124 PetriNetUnfolderBase]: 308/618 cut-off events. [2023-11-28 20:38:00,898 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2023-11-28 20:38:00,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1468 conditions, 618 events. 308/618 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2644 event pairs, 98 based on Foata normal form. 44/661 useless extension candidates. Maximal degree in co-relation 1452. Up to 258 conditions per place. [2023-11-28 20:38:00,902 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 38 selfloop transitions, 6 changer transitions 1/54 dead transitions. [2023-11-28 20:38:00,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 247 flow [2023-11-28 20:38:00,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:38:00,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-28 20:38:00,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2023-11-28 20:38:00,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-11-28 20:38:00,903 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 120 transitions. [2023-11-28 20:38:00,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 120 transitions. [2023-11-28 20:38:00,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:38:00,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 120 transitions. [2023-11-28 20:38:00,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2023-11-28 20:38:00,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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) [2023-11-28 20:38:00,905 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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) [2023-11-28 20:38:00,906 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 114 flow. Second operand 5 states and 120 transitions. [2023-11-28 20:38:00,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 247 flow [2023-11-28 20:38:00,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 54 transitions, 238 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-28 20:38:00,909 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 130 flow [2023-11-28 20:38:00,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2023-11-28 20:38:00,910 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 3 predicate places. [2023-11-28 20:38:00,910 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 130 flow [2023-11-28 20:38:00,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2023-11-28 20:38:00,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:38:00,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:00,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 20:38:00,911 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:38:00,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:00,911 INFO L85 PathProgramCache]: Analyzing trace with hash 520631326, now seen corresponding path program 1 times [2023-11-28 20:38:00,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:00,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846278758] [2023-11-28 20:38:00,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:00,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:02,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:02,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846278758] [2023-11-28 20:38:02,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846278758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:02,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:02,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 20:38:02,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867388960] [2023-11-28 20:38:02,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:02,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 20:38:02,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:02,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 20:38:02,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:38:02,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2023-11-28 20:38:02,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 130 flow. Second operand has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 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) [2023-11-28 20:38:02,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:38:02,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2023-11-28 20:38:02,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:38:03,096 INFO L124 PetriNetUnfolderBase]: 291/636 cut-off events. [2023-11-28 20:38:03,097 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2023-11-28 20:38:03,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 636 events. 291/636 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2962 event pairs, 84 based on Foata normal form. 8/633 useless extension candidates. Maximal degree in co-relation 1445. Up to 202 conditions per place. [2023-11-28 20:38:03,101 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 43 selfloop transitions, 8 changer transitions 6/70 dead transitions. [2023-11-28 20:38:03,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 70 transitions, 328 flow [2023-11-28 20:38:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:38:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-28 20:38:03,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 192 transitions. [2023-11-28 20:38:03,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-11-28 20:38:03,103 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 192 transitions. [2023-11-28 20:38:03,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 192 transitions. [2023-11-28 20:38:03,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:38:03,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 192 transitions. [2023-11-28 20:38:03,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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) [2023-11-28 20:38:03,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 45.0) internal successors, (405), 9 states have internal predecessors, (405), 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) [2023-11-28 20:38:03,106 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 45.0) internal successors, (405), 9 states have internal predecessors, (405), 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) [2023-11-28 20:38:03,106 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 130 flow. Second operand 8 states and 192 transitions. [2023-11-28 20:38:03,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 70 transitions, 328 flow [2023-11-28 20:38:03,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 70 transitions, 294 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-28 20:38:03,110 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 150 flow [2023-11-28 20:38:03,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2023-11-28 20:38:03,111 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 9 predicate places. [2023-11-28 20:38:03,111 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 150 flow [2023-11-28 20:38:03,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 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) [2023-11-28 20:38:03,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:38:03,112 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:03,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 20:38:03,112 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:38:03,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:03,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1464318772, now seen corresponding path program 2 times [2023-11-28 20:38:03,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:03,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208410481] [2023-11-28 20:38:03,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:03,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:04,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:04,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208410481] [2023-11-28 20:38:04,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208410481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:04,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:04,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 20:38:04,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037667338] [2023-11-28 20:38:04,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:04,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:38:04,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:04,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:38:04,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:38:04,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2023-11-28 20:38:04,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 150 flow. Second operand has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 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) [2023-11-28 20:38:04,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:38:04,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2023-11-28 20:38:04,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:38:05,224 INFO L124 PetriNetUnfolderBase]: 339/747 cut-off events. [2023-11-28 20:38:05,225 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2023-11-28 20:38:05,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 747 events. 339/747 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3701 event pairs, 49 based on Foata normal form. 4/741 useless extension candidates. Maximal degree in co-relation 1655. Up to 312 conditions per place. [2023-11-28 20:38:05,228 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 36 selfloop transitions, 8 changer transitions 22/79 dead transitions. [2023-11-28 20:38:05,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 79 transitions, 379 flow [2023-11-28 20:38:05,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:38:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 20:38:05,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 215 transitions. [2023-11-28 20:38:05,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2023-11-28 20:38:05,230 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 215 transitions. [2023-11-28 20:38:05,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 215 transitions. [2023-11-28 20:38:05,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:38:05,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 215 transitions. [2023-11-28 20:38:05,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 9 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:05,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:05,233 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:05,233 INFO L175 Difference]: Start difference. First operand has 57 places, 42 transitions, 150 flow. Second operand 9 states and 215 transitions. [2023-11-28 20:38:05,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 79 transitions, 379 flow [2023-11-28 20:38:05,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 79 transitions, 377 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 20:38:05,236 INFO L231 Difference]: Finished difference. Result has 70 places, 45 transitions, 198 flow [2023-11-28 20:38:05,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=198, PETRI_PLACES=70, PETRI_TRANSITIONS=45} [2023-11-28 20:38:05,237 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2023-11-28 20:38:05,237 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 45 transitions, 198 flow [2023-11-28 20:38:05,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 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) [2023-11-28 20:38:05,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:38:05,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:05,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 20:38:05,238 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:38:05,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:05,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1102995772, now seen corresponding path program 3 times [2023-11-28 20:38:05,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:05,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298402544] [2023-11-28 20:38:05,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:05,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:05,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298402544] [2023-11-28 20:38:05,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298402544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:05,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:05,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:38:05,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012134498] [2023-11-28 20:38:05,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:05,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:38:05,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:05,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:38:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:38:05,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2023-11-28 20:38:05,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 45 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2023-11-28 20:38:05,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:38:05,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2023-11-28 20:38:05,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:38:05,937 INFO L124 PetriNetUnfolderBase]: 343/784 cut-off events. [2023-11-28 20:38:05,938 INFO L125 PetriNetUnfolderBase]: For 348/348 co-relation queries the response was YES. [2023-11-28 20:38:05,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 784 events. 343/784 cut-off events. For 348/348 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4151 event pairs, 161 based on Foata normal form. 4/766 useless extension candidates. Maximal degree in co-relation 1897. Up to 323 conditions per place. [2023-11-28 20:38:05,941 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 34 selfloop transitions, 7 changer transitions 12/65 dead transitions. [2023-11-28 20:38:05,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 65 transitions, 370 flow [2023-11-28 20:38:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:38:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:38:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2023-11-28 20:38:05,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2023-11-28 20:38:05,943 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 153 transitions. [2023-11-28 20:38:05,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 153 transitions. [2023-11-28 20:38:05,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:38:05,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 153 transitions. [2023-11-28 20:38:05,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:05,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-28 20:38:05,945 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-28 20:38:05,946 INFO L175 Difference]: Start difference. First operand has 70 places, 45 transitions, 198 flow. Second operand 6 states and 153 transitions. [2023-11-28 20:38:05,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 65 transitions, 370 flow [2023-11-28 20:38:05,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 356 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-11-28 20:38:05,949 INFO L231 Difference]: Finished difference. Result has 68 places, 39 transitions, 198 flow [2023-11-28 20:38:05,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=198, PETRI_PLACES=68, PETRI_TRANSITIONS=39} [2023-11-28 20:38:05,950 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2023-11-28 20:38:05,950 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 39 transitions, 198 flow [2023-11-28 20:38:05,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2023-11-28 20:38:05,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:38:05,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:05,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 20:38:05,952 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-28 20:38:05,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:05,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1412049099, now seen corresponding path program 1 times [2023-11-28 20:38:05,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:05,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737762780] [2023-11-28 20:38:05,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:05,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:06,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:06,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737762780] [2023-11-28 20:38:06,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737762780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:06,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:06,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:38:06,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753628386] [2023-11-28 20:38:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:06,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:38:06,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:06,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:38:06,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:38:06,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2023-11-28 20:38:06,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 39 transitions, 198 flow. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 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) [2023-11-28 20:38:06,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:38:06,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2023-11-28 20:38:06,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:38:06,720 INFO L124 PetriNetUnfolderBase]: 114/269 cut-off events. [2023-11-28 20:38:06,720 INFO L125 PetriNetUnfolderBase]: For 317/317 co-relation queries the response was YES. [2023-11-28 20:38:06,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 269 events. 114/269 cut-off events. For 317/317 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 970 event pairs, 25 based on Foata normal form. 8/273 useless extension candidates. Maximal degree in co-relation 723. Up to 154 conditions per place. [2023-11-28 20:38:06,721 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2023-11-28 20:38:06,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 48 transitions, 306 flow [2023-11-28 20:38:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:38:06,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-28 20:38:06,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2023-11-28 20:38:06,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43492063492063493 [2023-11-28 20:38:06,723 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 137 transitions. [2023-11-28 20:38:06,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 137 transitions. [2023-11-28 20:38:06,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:38:06,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 137 transitions. [2023-11-28 20:38:06,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 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) [2023-11-28 20:38:06,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 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) [2023-11-28 20:38:06,724 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 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) [2023-11-28 20:38:06,725 INFO L175 Difference]: Start difference. First operand has 68 places, 39 transitions, 198 flow. Second operand 7 states and 137 transitions. [2023-11-28 20:38:06,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 48 transitions, 306 flow [2023-11-28 20:38:06,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 48 transitions, 247 flow, removed 5 selfloop flow, removed 13 redundant places. [2023-11-28 20:38:06,727 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2023-11-28 20:38:06,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2023-11-28 20:38:06,728 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2023-11-28 20:38:06,728 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2023-11-28 20:38:06,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 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) [2023-11-28 20:38:06,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-11-28 20:38:06,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2023-11-28 20:38:06,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-11-28 20:38:06,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-11-28 20:38:06,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-11-28 20:38:06,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-11-28 20:38:06,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2023-11-28 20:38:06,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 12 remaining) [2023-11-28 20:38:06,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-11-28 20:38:06,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-28 20:38:06,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2023-11-28 20:38:06,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2023-11-28 20:38:06,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 20:38:06,734 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:06,739 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-28 20:38:06,739 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:38:06,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:38:06 BasicIcfg [2023-11-28 20:38:06,745 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:38:06,745 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:38:06,745 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:38:06,746 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:38:06,746 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:37:55" (3/4) ... [2023-11-28 20:38:06,748 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:38:06,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-28 20:38:06,751 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-28 20:38:06,757 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 97 nodes and edges [2023-11-28 20:38:06,758 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-28 20:38:06,758 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-28 20:38:06,758 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 20:38:06,845 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:38:06,846 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:38:06,846 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:38:06,847 INFO L158 Benchmark]: Toolchain (without parser) took 12450.75ms. Allocated memory was 165.7MB in the beginning and 352.3MB in the end (delta: 186.6MB). Free memory was 129.8MB in the beginning and 163.6MB in the end (delta: -33.8MB). Peak memory consumption was 153.8MB. Max. memory is 16.1GB. [2023-11-28 20:38:06,847 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 93.3MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:38:06,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.92ms. Allocated memory is still 165.7MB. Free memory was 129.8MB in the beginning and 101.7MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-28 20:38:06,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.35ms. Allocated memory is still 165.7MB. Free memory was 101.7MB in the beginning and 98.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:38:06,848 INFO L158 Benchmark]: Boogie Preprocessor took 65.70ms. Allocated memory is still 165.7MB. Free memory was 98.0MB in the beginning and 93.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:38:06,849 INFO L158 Benchmark]: RCFGBuilder took 884.28ms. Allocated memory is still 165.7MB. Free memory was 93.0MB in the beginning and 123.8MB in the end (delta: -30.8MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-28 20:38:06,849 INFO L158 Benchmark]: TraceAbstraction took 10746.87ms. Allocated memory was 165.7MB in the beginning and 352.3MB in the end (delta: 186.6MB). Free memory was 123.8MB in the beginning and 168.8MB in the end (delta: -45.0MB). Peak memory consumption was 141.6MB. Max. memory is 16.1GB. [2023-11-28 20:38:06,849 INFO L158 Benchmark]: Witness Printer took 100.75ms. Allocated memory is still 352.3MB. Free memory was 168.8MB in the beginning and 163.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:38:06,851 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 93.3MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.92ms. Allocated memory is still 165.7MB. Free memory was 129.8MB in the beginning and 101.7MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.35ms. Allocated memory is still 165.7MB. Free memory was 101.7MB in the beginning and 98.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.70ms. Allocated memory is still 165.7MB. Free memory was 98.0MB in the beginning and 93.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 884.28ms. Allocated memory is still 165.7MB. Free memory was 93.0MB in the beginning and 123.8MB in the end (delta: -30.8MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * TraceAbstraction took 10746.87ms. Allocated memory was 165.7MB in the beginning and 352.3MB in the end (delta: 186.6MB). Free memory was 123.8MB in the beginning and 168.8MB in the end (delta: -45.0MB). Peak memory consumption was 141.6MB. Max. memory is 16.1GB. * Witness Printer took 100.75ms. Allocated memory is still 352.3MB. Free memory was 168.8MB in the beginning and 163.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -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: 874]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 65 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.6s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 480 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 406 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1813 IncrementalHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 18 mSDtfsCounter, 1813 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=11, InterpolantAutomatonStates: 62, 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, 0.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 1537 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-28 20:38:06,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b1bb9b-7337-4dc6-8619-58074ea728b7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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