./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-atomic/lamport.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_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/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_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-atomic/lamport.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/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_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/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 6b308ef82643f3d5bfbffb17cfcc4180faf3590c2e3fc7a25c3079a0f6ea799c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:15:24,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:15:24,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 15:15:24,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:15:24,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:15:24,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:15:24,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:15:24,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:15:24,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:15:24,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:15:24,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:15:24,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:15:24,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:15:24,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:15:24,939 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:15:24,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:15:24,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:15:24,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:15:24,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:15:24,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:15:24,940 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:15:24,940 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:15:24,940 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 15:15:24,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:15:24,940 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:15:24,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:15:24,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:15:24,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:15:24,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:15:24,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:15:24,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:15:24,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:15:24,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:15:24,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:15:24,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:15:24,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:15:24,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:15:24,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:15:24,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:15:24,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:15:24,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:15:24,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:15:24,944 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_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/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 -> 6b308ef82643f3d5bfbffb17cfcc4180faf3590c2e3fc7a25c3079a0f6ea799c [2024-11-13 15:15:25,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:15:25,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:15:25,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:15:25,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:15:25,309 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:15:25,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-atomic/lamport.i Unable to find full path for "g++" [2024-11-13 15:15:27,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:15:27,738 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:15:27,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/sv-benchmarks/c/pthread-atomic/lamport.i [2024-11-13 15:15:27,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/data/4fbe05e34/af2d6d6b44a146b69945c1beb05ab054/FLAGc6ae3e8d3 [2024-11-13 15:15:27,979 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/data/4fbe05e34/af2d6d6b44a146b69945c1beb05ab054 [2024-11-13 15:15:27,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:15:27,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:15:27,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:15:27,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:15:27,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:15:27,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:15:27" (1/1) ... [2024-11-13 15:15:27,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8f816d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:27, skipping insertion in model container [2024-11-13 15:15:27,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:15:27" (1/1) ... [2024-11-13 15:15:28,037 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:15:28,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:15:28,545 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:15:28,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:15:28,673 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:15:28,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28 WrapperNode [2024-11-13 15:15:28,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:15:28,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:15:28,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:15:28,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:15:28,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,732 INFO L138 Inliner]: procedures = 166, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2024-11-13 15:15:28,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:15:28,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:15:28,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:15:28,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:15:28,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,749 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,769 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 15:15:28,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:15:28,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:15:28,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:15:28,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:15:28,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (1/1) ... [2024-11-13 15:15:28,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:15:28,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:28,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:15:28,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-13 15:15:28,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-13 15:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-13 15:15:28,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-13 15:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:15:28,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:15:28,872 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 15:15:29,081 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:15:29,084 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:15:29,341 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:15:29,341 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:15:29,451 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:15:29,456 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-13 15:15:29,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:29 BoogieIcfgContainer [2024-11-13 15:15:29,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:15:29,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:15:29,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:15:29,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:15:29,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:15:27" (1/3) ... [2024-11-13 15:15:29,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1603f2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:15:29, skipping insertion in model container [2024-11-13 15:15:29,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:28" (2/3) ... [2024-11-13 15:15:29,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1603f2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:15:29, skipping insertion in model container [2024-11-13 15:15:29,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:29" (3/3) ... [2024-11-13 15:15:29,469 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport.i [2024-11-13 15:15:29,488 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:15:29,490 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG lamport.i that has 3 procedures, 59 locations, 1 initial locations, 8 loop locations, and 3 error locations. [2024-11-13 15:15:29,490 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:15:29,593 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:15:29,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 78 transitions, 170 flow [2024-11-13 15:15:29,725 INFO L124 PetriNetUnfolderBase]: 20/76 cut-off events. [2024-11-13 15:15:29,729 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 15:15:29,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 76 events. 20/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 197 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 71. Up to 4 conditions per place. [2024-11-13 15:15:29,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 78 transitions, 170 flow [2024-11-13 15:15:29,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 75 transitions, 162 flow [2024-11-13 15:15:29,757 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:15:29,781 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;@6d2a2306, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:15:29,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 15:15:29,796 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:15:29,797 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2024-11-13 15:15:29,797 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:15:29,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:29,798 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:29,798 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:29,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1021192326, now seen corresponding path program 1 times [2024-11-13 15:15:29,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:29,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039759268] [2024-11-13 15:15:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:30,068 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 15:15:30,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:30,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039759268] [2024-11-13 15:15:30,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039759268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:30,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:30,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:15:30,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455091367] [2024-11-13 15:15:30,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:30,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:15:30,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:30,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:15:30,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:15:30,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 78 [2024-11-13 15:15:30,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 75 transitions, 162 flow. Second operand has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 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 15:15:30,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:30,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 78 [2024-11-13 15:15:30,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:30,361 INFO L124 PetriNetUnfolderBase]: 186/447 cut-off events. [2024-11-13 15:15:30,361 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-13 15:15:30,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 447 events. 186/447 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2248 event pairs, 58 based on Foata normal form. 92/453 useless extension candidates. Maximal degree in co-relation 632. Up to 212 conditions per place. [2024-11-13 15:15:30,370 INFO L140 encePairwiseOnDemand]: 70/78 looper letters, 17 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2024-11-13 15:15:30,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 176 flow [2024-11-13 15:15:30,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:15:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 15:15:30,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 129 transitions. [2024-11-13 15:15:30,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8269230769230769 [2024-11-13 15:15:30,395 INFO L175 Difference]: Start difference. First operand has 62 places, 75 transitions, 162 flow. Second operand 2 states and 129 transitions. [2024-11-13 15:15:30,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 176 flow [2024-11-13 15:15:30,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 168 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 15:15:30,416 INFO L231 Difference]: Finished difference. Result has 57 places, 65 transitions, 134 flow [2024-11-13 15:15:30,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=57, PETRI_TRANSITIONS=65} [2024-11-13 15:15:30,423 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -5 predicate places. [2024-11-13 15:15:30,424 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 65 transitions, 134 flow [2024-11-13 15:15:30,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 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 15:15:30,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:30,427 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:30,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:15:30,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:30,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:30,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2127573239, now seen corresponding path program 1 times [2024-11-13 15:15:30,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:30,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539474699] [2024-11-13 15:15:30,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:30,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:30,574 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 15:15:30,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:30,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539474699] [2024-11-13 15:15:30,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539474699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:30,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:30,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:30,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704257383] [2024-11-13 15:15:30,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:30,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:30,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:30,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:30,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:30,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 78 [2024-11-13 15:15:30,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 65 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 15:15:30,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:30,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 78 [2024-11-13 15:15:30,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:30,823 INFO L124 PetriNetUnfolderBase]: 234/563 cut-off events. [2024-11-13 15:15:30,823 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-13 15:15:30,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 563 events. 234/563 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3143 event pairs, 44 based on Foata normal form. 15/484 useless extension candidates. Maximal degree in co-relation 879. Up to 169 conditions per place. [2024-11-13 15:15:30,838 INFO L140 encePairwiseOnDemand]: 73/78 looper letters, 27 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-13 15:15:30,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 75 transitions, 216 flow [2024-11-13 15:15:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-11-13 15:15:30,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7649572649572649 [2024-11-13 15:15:30,843 INFO L175 Difference]: Start difference. First operand has 57 places, 65 transitions, 134 flow. Second operand 3 states and 179 transitions. [2024-11-13 15:15:30,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 75 transitions, 216 flow [2024-11-13 15:15:30,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 75 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:15:30,850 INFO L231 Difference]: Finished difference. Result has 61 places, 66 transitions, 154 flow [2024-11-13 15:15:30,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=61, PETRI_TRANSITIONS=66} [2024-11-13 15:15:30,851 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -1 predicate places. [2024-11-13 15:15:30,851 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 66 transitions, 154 flow [2024-11-13 15:15:30,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 15:15:30,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:30,852 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:30,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:15:30,852 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:30,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:30,854 INFO L85 PathProgramCache]: Analyzing trace with hash -297992755, now seen corresponding path program 1 times [2024-11-13 15:15:30,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:30,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164890891] [2024-11-13 15:15:30,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:30,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:30,993 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 15:15:30,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:30,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164890891] [2024-11-13 15:15:30,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164890891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:30,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:30,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:30,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322549259] [2024-11-13 15:15:30,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:30,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:30,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:30,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:31,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 78 [2024-11-13 15:15:31,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 66 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:15:31,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:31,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 78 [2024-11-13 15:15:31,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:31,167 INFO L124 PetriNetUnfolderBase]: 217/546 cut-off events. [2024-11-13 15:15:31,167 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-13 15:15:31,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 546 events. 217/546 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3050 event pairs, 61 based on Foata normal form. 19/475 useless extension candidates. Maximal degree in co-relation 949. Up to 208 conditions per place. [2024-11-13 15:15:31,176 INFO L140 encePairwiseOnDemand]: 74/78 looper letters, 27 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-11-13 15:15:31,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 74 transitions, 230 flow [2024-11-13 15:15:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:31,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-11-13 15:15:31,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7606837606837606 [2024-11-13 15:15:31,179 INFO L175 Difference]: Start difference. First operand has 61 places, 66 transitions, 154 flow. Second operand 3 states and 178 transitions. [2024-11-13 15:15:31,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 74 transitions, 230 flow [2024-11-13 15:15:31,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 74 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:15:31,185 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 158 flow [2024-11-13 15:15:31,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2024-11-13 15:15:31,186 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 0 predicate places. [2024-11-13 15:15:31,186 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 158 flow [2024-11-13 15:15:31,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:15:31,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:31,188 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 15:15:31,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:15:31,188 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:31,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash 135029386, now seen corresponding path program 1 times [2024-11-13 15:15:31,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:31,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535636538] [2024-11-13 15:15:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:31,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:31,296 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 15:15:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535636538] [2024-11-13 15:15:31,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535636538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:31,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:31,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:31,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020730790] [2024-11-13 15:15:31,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:31,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:31,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:31,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:31,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:31,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 78 [2024-11-13 15:15:31,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 15:15:31,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:31,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 78 [2024-11-13 15:15:31,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:31,634 INFO L124 PetriNetUnfolderBase]: 431/985 cut-off events. [2024-11-13 15:15:31,635 INFO L125 PetriNetUnfolderBase]: For 112/116 co-relation queries the response was YES. [2024-11-13 15:15:31,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1744 conditions, 985 events. 431/985 cut-off events. For 112/116 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6077 event pairs, 150 based on Foata normal form. 20/930 useless extension candidates. Maximal degree in co-relation 1738. Up to 471 conditions per place. [2024-11-13 15:15:31,644 INFO L140 encePairwiseOnDemand]: 68/78 looper letters, 33 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-13 15:15:31,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 78 transitions, 263 flow [2024-11-13 15:15:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:31,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:31,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2024-11-13 15:15:31,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7350427350427351 [2024-11-13 15:15:31,648 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 158 flow. Second operand 3 states and 172 transitions. [2024-11-13 15:15:31,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 78 transitions, 263 flow [2024-11-13 15:15:31,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 78 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:15:31,656 INFO L231 Difference]: Finished difference. Result has 65 places, 70 transitions, 202 flow [2024-11-13 15:15:31,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=65, PETRI_TRANSITIONS=70} [2024-11-13 15:15:31,660 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places. [2024-11-13 15:15:31,661 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 70 transitions, 202 flow [2024-11-13 15:15:31,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 15:15:31,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:31,662 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 15:15:31,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:15:31,664 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:31,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:31,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1957240696, now seen corresponding path program 2 times [2024-11-13 15:15:31,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:31,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051112490] [2024-11-13 15:15:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:31,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:31,779 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 15:15:31,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:31,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051112490] [2024-11-13 15:15:31,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051112490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:31,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:31,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:31,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058884552] [2024-11-13 15:15:31,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:31,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:31,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:31,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:31,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:31,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 78 [2024-11-13 15:15:31,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 15:15:31,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:31,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 78 [2024-11-13 15:15:31,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:32,081 INFO L124 PetriNetUnfolderBase]: 589/1499 cut-off events. [2024-11-13 15:15:32,082 INFO L125 PetriNetUnfolderBase]: For 224/256 co-relation queries the response was YES. [2024-11-13 15:15:32,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2834 conditions, 1499 events. 589/1499 cut-off events. For 224/256 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11002 event pairs, 165 based on Foata normal form. 35/1366 useless extension candidates. Maximal degree in co-relation 2827. Up to 391 conditions per place. [2024-11-13 15:15:32,098 INFO L140 encePairwiseOnDemand]: 73/78 looper letters, 33 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2024-11-13 15:15:32,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 84 transitions, 310 flow [2024-11-13 15:15:32,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-11-13 15:15:32,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7649572649572649 [2024-11-13 15:15:32,101 INFO L175 Difference]: Start difference. First operand has 65 places, 70 transitions, 202 flow. Second operand 3 states and 179 transitions. [2024-11-13 15:15:32,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 84 transitions, 310 flow [2024-11-13 15:15:32,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 84 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:15:32,113 INFO L231 Difference]: Finished difference. Result has 67 places, 73 transitions, 220 flow [2024-11-13 15:15:32,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=67, PETRI_TRANSITIONS=73} [2024-11-13 15:15:32,115 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2024-11-13 15:15:32,117 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 73 transitions, 220 flow [2024-11-13 15:15:32,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 15:15:32,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:32,118 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 15:15:32,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:15:32,119 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:32,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:32,119 INFO L85 PathProgramCache]: Analyzing trace with hash 283763106, now seen corresponding path program 3 times [2024-11-13 15:15:32,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:32,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696343181] [2024-11-13 15:15:32,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:32,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:32,207 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 15:15:32,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:32,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696343181] [2024-11-13 15:15:32,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696343181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:32,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:32,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:32,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141981347] [2024-11-13 15:15:32,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:32,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:32,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:32,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:32,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:32,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 78 [2024-11-13 15:15:32,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 73 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 15:15:32,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:32,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 78 [2024-11-13 15:15:32,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:32,534 INFO L124 PetriNetUnfolderBase]: 648/1653 cut-off events. [2024-11-13 15:15:32,535 INFO L125 PetriNetUnfolderBase]: For 418/491 co-relation queries the response was YES. [2024-11-13 15:15:32,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3460 conditions, 1653 events. 648/1653 cut-off events. For 418/491 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 12223 event pairs, 265 based on Foata normal form. 81/1656 useless extension candidates. Maximal degree in co-relation 3452. Up to 774 conditions per place. [2024-11-13 15:15:32,550 INFO L140 encePairwiseOnDemand]: 68/78 looper letters, 35 selfloop transitions, 6 changer transitions 0/84 dead transitions. [2024-11-13 15:15:32,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 84 transitions, 337 flow [2024-11-13 15:15:32,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:32,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:32,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2024-11-13 15:15:32,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7307692307692307 [2024-11-13 15:15:32,552 INFO L175 Difference]: Start difference. First operand has 67 places, 73 transitions, 220 flow. Second operand 3 states and 171 transitions. [2024-11-13 15:15:32,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 84 transitions, 337 flow [2024-11-13 15:15:32,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 84 transitions, 331 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:15:32,562 INFO L231 Difference]: Finished difference. Result has 69 places, 77 transitions, 272 flow [2024-11-13 15:15:32,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=69, PETRI_TRANSITIONS=77} [2024-11-13 15:15:32,566 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-11-13 15:15:32,566 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 77 transitions, 272 flow [2024-11-13 15:15:32,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 15:15:32,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:32,566 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 15:15:32,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:15:32,566 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:32,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1629098148, now seen corresponding path program 4 times [2024-11-13 15:15:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726103071] [2024-11-13 15:15:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:32,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:32,665 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 15:15:32,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:32,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726103071] [2024-11-13 15:15:32,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726103071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:32,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:32,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:32,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74072145] [2024-11-13 15:15:32,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:32,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:32,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:32,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:32,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 78 [2024-11-13 15:15:32,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 77 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 15:15:32,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:32,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 78 [2024-11-13 15:15:32,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:32,911 INFO L124 PetriNetUnfolderBase]: 426/1283 cut-off events. [2024-11-13 15:15:32,912 INFO L125 PetriNetUnfolderBase]: For 469/548 co-relation queries the response was YES. [2024-11-13 15:15:32,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2736 conditions, 1283 events. 426/1283 cut-off events. For 469/548 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9767 event pairs, 135 based on Foata normal form. 69/1254 useless extension candidates. Maximal degree in co-relation 2727. Up to 302 conditions per place. [2024-11-13 15:15:32,922 INFO L140 encePairwiseOnDemand]: 74/78 looper letters, 34 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-11-13 15:15:32,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 89 transitions, 383 flow [2024-11-13 15:15:32,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-11-13 15:15:32,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7606837606837606 [2024-11-13 15:15:32,924 INFO L175 Difference]: Start difference. First operand has 69 places, 77 transitions, 272 flow. Second operand 3 states and 178 transitions. [2024-11-13 15:15:32,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 89 transitions, 383 flow [2024-11-13 15:15:32,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 89 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:15:32,932 INFO L231 Difference]: Finished difference. Result has 71 places, 78 transitions, 282 flow [2024-11-13 15:15:32,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=71, PETRI_TRANSITIONS=78} [2024-11-13 15:15:32,933 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2024-11-13 15:15:32,934 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 78 transitions, 282 flow [2024-11-13 15:15:32,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 15:15:32,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:32,935 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 15:15:32,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:15:32,936 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:32,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:32,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1748744484, now seen corresponding path program 1 times [2024-11-13 15:15:32,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:32,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084653246] [2024-11-13 15:15:32,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:32,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:33,030 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 15:15:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:33,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084653246] [2024-11-13 15:15:33,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084653246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:33,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:33,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:33,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124786649] [2024-11-13 15:15:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:33,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:33,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:33,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:33,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:33,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 78 [2024-11-13 15:15:33,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 78 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 15:15:33,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:33,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 78 [2024-11-13 15:15:33,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:33,240 INFO L124 PetriNetUnfolderBase]: 377/1151 cut-off events. [2024-11-13 15:15:33,240 INFO L125 PetriNetUnfolderBase]: For 298/360 co-relation queries the response was YES. [2024-11-13 15:15:33,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2429 conditions, 1151 events. 377/1151 cut-off events. For 298/360 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8505 event pairs, 137 based on Foata normal form. 30/1114 useless extension candidates. Maximal degree in co-relation 2419. Up to 414 conditions per place. [2024-11-13 15:15:33,250 INFO L140 encePairwiseOnDemand]: 73/78 looper letters, 22 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2024-11-13 15:15:33,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 83 transitions, 347 flow [2024-11-13 15:15:33,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2024-11-13 15:15:33,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7307692307692307 [2024-11-13 15:15:33,253 INFO L175 Difference]: Start difference. First operand has 71 places, 78 transitions, 282 flow. Second operand 3 states and 171 transitions. [2024-11-13 15:15:33,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 83 transitions, 347 flow [2024-11-13 15:15:33,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 83 transitions, 331 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-13 15:15:33,260 INFO L231 Difference]: Finished difference. Result has 72 places, 79 transitions, 284 flow [2024-11-13 15:15:33,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=72, PETRI_TRANSITIONS=79} [2024-11-13 15:15:33,262 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2024-11-13 15:15:33,264 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 79 transitions, 284 flow [2024-11-13 15:15:33,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 15:15:33,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:33,265 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 15:15:33,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:15:33,266 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:33,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:33,266 INFO L85 PathProgramCache]: Analyzing trace with hash 293582135, now seen corresponding path program 1 times [2024-11-13 15:15:33,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:33,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632144457] [2024-11-13 15:15:33,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:33,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:33,346 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 15:15:33,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:33,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632144457] [2024-11-13 15:15:33,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632144457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:33,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:33,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:33,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280713133] [2024-11-13 15:15:33,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:33,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:33,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:33,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:33,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:33,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 78 [2024-11-13 15:15:33,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 79 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 15:15:33,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:33,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 78 [2024-11-13 15:15:33,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:33,546 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([349] L783-->thr2EXIT: Formula: (and (= |v_thr2Thread1of1ForFork1_#res#1.offset_1| 0) (= |v_thr2Thread1of1ForFork1_#res#1.base_1| 0)) InVars {} OutVars{thr2Thread1of1ForFork1_#res#1.offset=|v_thr2Thread1of1ForFork1_#res#1.offset_1|, thr2Thread1of1ForFork1_#res#1.base=|v_thr2Thread1of1ForFork1_#res#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_#res#1.offset, thr2Thread1of1ForFork1_#res#1.base][48], [Black: 94#true, 99#true, Black: 101#(= ~b2~0 1), 77#(= ~X~0 1), Black: 72#(= ~X~0 0), 52#thr2EXITtrue, 4#L790true, Black: 81#(= ~y~0 1), Black: 86#(= 2 ~x~0), 103#true, 22#L740-1true, Black: 91#(= 2 ~y~0), 68#true]) [2024-11-13 15:15:33,546 INFO L294 olderBase$Statistics]: this new event has 35 ancestors and is cut-off event [2024-11-13 15:15:33,547 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2024-11-13 15:15:33,547 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2024-11-13 15:15:33,547 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2024-11-13 15:15:33,558 INFO L124 PetriNetUnfolderBase]: 326/1021 cut-off events. [2024-11-13 15:15:33,559 INFO L125 PetriNetUnfolderBase]: For 175/209 co-relation queries the response was YES. [2024-11-13 15:15:33,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2200 conditions, 1021 events. 326/1021 cut-off events. For 175/209 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6909 event pairs, 128 based on Foata normal form. 22/988 useless extension candidates. Maximal degree in co-relation 2189. Up to 353 conditions per place. [2024-11-13 15:15:33,567 INFO L140 encePairwiseOnDemand]: 73/78 looper letters, 21 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-13 15:15:33,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 77 transitions, 321 flow [2024-11-13 15:15:33,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:33,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:33,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2024-11-13 15:15:33,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7264957264957265 [2024-11-13 15:15:33,569 INFO L175 Difference]: Start difference. First operand has 72 places, 79 transitions, 284 flow. Second operand 3 states and 170 transitions. [2024-11-13 15:15:33,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 77 transitions, 321 flow [2024-11-13 15:15:33,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 77 transitions, 307 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-13 15:15:33,574 INFO L231 Difference]: Finished difference. Result has 67 places, 72 transitions, 260 flow [2024-11-13 15:15:33,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=67, PETRI_TRANSITIONS=72} [2024-11-13 15:15:33,575 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2024-11-13 15:15:33,576 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 72 transitions, 260 flow [2024-11-13 15:15:33,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 15:15:33,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:33,576 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, 1, 1, 1, 1] [2024-11-13 15:15:33,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:15:33,577 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:15:33,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:33,577 INFO L85 PathProgramCache]: Analyzing trace with hash -21964163, now seen corresponding path program 1 times [2024-11-13 15:15:33,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:33,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871988398] [2024-11-13 15:15:33,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:33,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:33,636 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 15:15:33,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:33,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871988398] [2024-11-13 15:15:33,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871988398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:33,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:33,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 15:15:33,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315534040] [2024-11-13 15:15:33,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:33,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:33,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:33,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:33,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:33,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 78 [2024-11-13 15:15:33,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 72 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 15:15:33,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:33,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 78 [2024-11-13 15:15:33,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:33,748 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([349] L783-->thr2EXIT: Formula: (and (= |v_thr2Thread1of1ForFork1_#res#1.offset_1| 0) (= |v_thr2Thread1of1ForFork1_#res#1.base_1| 0)) InVars {} OutVars{thr2Thread1of1ForFork1_#res#1.offset=|v_thr2Thread1of1ForFork1_#res#1.offset_1|, thr2Thread1of1ForFork1_#res#1.base=|v_thr2Thread1of1ForFork1_#res#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_#res#1.offset, thr2Thread1of1ForFork1_#res#1.base][44], [Black: 94#true, Black: 101#(= ~b2~0 1), 77#(= ~X~0 1), Black: 72#(= ~X~0 0), Black: 105#(= ~b1~0 1), 109#(= |ULTIMATE.start_main_old_#valid#1| |#valid|), 52#thr2EXITtrue, 17#L748-3true, 4#L790true, Black: 81#(= ~y~0 1), Black: 86#(= 2 ~x~0), 103#true, Black: 91#(= 2 ~y~0), 68#true]) [2024-11-13 15:15:33,748 INFO L294 olderBase$Statistics]: this new event has 36 ancestors and is cut-off event [2024-11-13 15:15:33,749 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2024-11-13 15:15:33,749 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2024-11-13 15:15:33,749 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2024-11-13 15:15:33,757 INFO L124 PetriNetUnfolderBase]: 221/753 cut-off events. [2024-11-13 15:15:33,758 INFO L125 PetriNetUnfolderBase]: For 140/163 co-relation queries the response was YES. [2024-11-13 15:15:33,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 753 events. 221/753 cut-off events. For 140/163 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4878 event pairs, 95 based on Foata normal form. 5/675 useless extension candidates. Maximal degree in co-relation 1574. Up to 272 conditions per place. [2024-11-13 15:15:33,762 INFO L140 encePairwiseOnDemand]: 76/78 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2024-11-13 15:15:33,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 71 transitions, 288 flow [2024-11-13 15:15:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:33,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-11-13 15:15:33,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-11-13 15:15:33,764 INFO L175 Difference]: Start difference. First operand has 67 places, 72 transitions, 260 flow. Second operand 3 states and 169 transitions. [2024-11-13 15:15:33,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 71 transitions, 288 flow [2024-11-13 15:15:33,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 71 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:15:33,767 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-13 15:15:33,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-13 15:15:33,768 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-11-13 15:15:33,769 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-13 15:15:33,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 15:15:33,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-13 15:15:33,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-13 15:15:33,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-13 15:15:33,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-13 15:15:33,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-13 15:15:33,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2024-11-13 15:15:33,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-13 15:15:33,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:15:33,774 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:33,780 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 15:15:33,781 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:15:33,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:15:33 BasicIcfg [2024-11-13 15:15:33,788 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:15:33,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:15:33,789 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:15:33,789 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:15:33,790 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:29" (3/4) ... [2024-11-13 15:15:33,792 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:15:33,795 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-13 15:15:33,795 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-13 15:15:33,799 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-13 15:15:33,800 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 15:15:33,800 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 15:15:33,800 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 15:15:33,880 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:15:33,881 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:15:33,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:15:33,882 INFO L158 Benchmark]: Toolchain (without parser) took 5899.21ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 90.9MB in the beginning and 56.7MB in the end (delta: 34.2MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2024-11-13 15:15:33,882 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 74.2MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:15:33,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.12ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 71.1MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:15:33,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.59ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:15:33,883 INFO L158 Benchmark]: Boogie Preprocessor took 54.65ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 67.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:15:33,884 INFO L158 Benchmark]: RCFGBuilder took 667.61ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 50.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:15:33,884 INFO L158 Benchmark]: TraceAbstraction took 4328.63ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 49.6MB in the beginning and 61.7MB in the end (delta: -12.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-13 15:15:33,885 INFO L158 Benchmark]: Witness Printer took 92.42ms. Allocated memory is still 167.8MB. Free memory was 61.7MB in the beginning and 56.7MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:15:33,887 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 74.2MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.12ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 71.1MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.59ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.65ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 67.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 667.61ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 50.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4328.63ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 49.6MB in the beginning and 61.7MB in the end (delta: -12.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 92.42ms. Allocated memory is still 167.8MB. Free memory was 61.7MB in the beginning and 56.7MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 786]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 109 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 36 mSDtfsCounter, 412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284occurred in iteration=8, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 15:15:33,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5564350f-1aaa-4fe2-9492-67c8caf3a5b1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE