./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB --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 a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:04:24,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:04:24,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:04:24,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:04:24,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:04:24,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:04:24,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:04:24,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:04:24,447 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:04:24,447 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:04:24,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:04:24,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:04:24,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:04:24,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:04:24,449 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:04:24,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:04:24,450 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:04:24,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:04:24,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:04:24,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:04:24,451 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:04:24,451 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:04:24,452 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:04:24,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:04:24,452 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:04:24,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:04:24,452 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:04:24,452 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:04:24,452 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:04:24,452 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:04:24,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:04:24,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:04:24,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:04:24,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:04:24,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:04:24,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:04:24,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:04:24,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:04:24,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:04:24,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:04:24,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:04:24,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:04:24,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:04:24,454 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:04:24,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:04:24,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:04:24,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:04:24,455 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 [2024-11-28 03:04:24,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:04:24,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:04:24,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:04:24,801 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:04:24,801 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:04:24,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-28 03:04:27,783 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/data/12bfe66c6/1e5f8b146ab14632b04d55096526484f/FLAG248016232 [2024-11-28 03:04:28,192 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:04:28,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-28 03:04:28,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/data/12bfe66c6/1e5f8b146ab14632b04d55096526484f/FLAG248016232 [2024-11-28 03:04:28,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/data/12bfe66c6/1e5f8b146ab14632b04d55096526484f [2024-11-28 03:04:28,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:04:28,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:04:28,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:04:28,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:04:28,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:04:28,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:28,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf240b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28, skipping insertion in model container [2024-11-28 03:04:28,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:28,309 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:04:28,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:04:28,787 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:04:28,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:04:28,945 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:04:28,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28 WrapperNode [2024-11-28 03:04:28,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:04:28,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:04:28,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:04:28,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:04:28,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:28,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,031 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-28 03:04:29,035 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:04:29,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:04:29,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:04:29,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:04:29,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,084 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:04:29,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,093 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:04:29,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:04:29,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:04:29,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:04:29,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2024-11-28 03:04:29,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:04:29,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:04:29,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:04:29,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39043557-5f44-4b92-9d92-739893b91eba/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:04:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:04:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:04:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 03:04:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 03:04:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 03:04:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 03:04:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 03:04:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 03:04:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 03:04:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 03:04:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:04:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:04:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:04:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:04:29,199 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:04:29,375 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:04:29,377 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:04:29,836 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:04:29,836 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:04:30,188 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:04:30,189 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:04:30,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:30 BoogieIcfgContainer [2024-11-28 03:04:30,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:04:30,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:04:30,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:04:30,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:04:30,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:04:28" (1/3) ... [2024-11-28 03:04:30,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179514bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:30, skipping insertion in model container [2024-11-28 03:04:30,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (2/3) ... [2024-11-28 03:04:30,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179514bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:30, skipping insertion in model container [2024-11-28 03:04:30,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:30" (3/3) ... [2024-11-28 03:04:30,203 INFO L128 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2024-11-28 03:04:30,220 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:04:30,222 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix017.oepc.i that has 5 procedures, 53 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-28 03:04:30,225 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:04:30,324 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:04:30,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-28 03:04:30,429 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-28 03:04:30,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:04:30,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-11-28 03:04:30,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-28 03:04:30,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-28 03:04:30,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:04:30,474 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@438bca4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:04:30,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 03:04:30,483 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:04:30,484 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-28 03:04:30,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:04:30,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:30,485 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 03:04:30,486 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:30,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:30,493 INFO L85 PathProgramCache]: Analyzing trace with hash 12983834, now seen corresponding path program 1 times [2024-11-28 03:04:30,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:30,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623332843] [2024-11-28 03:04:30,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:30,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:31,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:31,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623332843] [2024-11-28 03:04:31,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623332843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:31,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:31,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:04:31,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440454201] [2024-11-28 03:04:31,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:31,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:31,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:31,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:31,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:31,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-11-28 03:04:31,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:31,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:31,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-11-28 03:04:31,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:04:32,817 INFO L124 PetriNetUnfolderBase]: 3311/5438 cut-off events. [2024-11-28 03:04:32,819 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-28 03:04:32,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10118 conditions, 5438 events. 3311/5438 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 38970 event pairs, 593 based on Foata normal form. 288/5671 useless extension candidates. Maximal degree in co-relation 10106. Up to 3661 conditions per place. [2024-11-28 03:04:32,873 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 41 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2024-11-28 03:04:32,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 243 flow [2024-11-28 03:04:32,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:32,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:04:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-11-28 03:04:32,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2024-11-28 03:04:32,900 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 125 transitions. [2024-11-28 03:04:32,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 243 flow [2024-11-28 03:04:32,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:04:32,914 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-28 03:04:32,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-11-28 03:04:32,922 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-28 03:04:32,922 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-28 03:04:32,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:32,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:32,923 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:32,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:04:32,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:32,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash -455328883, now seen corresponding path program 1 times [2024-11-28 03:04:32,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:32,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072941618] [2024-11-28 03:04:32,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:33,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:33,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072941618] [2024-11-28 03:04:33,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072941618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:33,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:33,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:04:33,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701028078] [2024-11-28 03:04:33,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:33,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:33,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:33,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:33,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:33,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-11-28 03:04:33,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 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) [2024-11-28 03:04:33,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:33,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-11-28 03:04:33,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:04:34,194 INFO L124 PetriNetUnfolderBase]: 2903/4911 cut-off events. [2024-11-28 03:04:34,194 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-28 03:04:34,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9315 conditions, 4911 events. 2903/4911 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 34508 event pairs, 2903 based on Foata normal form. 144/4885 useless extension candidates. Maximal degree in co-relation 9305. Up to 4016 conditions per place. [2024-11-28 03:04:34,242 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 22 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-28 03:04:34,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 148 flow [2024-11-28 03:04:34,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:34,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:04:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-28 03:04:34,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2024-11-28 03:04:34,246 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 97 transitions. [2024-11-28 03:04:34,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 148 flow [2024-11-28 03:04:34,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:04:34,249 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-28 03:04:34,250 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-28 03:04:34,251 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-28 03:04:34,251 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-28 03:04:34,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2024-11-28 03:04:34,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:34,252 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:34,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:04:34,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:34,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:34,253 INFO L85 PathProgramCache]: Analyzing trace with hash -455327595, now seen corresponding path program 1 times [2024-11-28 03:04:34,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410745772] [2024-11-28 03:04:34,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:34,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:34,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:34,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410745772] [2024-11-28 03:04:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410745772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:34,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:04:34,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283932620] [2024-11-28 03:04:34,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:34,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:04:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:34,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:04:34,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:04:34,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-11-28 03:04:34,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:34,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:34,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-11-28 03:04:34,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:04:38,023 INFO L124 PetriNetUnfolderBase]: 13249/19336 cut-off events. [2024-11-28 03:04:38,023 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:04:38,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37404 conditions, 19336 events. 13249/19336 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 978. Compared 131491 event pairs, 6447 based on Foata normal form. 0/18924 useless extension candidates. Maximal degree in co-relation 37398. Up to 11671 conditions per place. [2024-11-28 03:04:38,139 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 37 selfloop transitions, 5 changer transitions 58/114 dead transitions. [2024-11-28 03:04:38,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 114 transitions, 444 flow [2024-11-28 03:04:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:04:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 03:04:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 254 transitions. [2024-11-28 03:04:38,144 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5879629629629629 [2024-11-28 03:04:38,144 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 8 states and 254 transitions. [2024-11-28 03:04:38,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 114 transitions, 444 flow [2024-11-28 03:04:38,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 114 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:04:38,150 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 150 flow [2024-11-28 03:04:38,151 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2024-11-28 03:04:38,151 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2024-11-28 03:04:38,151 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 150 flow [2024-11-28 03:04:38,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:38,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:38,152 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:38,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:04:38,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:38,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:38,153 INFO L85 PathProgramCache]: Analyzing trace with hash 317563961, now seen corresponding path program 1 times [2024-11-28 03:04:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:38,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756461530] [2024-11-28 03:04:38,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:38,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:38,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:38,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756461530] [2024-11-28 03:04:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756461530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:38,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:38,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:04:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399459891] [2024-11-28 03:04:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:38,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:04:38,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:38,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:04:38,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:04:38,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-11-28 03:04:38,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:38,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:38,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-11-28 03:04:38,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:04:40,559 INFO L124 PetriNetUnfolderBase]: 10019/14889 cut-off events. [2024-11-28 03:04:40,559 INFO L125 PetriNetUnfolderBase]: For 14331/14336 co-relation queries the response was YES. [2024-11-28 03:04:40,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39823 conditions, 14889 events. 10019/14889 cut-off events. For 14331/14336 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 99007 event pairs, 1683 based on Foata normal form. 390/15173 useless extension candidates. Maximal degree in co-relation 39811. Up to 9073 conditions per place. [2024-11-28 03:04:40,696 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 42 selfloop transitions, 3 changer transitions 51/110 dead transitions. [2024-11-28 03:04:40,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 110 transitions, 582 flow [2024-11-28 03:04:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:04:40,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:04:40,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-28 03:04:40,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6005291005291006 [2024-11-28 03:04:40,699 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 150 flow. Second operand 7 states and 227 transitions. [2024-11-28 03:04:40,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 110 transitions, 582 flow [2024-11-28 03:04:40,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 110 transitions, 569 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-28 03:04:40,895 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 160 flow [2024-11-28 03:04:40,896 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2024-11-28 03:04:40,898 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2024-11-28 03:04:40,898 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 160 flow [2024-11-28 03:04:40,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:40,899 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:40,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:40,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:04:40,901 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:40,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:40,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1397749510, now seen corresponding path program 1 times [2024-11-28 03:04:40,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:40,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424144255] [2024-11-28 03:04:40,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:40,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:41,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:41,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424144255] [2024-11-28 03:04:41,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424144255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:41,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:41,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:41,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896577159] [2024-11-28 03:04:41,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:41,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:04:41,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:41,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:04:41,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:04:41,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-28 03:04:41,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:41,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:41,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-28 03:04:41,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:04:43,218 INFO L124 PetriNetUnfolderBase]: 15258/22674 cut-off events. [2024-11-28 03:04:43,218 INFO L125 PetriNetUnfolderBase]: For 9680/9860 co-relation queries the response was YES. [2024-11-28 03:04:43,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51145 conditions, 22674 events. 15258/22674 cut-off events. For 9680/9860 co-relation queries the response was YES. Maximal size of possible extension queue 1208. Compared 157939 event pairs, 2440 based on Foata normal form. 681/22570 useless extension candidates. Maximal degree in co-relation 51129. Up to 11856 conditions per place. [2024-11-28 03:04:43,361 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 54 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2024-11-28 03:04:43,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 78 transitions, 350 flow [2024-11-28 03:04:43,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:04:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:04:43,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 142 transitions. [2024-11-28 03:04:43,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2024-11-28 03:04:43,363 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 160 flow. Second operand 4 states and 142 transitions. [2024-11-28 03:04:43,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 78 transitions, 350 flow [2024-11-28 03:04:43,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 78 transitions, 336 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-28 03:04:43,708 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 192 flow [2024-11-28 03:04:43,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2024-11-28 03:04:43,711 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-11-28 03:04:43,711 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 192 flow [2024-11-28 03:04:43,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:43,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:43,713 INFO L206 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] [2024-11-28 03:04:43,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:04:43,713 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:43,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:43,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1539788884, now seen corresponding path program 1 times [2024-11-28 03:04:43,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:43,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885322498] [2024-11-28 03:04:43,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:43,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:44,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:44,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885322498] [2024-11-28 03:04:44,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885322498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:44,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:44,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:04:44,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791960735] [2024-11-28 03:04:44,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:44,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:04:44,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:44,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:04:44,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:04:44,138 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-28 03:04:44,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:44,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:44,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-28 03:04:44,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:04:45,885 INFO L124 PetriNetUnfolderBase]: 12088/18042 cut-off events. [2024-11-28 03:04:45,885 INFO L125 PetriNetUnfolderBase]: For 6157/6271 co-relation queries the response was YES. [2024-11-28 03:04:45,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43392 conditions, 18042 events. 12088/18042 cut-off events. For 6157/6271 co-relation queries the response was YES. Maximal size of possible extension queue 888. Compared 121003 event pairs, 1451 based on Foata normal form. 602/17994 useless extension candidates. Maximal degree in co-relation 43378. Up to 6665 conditions per place. [2024-11-28 03:04:45,965 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 70 selfloop transitions, 10 changer transitions 0/98 dead transitions. [2024-11-28 03:04:45,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 98 transitions, 475 flow [2024-11-28 03:04:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:04:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:04:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-11-28 03:04:45,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2024-11-28 03:04:45,967 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 192 flow. Second operand 5 states and 182 transitions. [2024-11-28 03:04:45,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 98 transitions, 475 flow [2024-11-28 03:04:45,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 472 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:04:45,970 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 257 flow [2024-11-28 03:04:45,970 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=257, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2024-11-28 03:04:45,970 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2024-11-28 03:04:45,970 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 257 flow [2024-11-28 03:04:45,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:45,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:45,971 INFO L206 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] [2024-11-28 03:04:45,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:04:45,971 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:45,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:45,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1477728951, now seen corresponding path program 1 times [2024-11-28 03:04:45,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:45,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749151451] [2024-11-28 03:04:45,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:45,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:47,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749151451] [2024-11-28 03:04:47,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749151451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:47,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:47,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:04:47,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133028764] [2024-11-28 03:04:47,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:47,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:04:47,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:47,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:04:47,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:04:47,195 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-11-28 03:04:47,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 257 flow. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:47,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:47,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-11-28 03:04:47,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:04:51,860 INFO L124 PetriNetUnfolderBase]: 20722/32594 cut-off events. [2024-11-28 03:04:51,860 INFO L125 PetriNetUnfolderBase]: For 39104/43583 co-relation queries the response was YES. [2024-11-28 03:04:51,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92138 conditions, 32594 events. 20722/32594 cut-off events. For 39104/43583 co-relation queries the response was YES. Maximal size of possible extension queue 1721. Compared 261828 event pairs, 5597 based on Foata normal form. 609/31190 useless extension candidates. Maximal degree in co-relation 92121. Up to 12177 conditions per place. [2024-11-28 03:04:52,060 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 127 selfloop transitions, 32 changer transitions 12/195 dead transitions. [2024-11-28 03:04:52,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 195 transitions, 1088 flow [2024-11-28 03:04:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:04:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 03:04:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 438 transitions. [2024-11-28 03:04:52,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5793650793650794 [2024-11-28 03:04:52,063 INFO L175 Difference]: Start difference. First operand has 67 places, 56 transitions, 257 flow. Second operand 14 states and 438 transitions. [2024-11-28 03:04:52,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 195 transitions, 1088 flow [2024-11-28 03:04:52,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 195 transitions, 1073 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-28 03:04:52,075 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 521 flow [2024-11-28 03:04:52,075 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=521, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2024-11-28 03:04:52,076 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-11-28 03:04:52,076 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 521 flow [2024-11-28 03:04:52,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:52,076 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:52,076 INFO L206 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] [2024-11-28 03:04:52,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:04:52,076 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:52,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:52,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1000383731, now seen corresponding path program 2 times [2024-11-28 03:04:52,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:52,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180363220] [2024-11-28 03:04:52,078 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:04:52,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:52,150 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:04:52,150 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:04:52,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:52,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:52,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180363220] [2024-11-28 03:04:52,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180363220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:52,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:52,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:04:52,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022309255] [2024-11-28 03:04:52,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:52,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:04:52,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:52,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:04:52,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:04:52,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-28 03:04:52,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 521 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 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) [2024-11-28 03:04:52,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:52,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-28 03:04:52,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:04:56,360 INFO L124 PetriNetUnfolderBase]: 22525/33485 cut-off events. [2024-11-28 03:04:56,360 INFO L125 PetriNetUnfolderBase]: For 57316/59411 co-relation queries the response was YES. [2024-11-28 03:04:56,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107661 conditions, 33485 events. 22525/33485 cut-off events. For 57316/59411 co-relation queries the response was YES. Maximal size of possible extension queue 1292. Compared 230967 event pairs, 1951 based on Foata normal form. 1394/34156 useless extension candidates. Maximal degree in co-relation 107634. Up to 11064 conditions per place. [2024-11-28 03:04:56,575 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 119 selfloop transitions, 14 changer transitions 10/171 dead transitions. [2024-11-28 03:04:56,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 171 transitions, 1203 flow [2024-11-28 03:04:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:04:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:04:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 220 transitions. [2024-11-28 03:04:56,578 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2024-11-28 03:04:56,579 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 521 flow. Second operand 6 states and 220 transitions. [2024-11-28 03:04:56,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 171 transitions, 1203 flow [2024-11-28 03:04:56,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 171 transitions, 1150 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-11-28 03:04:56,652 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 529 flow [2024-11-28 03:04:56,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=529, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2024-11-28 03:04:56,654 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 29 predicate places. [2024-11-28 03:04:56,654 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 529 flow [2024-11-28 03:04:56,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 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) [2024-11-28 03:04:56,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:04:56,654 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:56,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:04:56,654 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:04:56,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1974453659, now seen corresponding path program 1 times [2024-11-28 03:04:56,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698821136] [2024-11-28 03:04:56,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:56,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:57,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:57,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698821136] [2024-11-28 03:04:57,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698821136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:57,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:57,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:04:57,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459901170] [2024-11-28 03:04:57,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:57,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:04:57,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:57,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:04:57,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:04:57,021 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-11-28 03:04:57,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 529 flow. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:57,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:04:57,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-11-28 03:04:57,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:05:01,399 INFO L124 PetriNetUnfolderBase]: 20186/33831 cut-off events. [2024-11-28 03:05:01,399 INFO L125 PetriNetUnfolderBase]: For 73786/83575 co-relation queries the response was YES. [2024-11-28 03:05:01,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109882 conditions, 33831 events. 20186/33831 cut-off events. For 73786/83575 co-relation queries the response was YES. Maximal size of possible extension queue 2089. Compared 297991 event pairs, 6972 based on Foata normal form. 958/31432 useless extension candidates. Maximal degree in co-relation 109854. Up to 11713 conditions per place. [2024-11-28 03:05:01,628 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 93 selfloop transitions, 3 changer transitions 30/167 dead transitions. [2024-11-28 03:05:01,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 167 transitions, 1191 flow [2024-11-28 03:05:01,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:05:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:05:01,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2024-11-28 03:05:01,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2024-11-28 03:05:01,630 INFO L175 Difference]: Start difference. First operand has 90 places, 84 transitions, 529 flow. Second operand 6 states and 210 transitions. [2024-11-28 03:05:01,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 167 transitions, 1191 flow [2024-11-28 03:05:02,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 167 transitions, 1144 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-28 03:05:02,264 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 504 flow [2024-11-28 03:05:02,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-11-28 03:05:02,264 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 31 predicate places. [2024-11-28 03:05:02,265 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 504 flow [2024-11-28 03:05:02,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:05:02,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:05:02,265 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:02,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:05:02,265 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:05:02,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:02,266 INFO L85 PathProgramCache]: Analyzing trace with hash -382484265, now seen corresponding path program 2 times [2024-11-28 03:05:02,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:02,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12471932] [2024-11-28 03:05:02,266 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:05:02,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:02,382 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:05:02,382 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:05:04,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:05:04,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:04,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12471932] [2024-11-28 03:05:04,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12471932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:04,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:04,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:05:04,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633889416] [2024-11-28 03:05:04,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:04,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:05:04,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:04,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:05:04,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:05:04,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-11-28 03:05:04,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 504 flow. Second operand has 9 states, 9 states have (on average 25.11111111111111) internal successors, (226), 9 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:05:04,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:05:04,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-11-28 03:05:04,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:05:10,170 INFO L124 PetriNetUnfolderBase]: 26007/44748 cut-off events. [2024-11-28 03:05:10,170 INFO L125 PetriNetUnfolderBase]: For 72426/81785 co-relation queries the response was YES. [2024-11-28 03:05:10,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136237 conditions, 44748 events. 26007/44748 cut-off events. For 72426/81785 co-relation queries the response was YES. Maximal size of possible extension queue 3240. Compared 431557 event pairs, 8365 based on Foata normal form. 2055/42161 useless extension candidates. Maximal degree in co-relation 136208. Up to 13531 conditions per place. [2024-11-28 03:05:10,461 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 79 selfloop transitions, 22 changer transitions 23/170 dead transitions. [2024-11-28 03:05:10,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 170 transitions, 1157 flow [2024-11-28 03:05:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:05:10,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:05:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 306 transitions. [2024-11-28 03:05:10,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-11-28 03:05:10,463 INFO L175 Difference]: Start difference. First operand has 92 places, 83 transitions, 504 flow. Second operand 9 states and 306 transitions. [2024-11-28 03:05:10,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 170 transitions, 1157 flow [2024-11-28 03:05:11,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 170 transitions, 1122 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-11-28 03:05:11,169 INFO L231 Difference]: Finished difference. Result has 97 places, 101 transitions, 689 flow [2024-11-28 03:05:11,169 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=689, PETRI_PLACES=97, PETRI_TRANSITIONS=101} [2024-11-28 03:05:11,169 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 36 predicate places. [2024-11-28 03:05:11,169 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 101 transitions, 689 flow [2024-11-28 03:05:11,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.11111111111111) internal successors, (226), 9 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:05:11,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:05:11,170 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:11,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:05:11,170 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 03:05:11,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:11,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1385142837, now seen corresponding path program 3 times [2024-11-28 03:05:11,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:11,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376858497] [2024-11-28 03:05:11,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:05:11,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:11,264 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:05:11,264 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:05:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:05:11,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:11,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376858497] [2024-11-28 03:05:11,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376858497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:11,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:11,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:05:11,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17464427] [2024-11-28 03:05:11,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:11,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:05:11,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:11,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:05:11,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:05:11,486 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-28 03:05:11,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 101 transitions, 689 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:05:11,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:05:11,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-28 03:05:11,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:05:20,306 INFO L124 PetriNetUnfolderBase]: 49645/72295 cut-off events. [2024-11-28 03:05:20,306 INFO L125 PetriNetUnfolderBase]: For 201966/210997 co-relation queries the response was YES. [2024-11-28 03:05:20,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264164 conditions, 72295 events. 49645/72295 cut-off events. For 201966/210997 co-relation queries the response was YES. Maximal size of possible extension queue 3495. Compared 550583 event pairs, 3388 based on Foata normal form. 2824/73434 useless extension candidates. Maximal degree in co-relation 264132. Up to 27578 conditions per place. [2024-11-28 03:05:20,717 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 124 selfloop transitions, 18 changer transitions 50/212 dead transitions. [2024-11-28 03:05:20,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 212 transitions, 1743 flow [2024-11-28 03:05:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:05:20,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:05:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-11-28 03:05:20,718 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6243386243386243 [2024-11-28 03:05:20,718 INFO L175 Difference]: Start difference. First operand has 97 places, 101 transitions, 689 flow. Second operand 7 states and 236 transitions. [2024-11-28 03:05:20,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 212 transitions, 1743 flow