./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd --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 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:53:30,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:53:30,198 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 14:53:30,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:53:30,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:53:30,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:53:30,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:53:30,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:53:30,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:53:30,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:53:30,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:53:30,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:53:30,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:53:30,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:53:30,262 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:53:30,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:53:30,262 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:53:30,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:53:30,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:53:30,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:53:30,263 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 14:53:30,263 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 14:53:30,263 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 14:53:30,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:53:30,265 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:53:30,265 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:53:30,265 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:53:30,265 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:53:30,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:53:30,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:53:30,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:53:30,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:53:30,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:53:30,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:53:30,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:53:30,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:53:30,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:53:30,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:53:30,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:53:30,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:53:30,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:53:30,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:53:30,268 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_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 [2024-11-13 14:53:30,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:53:30,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:53:30,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:53:30,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:53:30,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:53:30,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/mix008.opt.i Unable to find full path for "g++" [2024-11-13 14:53:32,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:53:33,199 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:53:33,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2024-11-13 14:53:33,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/data/781e1db64/aca337370074432684816db0f1f9387c/FLAGb899c83fb [2024-11-13 14:53:33,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/data/781e1db64/aca337370074432684816db0f1f9387c [2024-11-13 14:53:33,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:53:33,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:53:33,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:53:33,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:53:33,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:53:33,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:33,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43281902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33, skipping insertion in model container [2024-11-13 14:53:33,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:33,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:53:33,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:53:33,801 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:53:33,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:53:33,974 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:53:33,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33 WrapperNode [2024-11-13 14:53:33,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:53:33,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:53:33,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:53:33,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:53:33,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,064 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 154 [2024-11-13 14:53:34,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:53:34,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:53:34,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:53:34,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:53:34,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,132 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]. [2024-11-13 14:53:34,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,160 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:53:34,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:53:34,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:53:34,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:53:34,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (1/1) ... [2024-11-13 14:53:34,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:53:34,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:53:34,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:53:34,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f39bc60-67fd-4d70-a74b-e0a84de603eb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:53:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 14:53:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:53:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 14:53:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 14:53:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 14:53:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 14:53:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 14:53:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 14:53:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-13 14:53:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-13 14:53:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:53:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 14:53:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:53:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:53:34,263 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:53:34,517 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:53:34,519 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:53:35,102 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:53:35,103 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:53:35,487 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:53:35,487 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:53:35,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:53:35 BoogieIcfgContainer [2024-11-13 14:53:35,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:53:35,492 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:53:35,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:53:35,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:53:35,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:53:33" (1/3) ... [2024-11-13 14:53:35,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ee0d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:53:35, skipping insertion in model container [2024-11-13 14:53:35,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:33" (2/3) ... [2024-11-13 14:53:35,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ee0d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:53:35, skipping insertion in model container [2024-11-13 14:53:35,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:53:35" (3/3) ... [2024-11-13 14:53:35,504 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2024-11-13 14:53:35,527 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:53:35,530 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG mix008.opt.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-13 14:53:35,531 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:53:35,652 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 14:53:35,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-13 14:53:35,751 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-13 14:53:35,753 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:53:35,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 105 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-13 14:53:35,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-13 14:53:35,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-13 14:53:35,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:53:35,801 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;@f5a19b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:53:35,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-13 14:53:35,826 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:53:35,827 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-13 14:53:35,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:53:35,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:53:35,828 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:35,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:53:35,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:35,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1776517179, now seen corresponding path program 1 times [2024-11-13 14:53:35,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:35,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264154926] [2024-11-13 14:53:35,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:35,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:36,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:36,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264154926] [2024-11-13 14:53:36,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264154926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:36,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:36,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 14:53:36,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232521818] [2024-11-13 14:53:36,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:36,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:53:36,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:36,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:53:36,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:53:36,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-11-13 14:53:36,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-13 14:53:36,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:53:36,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-11-13 14:53:36,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:53:37,818 INFO L124 PetriNetUnfolderBase]: 1175/2003 cut-off events. [2024-11-13 14:53:37,818 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:53:37,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3739 conditions, 2003 events. 1175/2003 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 14373 event pairs, 199 based on Foata normal form. 120/2089 useless extension candidates. Maximal degree in co-relation 3727. Up to 1361 conditions per place. [2024-11-13 14:53:37,867 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 30 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-11-13 14:53:37,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 196 flow [2024-11-13 14:53:37,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:53:37,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:53:37,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-11-13 14:53:37,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2024-11-13 14:53:37,894 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 123 transitions. [2024-11-13 14:53:37,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 196 flow [2024-11-13 14:53:37,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 14:53:37,913 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-13 14:53:37,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-13 14:53:37,924 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-13 14:53:37,925 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-13 14:53:37,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-13 14:53:37,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:53:37,926 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:37,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:53:37,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:53:37,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:37,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1913835471, now seen corresponding path program 1 times [2024-11-13 14:53:37,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:37,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960573299] [2024-11-13 14:53:37,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:37,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:38,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:38,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960573299] [2024-11-13 14:53:38,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960573299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:38,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:38,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 14:53:38,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363979362] [2024-11-13 14:53:38,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:38,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:53:38,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:38,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:53:38,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:53:38,115 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-13 14:53:38,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-13 14:53:38,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:53:38,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-13 14:53:38,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:53:38,678 INFO L124 PetriNetUnfolderBase]: 1027/1867 cut-off events. [2024-11-13 14:53:38,679 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-13 14:53:38,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 1867 events. 1027/1867 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 13914 event pairs, 1027 based on Foata normal form. 60/1881 useless extension candidates. Maximal degree in co-relation 3467. Up to 1484 conditions per place. [2024-11-13 14:53:38,701 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 20 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-13 14:53:38,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 146 flow [2024-11-13 14:53:38,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:53:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:53:38,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-13 14:53:38,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-13 14:53:38,704 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 104 transitions. [2024-11-13 14:53:38,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 146 flow [2024-11-13 14:53:38,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:53:38,706 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-13 14:53:38,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-13 14:53:38,707 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-13 14:53:38,708 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-13 14:53:38,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-13 14:53:38,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:53:38,708 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:38,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:53:38,709 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:53:38,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1913836789, now seen corresponding path program 1 times [2024-11-13 14:53:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:38,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037202710] [2024-11-13 14:53:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:39,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:39,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037202710] [2024-11-13 14:53:39,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037202710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:39,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:39,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:53:39,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815239928] [2024-11-13 14:53:39,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:39,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:53:39,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:39,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:53:39,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:53:39,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-13 14:53:39,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-13 14:53:39,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:53:39,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-13 14:53:39,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:53:44,287 INFO L124 PetriNetUnfolderBase]: 20301/30507 cut-off events. [2024-11-13 14:53:44,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:53:44,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58351 conditions, 30507 events. 20301/30507 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1730. Compared 237916 event pairs, 4674 based on Foata normal form. 0/29580 useless extension candidates. Maximal degree in co-relation 58345. Up to 10621 conditions per place. [2024-11-13 14:53:44,499 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 42 selfloop transitions, 9 changer transitions 91/157 dead transitions. [2024-11-13 14:53:44,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 157 transitions, 612 flow [2024-11-13 14:53:44,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:53:44,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 14:53:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 324 transitions. [2024-11-13 14:53:44,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-11-13 14:53:44,509 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 324 transitions. [2024-11-13 14:53:44,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 157 transitions, 612 flow [2024-11-13 14:53:44,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 157 transitions, 611 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 14:53:44,515 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 221 flow [2024-11-13 14:53:44,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=221, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-11-13 14:53:44,517 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-13 14:53:44,517 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 221 flow [2024-11-13 14:53:44,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-13 14:53:44,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:53:44,518 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:44,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:53:44,518 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:53:44,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:44,519 INFO L85 PathProgramCache]: Analyzing trace with hash -229067602, now seen corresponding path program 1 times [2024-11-13 14:53:44,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:44,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577349449] [2024-11-13 14:53:44,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:44,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:44,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:44,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577349449] [2024-11-13 14:53:44,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577349449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:44,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:44,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:53:44,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439860857] [2024-11-13 14:53:44,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:44,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:53:44,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:44,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:53:44,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:53:44,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-13 14:53:44,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2024-11-13 14:53:44,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:53:44,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-13 14:53:44,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:53:47,463 INFO L124 PetriNetUnfolderBase]: 10061/17731 cut-off events. [2024-11-13 14:53:47,463 INFO L125 PetriNetUnfolderBase]: For 21418/22698 co-relation queries the response was YES. [2024-11-13 14:53:47,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50268 conditions, 17731 events. 10061/17731 cut-off events. For 21418/22698 co-relation queries the response was YES. Maximal size of possible extension queue 1123. Compared 158001 event pairs, 2525 based on Foata normal form. 653/16971 useless extension candidates. Maximal degree in co-relation 50253. Up to 7526 conditions per place. [2024-11-13 14:53:47,782 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 35 selfloop transitions, 3 changer transitions 41/104 dead transitions. [2024-11-13 14:53:47,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 104 transitions, 605 flow [2024-11-13 14:53:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:53:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:53:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 244 transitions. [2024-11-13 14:53:47,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6337662337662338 [2024-11-13 14:53:47,784 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 221 flow. Second operand 7 states and 244 transitions. [2024-11-13 14:53:47,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 104 transitions, 605 flow [2024-11-13 14:53:47,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 104 transitions, 535 flow, removed 17 selfloop flow, removed 4 redundant places. [2024-11-13 14:53:47,840 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 206 flow [2024-11-13 14:53:47,841 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=206, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-11-13 14:53:47,842 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-13 14:53:47,843 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 206 flow [2024-11-13 14:53:47,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2024-11-13 14:53:47,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:53:47,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:47,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:53:47,844 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:53:47,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:47,845 INFO L85 PathProgramCache]: Analyzing trace with hash 611903499, now seen corresponding path program 1 times [2024-11-13 14:53:47,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:47,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439590778] [2024-11-13 14:53:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:47,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:48,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:48,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:48,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439590778] [2024-11-13 14:53:48,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439590778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:48,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:48,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:53:48,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536780219] [2024-11-13 14:53:48,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:48,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:53:48,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:48,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:53:48,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:53:48,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-13 14:53:48,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-11-13 14:53:48,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:53:48,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-13 14:53:48,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:53:50,672 INFO L124 PetriNetUnfolderBase]: 12092/19241 cut-off events. [2024-11-13 14:53:50,672 INFO L125 PetriNetUnfolderBase]: For 26651/26651 co-relation queries the response was YES. [2024-11-13 14:53:50,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55736 conditions, 19241 events. 12092/19241 cut-off events. For 26651/26651 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 149172 event pairs, 2201 based on Foata normal form. 380/19513 useless extension candidates. Maximal degree in co-relation 55718. Up to 8070 conditions per place. [2024-11-13 14:53:50,797 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 62 selfloop transitions, 13 changer transitions 70/160 dead transitions. [2024-11-13 14:53:50,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 160 transitions, 969 flow [2024-11-13 14:53:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:53:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:53:50,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 344 transitions. [2024-11-13 14:53:50,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6254545454545455 [2024-11-13 14:53:50,800 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 206 flow. Second operand 10 states and 344 transitions. [2024-11-13 14:53:50,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 160 transitions, 969 flow [2024-11-13 14:53:51,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 160 transitions, 933 flow, removed 14 selfloop flow, removed 6 redundant places. [2024-11-13 14:53:51,030 INFO L231 Difference]: Finished difference. Result has 77 places, 57 transitions, 295 flow [2024-11-13 14:53:51,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=295, PETRI_PLACES=77, PETRI_TRANSITIONS=57} [2024-11-13 14:53:51,031 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-13 14:53:51,034 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 57 transitions, 295 flow [2024-11-13 14:53:51,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-11-13 14:53:51,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:53:51,034 INFO L204 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] [2024-11-13 14:53:51,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:53:51,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:53:51,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:51,035 INFO L85 PathProgramCache]: Analyzing trace with hash 736359084, now seen corresponding path program 1 times [2024-11-13 14:53:51,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:51,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368690151] [2024-11-13 14:53:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:51,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:51,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:51,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368690151] [2024-11-13 14:53:51,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368690151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:51,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:51,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:53:51,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120932202] [2024-11-13 14:53:51,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:51,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:53:51,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:51,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:53:51,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:53:51,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-13 14:53:51,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 57 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:53:51,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:53:51,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-13 14:53:51,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:53:54,259 INFO L124 PetriNetUnfolderBase]: 10968/17666 cut-off events. [2024-11-13 14:53:54,259 INFO L125 PetriNetUnfolderBase]: For 40301/40301 co-relation queries the response was YES. [2024-11-13 14:53:54,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57662 conditions, 17666 events. 10968/17666 cut-off events. For 40301/40301 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 138164 event pairs, 2038 based on Foata normal form. 342/17829 useless extension candidates. Maximal degree in co-relation 57640. Up to 5706 conditions per place. [2024-11-13 14:53:54,367 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 60 selfloop transitions, 12 changer transitions 68/155 dead transitions. [2024-11-13 14:53:54,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 155 transitions, 1150 flow [2024-11-13 14:53:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:53:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:53:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 320 transitions. [2024-11-13 14:53:54,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5818181818181818 [2024-11-13 14:53:54,370 INFO L175 Difference]: Start difference. First operand has 77 places, 57 transitions, 295 flow. Second operand 10 states and 320 transitions. [2024-11-13 14:53:54,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 155 transitions, 1150 flow [2024-11-13 14:53:54,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 155 transitions, 1078 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-11-13 14:53:54,738 INFO L231 Difference]: Finished difference. Result has 84 places, 64 transitions, 412 flow [2024-11-13 14:53:54,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=412, PETRI_PLACES=84, PETRI_TRANSITIONS=64} [2024-11-13 14:53:54,739 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2024-11-13 14:53:54,739 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 64 transitions, 412 flow [2024-11-13 14:53:54,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:53:54,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:53:54,740 INFO L204 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] [2024-11-13 14:53:54,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:53:54,740 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:53:54,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:54,741 INFO L85 PathProgramCache]: Analyzing trace with hash 663365011, now seen corresponding path program 1 times [2024-11-13 14:53:54,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:54,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440735573] [2024-11-13 14:53:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:54,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:55,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:55,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:55,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440735573] [2024-11-13 14:53:55,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440735573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:55,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:55,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:53:55,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226371880] [2024-11-13 14:53:55,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:55,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:53:55,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:55,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:53:55,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:53:55,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-13 14:53:55,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 64 transitions, 412 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:53:55,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:53:55,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-13 14:53:55,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:53:59,701 INFO L124 PetriNetUnfolderBase]: 19638/30083 cut-off events. [2024-11-13 14:53:59,701 INFO L125 PetriNetUnfolderBase]: For 57661/64208 co-relation queries the response was YES. [2024-11-13 14:53:59,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84350 conditions, 30083 events. 19638/30083 cut-off events. For 57661/64208 co-relation queries the response was YES. Maximal size of possible extension queue 1404. Compared 229293 event pairs, 2922 based on Foata normal form. 1874/30768 useless extension candidates. Maximal degree in co-relation 84322. Up to 15831 conditions per place. [2024-11-13 14:54:00,036 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 58 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2024-11-13 14:54:00,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 98 transitions, 704 flow [2024-11-13 14:54:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:54:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 14:54:00,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-13 14:54:00,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2024-11-13 14:54:00,038 INFO L175 Difference]: Start difference. First operand has 84 places, 64 transitions, 412 flow. Second operand 4 states and 148 transitions. [2024-11-13 14:54:00,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 98 transitions, 704 flow [2024-11-13 14:54:00,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 98 transitions, 682 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-13 14:54:00,357 INFO L231 Difference]: Finished difference. Result has 79 places, 69 transitions, 440 flow [2024-11-13 14:54:00,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=440, PETRI_PLACES=79, PETRI_TRANSITIONS=69} [2024-11-13 14:54:00,358 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-11-13 14:54:00,358 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 69 transitions, 440 flow [2024-11-13 14:54:00,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:54:00,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:54:00,359 INFO L204 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] [2024-11-13 14:54:00,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:54:00,359 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:54:00,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:00,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1528578155, now seen corresponding path program 1 times [2024-11-13 14:54:00,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:00,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865533415] [2024-11-13 14:54:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:00,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:00,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:00,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:00,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865533415] [2024-11-13 14:54:00,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865533415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:00,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:00,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:54:00,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960968728] [2024-11-13 14:54:00,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:00,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:54:00,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:00,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:54:00,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:54:00,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-13 14:54:00,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 69 transitions, 440 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-11-13 14:54:00,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:54:00,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-13 14:54:00,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:54:07,981 INFO L124 PetriNetUnfolderBase]: 27390/43505 cut-off events. [2024-11-13 14:54:07,981 INFO L125 PetriNetUnfolderBase]: For 91142/92495 co-relation queries the response was YES. [2024-11-13 14:54:08,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142157 conditions, 43505 events. 27390/43505 cut-off events. For 91142/92495 co-relation queries the response was YES. Maximal size of possible extension queue 2047. Compared 370718 event pairs, 8814 based on Foata normal form. 642/40554 useless extension candidates. Maximal degree in co-relation 142129. Up to 15793 conditions per place. [2024-11-13 14:54:08,551 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 109 selfloop transitions, 35 changer transitions 8/172 dead transitions. [2024-11-13 14:54:08,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 172 transitions, 1301 flow [2024-11-13 14:54:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:54:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:54:08,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-11-13 14:54:08,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5981818181818181 [2024-11-13 14:54:08,558 INFO L175 Difference]: Start difference. First operand has 79 places, 69 transitions, 440 flow. Second operand 10 states and 329 transitions. [2024-11-13 14:54:08,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 172 transitions, 1301 flow [2024-11-13 14:54:08,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 172 transitions, 1279 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-11-13 14:54:08,914 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 817 flow [2024-11-13 14:54:08,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=817, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2024-11-13 14:54:08,915 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 30 predicate places. [2024-11-13 14:54:08,916 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 817 flow [2024-11-13 14:54:08,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-11-13 14:54:08,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:54:08,916 INFO L204 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] [2024-11-13 14:54:08,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:54:08,917 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:54:08,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:08,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1246863095, now seen corresponding path program 1 times [2024-11-13 14:54:08,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:08,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219804428] [2024-11-13 14:54:08,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:08,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:09,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:09,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219804428] [2024-11-13 14:54:09,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219804428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:09,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:09,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:54:09,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319282302] [2024-11-13 14:54:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:09,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:54:09,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:54:09,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:54:09,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-13 14:54:09,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 817 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2024-11-13 14:54:09,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:54:09,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-13 14:54:09,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:54:15,777 INFO L124 PetriNetUnfolderBase]: 28052/42920 cut-off events. [2024-11-13 14:54:15,777 INFO L125 PetriNetUnfolderBase]: For 89279/99217 co-relation queries the response was YES. [2024-11-13 14:54:16,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135568 conditions, 42920 events. 28052/42920 cut-off events. For 89279/99217 co-relation queries the response was YES. Maximal size of possible extension queue 1950. Compared 337029 event pairs, 2597 based on Foata normal form. 2820/44531 useless extension candidates. Maximal degree in co-relation 135534. Up to 17217 conditions per place. [2024-11-13 14:54:16,099 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 85 selfloop transitions, 10 changer transitions 11/150 dead transitions. [2024-11-13 14:54:16,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 150 transitions, 1410 flow [2024-11-13 14:54:16,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:54:16,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 14:54:16,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-11-13 14:54:16,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-11-13 14:54:16,101 INFO L175 Difference]: Start difference. First operand has 92 places, 91 transitions, 817 flow. Second operand 5 states and 189 transitions. [2024-11-13 14:54:16,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 150 transitions, 1410 flow [2024-11-13 14:54:16,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 150 transitions, 1390 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-11-13 14:54:16,514 INFO L231 Difference]: Finished difference. Result has 98 places, 87 transitions, 757 flow [2024-11-13 14:54:16,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=757, PETRI_PLACES=98, PETRI_TRANSITIONS=87} [2024-11-13 14:54:16,515 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 36 predicate places. [2024-11-13 14:54:16,515 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 87 transitions, 757 flow [2024-11-13 14:54:16,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2024-11-13 14:54:16,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:54:16,516 INFO L204 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] [2024-11-13 14:54:16,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:54:16,516 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:54:16,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:16,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1931955776, now seen corresponding path program 1 times [2024-11-13 14:54:16,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:16,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374600357] [2024-11-13 14:54:16,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:16,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:16,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:16,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374600357] [2024-11-13 14:54:16,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374600357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:16,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:16,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:54:16,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002522414] [2024-11-13 14:54:16,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:16,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:54:16,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:54:16,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:54:16,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-13 14:54:16,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 87 transitions, 757 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2024-11-13 14:54:16,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:54:16,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-13 14:54:16,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:54:23,184 INFO L124 PetriNetUnfolderBase]: 23515/41150 cut-off events. [2024-11-13 14:54:23,184 INFO L125 PetriNetUnfolderBase]: For 105052/111920 co-relation queries the response was YES. [2024-11-13 14:54:23,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138638 conditions, 41150 events. 23515/41150 cut-off events. For 105052/111920 co-relation queries the response was YES. Maximal size of possible extension queue 2510. Compared 398177 event pairs, 11429 based on Foata normal form. 1036/38294 useless extension candidates. Maximal degree in co-relation 138600. Up to 14323 conditions per place. [2024-11-13 14:54:23,601 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 54 selfloop transitions, 10 changer transitions 18/127 dead transitions. [2024-11-13 14:54:23,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 127 transitions, 1166 flow [2024-11-13 14:54:23,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:54:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 14:54:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 177 transitions. [2024-11-13 14:54:23,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436363636363637 [2024-11-13 14:54:23,603 INFO L175 Difference]: Start difference. First operand has 98 places, 87 transitions, 757 flow. Second operand 5 states and 177 transitions. [2024-11-13 14:54:23,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 127 transitions, 1166 flow [2024-11-13 14:54:24,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 127 transitions, 1139 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-11-13 14:54:24,459 INFO L231 Difference]: Finished difference. Result has 97 places, 89 transitions, 797 flow [2024-11-13 14:54:24,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=797, PETRI_PLACES=97, PETRI_TRANSITIONS=89} [2024-11-13 14:54:24,460 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 35 predicate places. [2024-11-13 14:54:24,460 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 89 transitions, 797 flow [2024-11-13 14:54:24,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2024-11-13 14:54:24,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:54:24,461 INFO L204 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] [2024-11-13 14:54:24,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:54:24,461 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:54:24,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:24,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1751135024, now seen corresponding path program 2 times [2024-11-13 14:54:24,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:24,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136334391] [2024-11-13 14:54:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:24,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:24,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:24,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:24,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136334391] [2024-11-13 14:54:24,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136334391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:24,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:24,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:54:24,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132010040] [2024-11-13 14:54:24,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:24,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:54:24,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:24,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:54:24,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:54:24,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-13 14:54:24,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 89 transitions, 797 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2024-11-13 14:54:24,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:54:24,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-13 14:54:24,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand