./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.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_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/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_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/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_0687dcfb-1034-41f9-98a2-a5786b7980dc/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 9565dcbef2b519c6326563c41ab6633c2e0b59b7d9ee2c8626de0cd3767b77b1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:08:01,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:08:01,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 14:08:01,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:08:01,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:08:01,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:08:01,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:08:01,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:08:01,756 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:08:01,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:08:01,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:08:01,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:08:01,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:08:01,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:08:01,757 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:08:01,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:08:01,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:08:01,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:08:01,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:08:01,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:08:01,757 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 14:08:01,758 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 14:08:01,758 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 14:08:01,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:08:01,758 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:08:01,758 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:08:01,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:08:01,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:08:01,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:08:01,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:08:01,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:08:01,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:08:01,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:08:01,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:08:01,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:08:01,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:08:01,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:08:01,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:08:01,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:08:01,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:08:01,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:08:01,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:08:01,762 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_0687dcfb-1034-41f9-98a2-a5786b7980dc/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 -> 9565dcbef2b519c6326563c41ab6633c2e0b59b7d9ee2c8626de0cd3767b77b1 [2024-11-13 14:08:02,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:08:02,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:08:02,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:08:02,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:08:02,113 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:08:02,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i Unable to find full path for "g++" [2024-11-13 14:08:04,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:08:04,308 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:08:04,309 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2024-11-13 14:08:04,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/data/140c9c30f/f12fdfd36ed84202a9f7d7d28497fada/FLAG32af3807a [2024-11-13 14:08:04,343 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/data/140c9c30f/f12fdfd36ed84202a9f7d7d28497fada [2024-11-13 14:08:04,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:08:04,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:08:04,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:08:04,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:08:04,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:08:04,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:04,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2883c547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04, skipping insertion in model container [2024-11-13 14:08:04,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:04,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:08:04,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:08:04,788 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:08:04,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:08:04,918 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:08:04,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04 WrapperNode [2024-11-13 14:08:04,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:08:04,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:08:04,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:08:04,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:08:04,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:04,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:04,997 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2024-11-13 14:08:04,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:08:04,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:08:05,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:08:05,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:08:05,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,020 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,056 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 14:08:05,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:08:05,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:08:05,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:08:05,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:08:05,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (1/1) ... [2024-11-13 14:08:05,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:08:05,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:08:05,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:08:05,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0687dcfb-1034-41f9-98a2-a5786b7980dc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:08:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 14:08:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:08:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 14:08:05,165 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 14:08:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 14:08:05,166 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 14:08:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 14:08:05,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 14:08:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-13 14:08:05,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-13 14:08:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:08:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 14:08:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:08:05,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:08:05,169 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 14:08:05,361 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:08:05,363 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:08:05,792 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:08:05,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:08:06,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:08:06,139 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:08:06,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:08:06 BoogieIcfgContainer [2024-11-13 14:08:06,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:08:06,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:08:06,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:08:06,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:08:06,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:08:04" (1/3) ... [2024-11-13 14:08:06,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f072efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:08:06, skipping insertion in model container [2024-11-13 14:08:06,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:08:04" (2/3) ... [2024-11-13 14:08:06,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f072efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:08:06, skipping insertion in model container [2024-11-13 14:08:06,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:08:06" (3/3) ... [2024-11-13 14:08:06,153 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.opt_pso.opt_rmo.opt.i [2024-11-13 14:08:06,174 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:08:06,176 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG mix030_power.opt_pso.opt_rmo.opt.i that has 5 procedures, 53 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-13 14:08:06,176 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:08:06,256 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 14:08:06,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-13 14:08:06,356 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-13 14:08:06,360 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:08:06,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-11-13 14:08:06,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-13 14:08:06,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-13 14:08:06,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:08:06,395 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;@663d76d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:08:06,395 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-13 14:08:06,407 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:08:06,407 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-11-13 14:08:06,407 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:08:06,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:06,412 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:08:06,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:06,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:06,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1018903755, now seen corresponding path program 1 times [2024-11-13 14:08:06,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:06,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134109734] [2024-11-13 14:08:06,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:06,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:07,024 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 14:08:07,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:07,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134109734] [2024-11-13 14:08:07,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134109734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:07,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:07,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 14:08:07,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188646073] [2024-11-13 14:08:07,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:07,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:08:07,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:08:07,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:08:07,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 54 [2024-11-13 14:08:07,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 14:08:07,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:07,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 54 [2024-11-13 14:08:07,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:08,036 INFO L124 PetriNetUnfolderBase]: 1711/2911 cut-off events. [2024-11-13 14:08:08,037 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-13 14:08:08,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5407 conditions, 2911 events. 1711/2911 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 21185 event pairs, 310 based on Foata normal form. 144/3000 useless extension candidates. Maximal degree in co-relation 5395. Up to 1924 conditions per place. [2024-11-13 14:08:08,068 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 35 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2024-11-13 14:08:08,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 61 transitions, 215 flow [2024-11-13 14:08:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:08:08,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:08:08,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2024-11-13 14:08:08,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7530864197530864 [2024-11-13 14:08:08,086 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 122 transitions. [2024-11-13 14:08:08,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 61 transitions, 215 flow [2024-11-13 14:08:08,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 14:08:08,103 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-13 14:08:08,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-11-13 14:08:08,110 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-13 14:08:08,111 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-13 14:08:08,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 14:08:08,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:08,111 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 14:08:08,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:08:08,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:08,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:08,114 INFO L85 PathProgramCache]: Analyzing trace with hash 89143504, now seen corresponding path program 1 times [2024-11-13 14:08:08,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:08,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256672082] [2024-11-13 14:08:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:08,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:08,290 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 14:08:08,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:08,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256672082] [2024-11-13 14:08:08,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256672082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:08,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:08,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 14:08:08,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713821126] [2024-11-13 14:08:08,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:08,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:08:08,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:08,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:08:08,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:08:08,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-11-13 14:08:08,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:08:08,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:08,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-11-13 14:08:08,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:08,930 INFO L124 PetriNetUnfolderBase]: 1525/2605 cut-off events. [2024-11-13 14:08:08,930 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-13 14:08:08,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4997 conditions, 2605 events. 1525/2605 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 19317 event pairs, 1525 based on Foata normal form. 72/2550 useless extension candidates. Maximal degree in co-relation 4987. Up to 2166 conditions per place. [2024-11-13 14:08:08,952 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 21 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-13 14:08:08,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 146 flow [2024-11-13 14:08:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:08:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:08:08,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-11-13 14:08:08,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-13 14:08:08,958 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 99 transitions. [2024-11-13 14:08:08,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 146 flow [2024-11-13 14:08:08,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:08:08,962 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-13 14:08:08,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-13 14:08:08,964 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-13 14:08:08,964 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-13 14:08:08,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:08:08,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:08,965 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 14:08:08,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:08:08,966 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:08,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:08,966 INFO L85 PathProgramCache]: Analyzing trace with hash 89144823, now seen corresponding path program 1 times [2024-11-13 14:08:08,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:08,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682188921] [2024-11-13 14:08:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:08,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:10,101 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 14:08:10,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:10,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682188921] [2024-11-13 14:08:10,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682188921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:10,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:10,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:08:10,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99692597] [2024-11-13 14:08:10,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:10,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:08:10,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:10,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:08:10,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:08:10,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-11-13 14:08:10,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 14:08:10,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:10,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-11-13 14:08:10,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:14,785 INFO L124 PetriNetUnfolderBase]: 18596/28336 cut-off events. [2024-11-13 14:08:14,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:08:14,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53881 conditions, 28336 events. 18596/28336 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1457. Compared 218164 event pairs, 895 based on Foata normal form. 0/27707 useless extension candidates. Maximal degree in co-relation 53875. Up to 11148 conditions per place. [2024-11-13 14:08:14,949 INFO L140 encePairwiseOnDemand]: 38/54 looper letters, 57 selfloop transitions, 14 changer transitions 116/201 dead transitions. [2024-11-13 14:08:14,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 201 transitions, 796 flow [2024-11-13 14:08:14,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:08:14,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 14:08:14,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 418 transitions. [2024-11-13 14:08:14,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6450617283950617 [2024-11-13 14:08:14,957 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 12 states and 418 transitions. [2024-11-13 14:08:14,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 201 transitions, 796 flow [2024-11-13 14:08:14,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 201 transitions, 795 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 14:08:14,962 INFO L231 Difference]: Finished difference. Result has 75 places, 55 transitions, 261 flow [2024-11-13 14:08:14,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=261, PETRI_PLACES=75, PETRI_TRANSITIONS=55} [2024-11-13 14:08:14,964 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 14 predicate places. [2024-11-13 14:08:14,964 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 55 transitions, 261 flow [2024-11-13 14:08:14,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 14:08:14,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:14,965 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 14:08:14,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:08:14,965 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:14,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:14,966 INFO L85 PathProgramCache]: Analyzing trace with hash -866372426, now seen corresponding path program 1 times [2024-11-13 14:08:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:14,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780049790] [2024-11-13 14:08:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:14,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:15,677 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 14:08:15,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:15,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780049790] [2024-11-13 14:08:15,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780049790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:15,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:15,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:08:15,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903037136] [2024-11-13 14:08:15,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:15,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:08:15,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:15,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:08:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:08:15,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-11-13 14:08:15,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 55 transitions, 261 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 14:08:15,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:15,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-11-13 14:08:15,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:18,967 INFO L124 PetriNetUnfolderBase]: 14165/22111 cut-off events. [2024-11-13 14:08:18,967 INFO L125 PetriNetUnfolderBase]: For 42171/42171 co-relation queries the response was YES. [2024-11-13 14:08:19,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76394 conditions, 22111 events. 14165/22111 cut-off events. For 42171/42171 co-relation queries the response was YES. Maximal size of possible extension queue 1157. Compared 169790 event pairs, 1788 based on Foata normal form. 537/22578 useless extension candidates. Maximal degree in co-relation 76376. Up to 10669 conditions per place. [2024-11-13 14:08:19,175 INFO L140 encePairwiseOnDemand]: 39/54 looper letters, 56 selfloop transitions, 25 changer transitions 84/179 dead transitions. [2024-11-13 14:08:19,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 179 transitions, 1331 flow [2024-11-13 14:08:19,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:08:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:08:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 331 transitions. [2024-11-13 14:08:19,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6129629629629629 [2024-11-13 14:08:19,177 INFO L175 Difference]: Start difference. First operand has 75 places, 55 transitions, 261 flow. Second operand 10 states and 331 transitions. [2024-11-13 14:08:19,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 179 transitions, 1331 flow [2024-11-13 14:08:19,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 179 transitions, 1233 flow, removed 49 selfloop flow, removed 4 redundant places. [2024-11-13 14:08:19,464 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 521 flow [2024-11-13 14:08:19,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=521, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2024-11-13 14:08:19,466 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 19 predicate places. [2024-11-13 14:08:19,466 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 521 flow [2024-11-13 14:08:19,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 14:08:19,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:19,467 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] [2024-11-13 14:08:19,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:08:19,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:19,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:19,468 INFO L85 PathProgramCache]: Analyzing trace with hash 236952277, now seen corresponding path program 1 times [2024-11-13 14:08:19,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:19,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584979498] [2024-11-13 14:08:19,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:19,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:19,947 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 14:08:19,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584979498] [2024-11-13 14:08:19,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584979498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:19,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:19,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:08:19,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589651545] [2024-11-13 14:08:19,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:19,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:08:19,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:19,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:08:19,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:08:19,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-11-13 14:08:19,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 521 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 14:08:19,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:19,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-11-13 14:08:19,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:22,135 INFO L124 PetriNetUnfolderBase]: 9668/15882 cut-off events. [2024-11-13 14:08:22,135 INFO L125 PetriNetUnfolderBase]: For 48448/50741 co-relation queries the response was YES. [2024-11-13 14:08:22,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63569 conditions, 15882 events. 9668/15882 cut-off events. For 48448/50741 co-relation queries the response was YES. Maximal size of possible extension queue 867. Compared 126471 event pairs, 1913 based on Foata normal form. 1332/16241 useless extension candidates. Maximal degree in co-relation 63544. Up to 7280 conditions per place. [2024-11-13 14:08:22,253 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 73 selfloop transitions, 11 changer transitions 16/137 dead transitions. [2024-11-13 14:08:22,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 137 transitions, 1187 flow [2024-11-13 14:08:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:08:22,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:08:22,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 235 transitions. [2024-11-13 14:08:22,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6216931216931217 [2024-11-13 14:08:22,255 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 521 flow. Second operand 7 states and 235 transitions. [2024-11-13 14:08:22,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 137 transitions, 1187 flow [2024-11-13 14:08:22,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 137 transitions, 1157 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-13 14:08:22,440 INFO L231 Difference]: Finished difference. Result has 81 places, 80 transitions, 604 flow [2024-11-13 14:08:22,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=604, PETRI_PLACES=81, PETRI_TRANSITIONS=80} [2024-11-13 14:08:22,441 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 20 predicate places. [2024-11-13 14:08:22,442 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 80 transitions, 604 flow [2024-11-13 14:08:22,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 14:08:22,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:22,442 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 14:08:22,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:08:22,443 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:22,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:22,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2116914899, now seen corresponding path program 1 times [2024-11-13 14:08:22,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:22,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724265780] [2024-11-13 14:08:22,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:22,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:23,192 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 14:08:23,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:23,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724265780] [2024-11-13 14:08:23,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724265780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:23,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:23,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:08:23,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861875799] [2024-11-13 14:08:23,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:23,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:08:23,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:23,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:08:23,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:08:23,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-11-13 14:08:23,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 80 transitions, 604 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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 14:08:23,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:23,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-11-13 14:08:23,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:27,214 INFO L124 PetriNetUnfolderBase]: 15230/24487 cut-off events. [2024-11-13 14:08:27,214 INFO L125 PetriNetUnfolderBase]: For 67935/71030 co-relation queries the response was YES. [2024-11-13 14:08:27,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96932 conditions, 24487 events. 15230/24487 cut-off events. For 67935/71030 co-relation queries the response was YES. Maximal size of possible extension queue 1441. Compared 202575 event pairs, 4241 based on Foata normal form. 2119/24947 useless extension candidates. Maximal degree in co-relation 96904. Up to 12896 conditions per place. [2024-11-13 14:08:27,371 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 66 selfloop transitions, 15 changer transitions 21/145 dead transitions. [2024-11-13 14:08:27,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 145 transitions, 1237 flow [2024-11-13 14:08:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:08:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:08:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-11-13 14:08:27,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6243386243386243 [2024-11-13 14:08:27,372 INFO L175 Difference]: Start difference. First operand has 81 places, 80 transitions, 604 flow. Second operand 7 states and 236 transitions. [2024-11-13 14:08:27,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 145 transitions, 1237 flow [2024-11-13 14:08:27,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 145 transitions, 1213 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-13 14:08:27,560 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 782 flow [2024-11-13 14:08:27,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=782, PETRI_PLACES=87, PETRI_TRANSITIONS=94} [2024-11-13 14:08:27,560 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 26 predicate places. [2024-11-13 14:08:27,561 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 782 flow [2024-11-13 14:08:27,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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 14:08:27,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:27,561 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] [2024-11-13 14:08:27,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:08:27,561 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:27,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:27,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1425944932, now seen corresponding path program 1 times [2024-11-13 14:08:27,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:27,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155082441] [2024-11-13 14:08:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:27,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:27,972 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 14:08:27,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:27,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155082441] [2024-11-13 14:08:27,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155082441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:27,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:27,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:08:27,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326216695] [2024-11-13 14:08:27,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:27,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:08:27,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:27,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:08:27,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:08:27,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-11-13 14:08:27,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 782 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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 14:08:27,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:27,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-11-13 14:08:27,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:32,417 INFO L124 PetriNetUnfolderBase]: 17341/27859 cut-off events. [2024-11-13 14:08:32,417 INFO L125 PetriNetUnfolderBase]: For 104896/108456 co-relation queries the response was YES. [2024-11-13 14:08:32,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118320 conditions, 27859 events. 17341/27859 cut-off events. For 104896/108456 co-relation queries the response was YES. Maximal size of possible extension queue 1682. Compared 235522 event pairs, 4214 based on Foata normal form. 2140/28060 useless extension candidates. Maximal degree in co-relation 118290. Up to 15203 conditions per place. [2024-11-13 14:08:32,594 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 67 selfloop transitions, 21 changer transitions 49/180 dead transitions. [2024-11-13 14:08:32,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 180 transitions, 1696 flow [2024-11-13 14:08:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:08:32,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 14:08:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 272 transitions. [2024-11-13 14:08:32,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-11-13 14:08:32,596 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 782 flow. Second operand 8 states and 272 transitions. [2024-11-13 14:08:32,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 180 transitions, 1696 flow [2024-11-13 14:08:32,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 180 transitions, 1690 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-13 14:08:32,894 INFO L231 Difference]: Finished difference. Result has 99 places, 105 transitions, 972 flow [2024-11-13 14:08:32,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=972, PETRI_PLACES=99, PETRI_TRANSITIONS=105} [2024-11-13 14:08:32,895 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 38 predicate places. [2024-11-13 14:08:32,895 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 105 transitions, 972 flow [2024-11-13 14:08:32,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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 14:08:32,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:32,895 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] [2024-11-13 14:08:32,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:08:32,895 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:32,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:32,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2101695914, now seen corresponding path program 2 times [2024-11-13 14:08:32,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:32,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088858359] [2024-11-13 14:08:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:32,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:33,631 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 14:08:33,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:33,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088858359] [2024-11-13 14:08:33,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088858359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:33,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:33,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:08:33,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677982371] [2024-11-13 14:08:33,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:33,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:08:33,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:33,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:08:33,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:08:33,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-11-13 14:08:33,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 105 transitions, 972 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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 14:08:33,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:33,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-11-13 14:08:33,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:38,494 INFO L124 PetriNetUnfolderBase]: 17118/27591 cut-off events. [2024-11-13 14:08:38,494 INFO L125 PetriNetUnfolderBase]: For 149183/153541 co-relation queries the response was YES. [2024-11-13 14:08:38,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127164 conditions, 27591 events. 17118/27591 cut-off events. For 149183/153541 co-relation queries the response was YES. Maximal size of possible extension queue 1675. Compared 234020 event pairs, 4190 based on Foata normal form. 2584/28255 useless extension candidates. Maximal degree in co-relation 127127. Up to 15155 conditions per place. [2024-11-13 14:08:38,869 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 69 selfloop transitions, 26 changer transitions 68/206 dead transitions. [2024-11-13 14:08:38,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 206 transitions, 2228 flow [2024-11-13 14:08:38,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:08:38,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:08:38,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 332 transitions. [2024-11-13 14:08:38,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2024-11-13 14:08:38,871 INFO L175 Difference]: Start difference. First operand has 99 places, 105 transitions, 972 flow. Second operand 10 states and 332 transitions. [2024-11-13 14:08:38,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 206 transitions, 2228 flow [2024-11-13 14:08:39,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 206 transitions, 2127 flow, removed 39 selfloop flow, removed 5 redundant places. [2024-11-13 14:08:39,739 INFO L231 Difference]: Finished difference. Result has 106 places, 113 transitions, 1152 flow [2024-11-13 14:08:39,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1152, PETRI_PLACES=106, PETRI_TRANSITIONS=113} [2024-11-13 14:08:39,740 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 45 predicate places. [2024-11-13 14:08:39,740 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 113 transitions, 1152 flow [2024-11-13 14:08:39,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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 14:08:39,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:39,740 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] [2024-11-13 14:08:39,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:08:39,749 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:39,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:39,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1717412089, now seen corresponding path program 1 times [2024-11-13 14:08:39,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:39,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589521722] [2024-11-13 14:08:39,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:39,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:41,527 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 14:08:41,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:41,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589521722] [2024-11-13 14:08:41,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589521722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:41,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:41,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:08:41,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443941763] [2024-11-13 14:08:41,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:41,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:08:41,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:41,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:08:41,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:08:41,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-13 14:08:41,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 113 transitions, 1152 flow. Second operand has 8 states, 8 states have (on average 22.25) internal successors, (178), 8 states have internal predecessors, (178), 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 14:08:41,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:41,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-13 14:08:41,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:08:47,024 INFO L124 PetriNetUnfolderBase]: 21509/34037 cut-off events. [2024-11-13 14:08:47,024 INFO L125 PetriNetUnfolderBase]: For 244344/246927 co-relation queries the response was YES. [2024-11-13 14:08:47,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167536 conditions, 34037 events. 21509/34037 cut-off events. For 244344/246927 co-relation queries the response was YES. Maximal size of possible extension queue 1957. Compared 284933 event pairs, 3173 based on Foata normal form. 2255/34918 useless extension candidates. Maximal degree in co-relation 167495. Up to 15297 conditions per place. [2024-11-13 14:08:47,262 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 113 selfloop transitions, 14 changer transitions 118/268 dead transitions. [2024-11-13 14:08:47,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 268 transitions, 3202 flow [2024-11-13 14:08:47,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:08:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:08:47,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2024-11-13 14:08:47,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5981481481481481 [2024-11-13 14:08:47,265 INFO L175 Difference]: Start difference. First operand has 106 places, 113 transitions, 1152 flow. Second operand 10 states and 323 transitions. [2024-11-13 14:08:47,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 268 transitions, 3202 flow [2024-11-13 14:08:47,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 268 transitions, 3137 flow, removed 25 selfloop flow, removed 5 redundant places. [2024-11-13 14:08:47,862 INFO L231 Difference]: Finished difference. Result has 109 places, 104 transitions, 1099 flow [2024-11-13 14:08:47,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1099, PETRI_PLACES=109, PETRI_TRANSITIONS=104} [2024-11-13 14:08:47,863 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 48 predicate places. [2024-11-13 14:08:47,863 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 104 transitions, 1099 flow [2024-11-13 14:08:47,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.25) internal successors, (178), 8 states have internal predecessors, (178), 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 14:08:47,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:08:47,864 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] [2024-11-13 14:08:47,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:08:47,864 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:08:47,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:47,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1954858280, now seen corresponding path program 1 times [2024-11-13 14:08:47,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:47,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720162690] [2024-11-13 14:08:47,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:47,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:48,542 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 14:08:48,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:48,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720162690] [2024-11-13 14:08:48,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720162690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:08:48,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:08:48,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:08:48,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286489026] [2024-11-13 14:08:48,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:08:48,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:08:48,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:08:48,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:08:48,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:08:48,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-11-13 14:08:48,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 104 transitions, 1099 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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 14:08:48,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:08:48,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-11-13 14:08:48,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand