./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/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_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:50:41,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:50:41,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:50:41,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:50:41,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:50:41,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:50:41,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:50:41,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:50:41,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:50:41,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:50:41,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:50:41,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:50:41,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:50:41,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:50:41,500 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:50:41,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:50:41,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:50:41,501 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:50:41,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:50:41,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:50:41,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:50:41,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:50:41,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:50:41,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:50:41,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:50:41,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:50:41,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:50:41,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:50:41,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:50:41,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:50:41,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:50:41,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:50:41,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:50:41,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:50:41,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:50:41,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:50:41,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:50:41,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:50:41,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:50:41,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:50:41,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:50:41,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:50:41,504 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_369d3a46-e455-47d5-af70-61c21187bff1/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 ! call(reach_error())) ) 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 -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2024-11-13 15:50:41,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:50:41,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:50:42,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:50:42,004 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:50:42,004 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:50:42,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/safe035_power.i Unable to find full path for "g++" [2024-11-13 15:50:44,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:50:44,954 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:50:44,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-13 15:50:44,991 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/data/28ed32c75/33d296163f3c4ce592315ec370185eb6/FLAGc3a0b9812 [2024-11-13 15:50:45,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/data/28ed32c75/33d296163f3c4ce592315ec370185eb6 [2024-11-13 15:50:45,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:50:45,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:50:45,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:50:45,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:50:45,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:50:45,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:45,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a0fc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45, skipping insertion in model container [2024-11-13 15:50:45,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:45,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:50:45,382 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/sv-benchmarks/c/pthread-wmm/safe035_power.i[947,960] [2024-11-13 15:50:45,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:50:45,801 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:50:45,816 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/sv-benchmarks/c/pthread-wmm/safe035_power.i[947,960] [2024-11-13 15:50:45,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:50:45,991 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:50:45,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45 WrapperNode [2024-11-13 15:50:45,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:50:45,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:50:45,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:50:45,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:50:46,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,064 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2024-11-13 15:50:46,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:50:46,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:50:46,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:50:46,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:50:46,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,089 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,133 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 15:50:46,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:50:46,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:50:46,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:50:46,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:50:46,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (1/1) ... [2024-11-13 15:50:46,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:50:46,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:50:46,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:50:46,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:50:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 15:50:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:50:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 15:50:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 15:50:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 15:50:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 15:50:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 15:50:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 15:50:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:50:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 15:50:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:50:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:50:46,285 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 15:50:46,538 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:50:46,542 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:50:47,326 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:50:47,326 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:50:47,825 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:50:47,829 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:50:47,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:50:47 BoogieIcfgContainer [2024-11-13 15:50:47,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:50:47,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:50:47,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:50:47,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:50:47,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:50:45" (1/3) ... [2024-11-13 15:50:47,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df7f8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:50:47, skipping insertion in model container [2024-11-13 15:50:47,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:45" (2/3) ... [2024-11-13 15:50:47,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df7f8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:50:47, skipping insertion in model container [2024-11-13 15:50:47,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:50:47" (3/3) ... [2024-11-13 15:50:47,845 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2024-11-13 15:50:47,869 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:50:47,871 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe035_power.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 15:50:47,872 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:50:47,981 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:50:48,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 96 flow [2024-11-13 15:50:48,105 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2024-11-13 15:50:48,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:50:48,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 1/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-13 15:50:48,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 96 flow [2024-11-13 15:50:48,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 39 transitions, 87 flow [2024-11-13 15:50:48,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:50:48,155 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=LoopHeads, 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;@1a8a5afe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:50:48,155 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-13 15:50:48,171 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:50:48,171 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-11-13 15:50:48,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:50:48,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:48,172 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:50:48,173 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:50:48,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1597382317, now seen corresponding path program 1 times [2024-11-13 15:50:48,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:48,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239926858] [2024-11-13 15:50:48,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:48,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:49,148 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 15:50:49,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:49,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239926858] [2024-11-13 15:50:49,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239926858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:49,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:49,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 15:50:49,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232296921] [2024-11-13 15:50:49,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:49,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:50:49,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:49,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:50:49,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:50:49,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-13 15:50:49,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:50:49,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:49,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-13 15:50:49,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:50,689 INFO L124 PetriNetUnfolderBase]: 1951/3088 cut-off events. [2024-11-13 15:50:50,691 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-13 15:50:50,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5983 conditions, 3088 events. 1951/3088 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 18876 event pairs, 266 based on Foata normal form. 120/3172 useless extension candidates. Maximal degree in co-relation 5972. Up to 2386 conditions per place. [2024-11-13 15:50:50,730 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 33 selfloop transitions, 2 changer transitions 2/50 dead transitions. [2024-11-13 15:50:50,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 183 flow [2024-11-13 15:50:50,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:50:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:50:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-11-13 15:50:50,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6984126984126984 [2024-11-13 15:50:50,755 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 88 transitions. [2024-11-13 15:50:50,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 183 flow [2024-11-13 15:50:50,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:50:50,769 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-11-13 15:50:50,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-13 15:50:50,778 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-11-13 15:50:50,778 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-11-13 15:50:50,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:50:50,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:50,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:50:50,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:50:50,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:50:50,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:50,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1890798407, now seen corresponding path program 1 times [2024-11-13 15:50:50,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:50,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212142333] [2024-11-13 15:50:50,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:50,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:51,508 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 15:50:51,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:51,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212142333] [2024-11-13 15:50:51,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212142333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:51,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:51,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:50:51,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839153793] [2024-11-13 15:50:51,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:51,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:50:51,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:50:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:50:51,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-13 15:50:51,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 15:50:51,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:51,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-13 15:50:51,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:53,203 INFO L124 PetriNetUnfolderBase]: 2423/3832 cut-off events. [2024-11-13 15:50:53,204 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-13 15:50:53,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7578 conditions, 3832 events. 2423/3832 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 24159 event pairs, 661 based on Foata normal form. 0/3748 useless extension candidates. Maximal degree in co-relation 7568. Up to 1372 conditions per place. [2024-11-13 15:50:53,227 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 32 selfloop transitions, 2 changer transitions 53/98 dead transitions. [2024-11-13 15:50:53,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 98 transitions, 384 flow [2024-11-13 15:50:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:50:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 15:50:53,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions. [2024-11-13 15:50:53,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2024-11-13 15:50:53,230 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 8 states and 201 transitions. [2024-11-13 15:50:53,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 98 transitions, 384 flow [2024-11-13 15:50:53,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 98 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:50:53,235 INFO L231 Difference]: Finished difference. Result has 55 places, 35 transitions, 92 flow [2024-11-13 15:50:53,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=92, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2024-11-13 15:50:53,236 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-11-13 15:50:53,236 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 92 flow [2024-11-13 15:50:53,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 15:50:53,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:53,237 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:50:53,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:50:53,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:50:53,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash 286561760, now seen corresponding path program 1 times [2024-11-13 15:50:53,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:53,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722435240] [2024-11-13 15:50:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:53,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:55,765 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 15:50:55,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:55,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722435240] [2024-11-13 15:50:55,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722435240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:55,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:55,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:50:55,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426303064] [2024-11-13 15:50:55,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:55,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:50:55,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:55,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:50:55,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:50:55,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-13 15:50:55,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 92 flow. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:50:55,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:55,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-13 15:50:55,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:58,724 INFO L124 PetriNetUnfolderBase]: 3661/5794 cut-off events. [2024-11-13 15:50:58,725 INFO L125 PetriNetUnfolderBase]: For 730/730 co-relation queries the response was YES. [2024-11-13 15:50:58,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12528 conditions, 5794 events. 3661/5794 cut-off events. For 730/730 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 37061 event pairs, 543 based on Foata normal form. 135/5911 useless extension candidates. Maximal degree in co-relation 12513. Up to 2389 conditions per place. [2024-11-13 15:50:58,823 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 53 selfloop transitions, 15 changer transitions 47/125 dead transitions. [2024-11-13 15:50:58,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 125 transitions, 518 flow [2024-11-13 15:50:58,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:50:58,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 15:50:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 247 transitions. [2024-11-13 15:50:58,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5880952380952381 [2024-11-13 15:50:58,826 INFO L175 Difference]: Start difference. First operand has 55 places, 35 transitions, 92 flow. Second operand 10 states and 247 transitions. [2024-11-13 15:50:58,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 125 transitions, 518 flow [2024-11-13 15:50:58,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 125 transitions, 494 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-13 15:50:58,942 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 201 flow [2024-11-13 15:50:58,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=201, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-13 15:50:58,944 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-13 15:50:58,944 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 201 flow [2024-11-13 15:50:58,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:50:58,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:58,944 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:50:58,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:50:58,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:50:58,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:58,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1248427591, now seen corresponding path program 1 times [2024-11-13 15:50:58,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:58,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327428016] [2024-11-13 15:50:58,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:58,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:01,126 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 15:51:01,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:01,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327428016] [2024-11-13 15:51:01,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327428016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:01,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:01,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:51:01,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638824053] [2024-11-13 15:51:01,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:01,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:51:01,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:01,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:51:01,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:51:01,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-13 15:51:01,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 201 flow. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:01,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:01,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-13 15:51:01,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:04,337 INFO L124 PetriNetUnfolderBase]: 4136/6596 cut-off events. [2024-11-13 15:51:04,337 INFO L125 PetriNetUnfolderBase]: For 6750/6770 co-relation queries the response was YES. [2024-11-13 15:51:04,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19896 conditions, 6596 events. 4136/6596 cut-off events. For 6750/6770 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 43690 event pairs, 442 based on Foata normal form. 65/6643 useless extension candidates. Maximal degree in co-relation 19878. Up to 2790 conditions per place. [2024-11-13 15:51:04,407 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 73 selfloop transitions, 20 changer transitions 38/141 dead transitions. [2024-11-13 15:51:04,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 141 transitions, 881 flow [2024-11-13 15:51:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:51:04,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 15:51:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 275 transitions. [2024-11-13 15:51:04,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5456349206349206 [2024-11-13 15:51:04,414 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 201 flow. Second operand 12 states and 275 transitions. [2024-11-13 15:51:04,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 141 transitions, 881 flow [2024-11-13 15:51:04,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 141 transitions, 858 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-13 15:51:04,447 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 383 flow [2024-11-13 15:51:04,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=383, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-13 15:51:04,449 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-13 15:51:04,449 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 383 flow [2024-11-13 15:51:04,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:04,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:04,450 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:51:04,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:51:04,451 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:51:04,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:04,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1719423301, now seen corresponding path program 2 times [2024-11-13 15:51:04,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:04,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851751709] [2024-11-13 15:51:04,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:04,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:04,892 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 15:51:04,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851751709] [2024-11-13 15:51:04,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851751709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:04,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:04,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:51:04,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310959974] [2024-11-13 15:51:04,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:04,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:51:04,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:04,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:51:04,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:51:04,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-13 15:51:04,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 383 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 15:51:04,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:04,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-13 15:51:04,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:06,905 INFO L124 PetriNetUnfolderBase]: 5898/9037 cut-off events. [2024-11-13 15:51:06,906 INFO L125 PetriNetUnfolderBase]: For 35249/35379 co-relation queries the response was YES. [2024-11-13 15:51:06,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35217 conditions, 9037 events. 5898/9037 cut-off events. For 35249/35379 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 55967 event pairs, 832 based on Foata normal form. 565/9555 useless extension candidates. Maximal degree in co-relation 35193. Up to 4184 conditions per place. [2024-11-13 15:51:07,095 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 99 selfloop transitions, 5 changer transitions 6/123 dead transitions. [2024-11-13 15:51:07,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 123 transitions, 1017 flow [2024-11-13 15:51:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:51:07,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:51:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-13 15:51:07,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-11-13 15:51:07,098 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 383 flow. Second operand 4 states and 110 transitions. [2024-11-13 15:51:07,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 123 transitions, 1017 flow [2024-11-13 15:51:07,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 123 transitions, 981 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-13 15:51:07,163 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 401 flow [2024-11-13 15:51:07,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=401, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-13 15:51:07,166 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-13 15:51:07,168 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 401 flow [2024-11-13 15:51:07,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 15:51:07,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:07,169 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:51:07,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:51:07,170 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:51:07,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:07,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1533968904, now seen corresponding path program 1 times [2024-11-13 15:51:07,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:07,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571095012] [2024-11-13 15:51:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:07,678 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 15:51:07,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:07,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571095012] [2024-11-13 15:51:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571095012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:07,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:07,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:51:07,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865023834] [2024-11-13 15:51:07,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:07,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:51:07,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:07,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:51:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:51:07,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-13 15:51:07,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 401 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 15:51:07,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:07,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-13 15:51:07,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:09,311 INFO L124 PetriNetUnfolderBase]: 4475/6982 cut-off events. [2024-11-13 15:51:09,312 INFO L125 PetriNetUnfolderBase]: For 26026/26142 co-relation queries the response was YES. [2024-11-13 15:51:09,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28149 conditions, 6982 events. 4475/6982 cut-off events. For 26026/26142 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 42094 event pairs, 736 based on Foata normal form. 404/7339 useless extension candidates. Maximal degree in co-relation 28125. Up to 2574 conditions per place. [2024-11-13 15:51:09,357 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 99 selfloop transitions, 8 changer transitions 12/132 dead transitions. [2024-11-13 15:51:09,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 132 transitions, 1092 flow [2024-11-13 15:51:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:51:09,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 15:51:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-11-13 15:51:09,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2024-11-13 15:51:09,361 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 401 flow. Second operand 5 states and 141 transitions. [2024-11-13 15:51:09,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 132 transitions, 1092 flow [2024-11-13 15:51:09,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 132 transitions, 1089 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:51:09,395 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 439 flow [2024-11-13 15:51:09,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=439, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-11-13 15:51:09,396 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-13 15:51:09,396 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 439 flow [2024-11-13 15:51:09,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 15:51:09,396 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:09,396 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] [2024-11-13 15:51:09,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:51:09,397 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:51:09,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:09,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1491675154, now seen corresponding path program 1 times [2024-11-13 15:51:09,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:09,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184633133] [2024-11-13 15:51:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:09,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:11,636 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 15:51:11,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:11,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184633133] [2024-11-13 15:51:11,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184633133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:11,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:11,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:51:11,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460250284] [2024-11-13 15:51:11,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:11,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:51:11,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:11,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:51:11,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:51:11,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-13 15:51:11,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 439 flow. Second operand has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:11,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:11,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-13 15:51:11,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:13,992 INFO L124 PetriNetUnfolderBase]: 3424/6083 cut-off events. [2024-11-13 15:51:13,992 INFO L125 PetriNetUnfolderBase]: For 20206/21314 co-relation queries the response was YES. [2024-11-13 15:51:14,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24252 conditions, 6083 events. 3424/6083 cut-off events. For 20206/21314 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 43917 event pairs, 583 based on Foata normal form. 185/5890 useless extension candidates. Maximal degree in co-relation 24225. Up to 1940 conditions per place. [2024-11-13 15:51:14,047 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 52 selfloop transitions, 13 changer transitions 70/153 dead transitions. [2024-11-13 15:51:14,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 153 transitions, 1353 flow [2024-11-13 15:51:14,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:51:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:51:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 285 transitions. [2024-11-13 15:51:14,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.521978021978022 [2024-11-13 15:51:14,051 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 439 flow. Second operand 13 states and 285 transitions. [2024-11-13 15:51:14,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 153 transitions, 1353 flow [2024-11-13 15:51:14,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 153 transitions, 1329 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-13 15:51:14,094 INFO L231 Difference]: Finished difference. Result has 88 places, 62 transitions, 475 flow [2024-11-13 15:51:14,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=475, PETRI_PLACES=88, PETRI_TRANSITIONS=62} [2024-11-13 15:51:14,096 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 40 predicate places. [2024-11-13 15:51:14,096 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 62 transitions, 475 flow [2024-11-13 15:51:14,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:14,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:14,097 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] [2024-11-13 15:51:14,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:51:14,098 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:51:14,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:14,098 INFO L85 PathProgramCache]: Analyzing trace with hash 70659006, now seen corresponding path program 2 times [2024-11-13 15:51:14,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:14,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255470069] [2024-11-13 15:51:14,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:14,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:14,593 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 15:51:14,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:14,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255470069] [2024-11-13 15:51:14,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255470069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:14,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:14,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:51:14,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687249153] [2024-11-13 15:51:14,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:14,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:51:14,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:14,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:51:14,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:51:14,609 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-13 15:51:14,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 62 transitions, 475 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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 15:51:14,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:14,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-13 15:51:14,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:15,408 INFO L124 PetriNetUnfolderBase]: 1487/2411 cut-off events. [2024-11-13 15:51:15,408 INFO L125 PetriNetUnfolderBase]: For 16111/16205 co-relation queries the response was YES. [2024-11-13 15:51:15,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11330 conditions, 2411 events. 1487/2411 cut-off events. For 16111/16205 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 12529 event pairs, 252 based on Foata normal form. 107/2501 useless extension candidates. Maximal degree in co-relation 11295. Up to 967 conditions per place. [2024-11-13 15:51:15,432 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 77 selfloop transitions, 11 changer transitions 0/99 dead transitions. [2024-11-13 15:51:15,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 99 transitions, 941 flow [2024-11-13 15:51:15,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:51:15,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:51:15,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-11-13 15:51:15,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5515873015873016 [2024-11-13 15:51:15,436 INFO L175 Difference]: Start difference. First operand has 88 places, 62 transitions, 475 flow. Second operand 6 states and 139 transitions. [2024-11-13 15:51:15,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 99 transitions, 941 flow [2024-11-13 15:51:15,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 99 transitions, 756 flow, removed 55 selfloop flow, removed 18 redundant places. [2024-11-13 15:51:15,472 INFO L231 Difference]: Finished difference. Result has 70 places, 62 transitions, 387 flow [2024-11-13 15:51:15,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=70, PETRI_TRANSITIONS=62} [2024-11-13 15:51:15,476 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-13 15:51:15,476 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 62 transitions, 387 flow [2024-11-13 15:51:15,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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 15:51:15,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:15,477 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] [2024-11-13 15:51:15,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:51:15,477 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:51:15,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:15,478 INFO L85 PathProgramCache]: Analyzing trace with hash 619321625, now seen corresponding path program 1 times [2024-11-13 15:51:15,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:15,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804286834] [2024-11-13 15:51:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:15,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:16,029 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 15:51:16,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:16,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804286834] [2024-11-13 15:51:16,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804286834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:16,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:16,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:51:16,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369854017] [2024-11-13 15:51:16,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:16,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:51:16,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:16,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:51:16,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:51:16,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-13 15:51:16,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 62 transitions, 387 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:16,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:16,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-13 15:51:16,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:16,751 INFO L124 PetriNetUnfolderBase]: 1254/2284 cut-off events. [2024-11-13 15:51:16,752 INFO L125 PetriNetUnfolderBase]: For 7507/8077 co-relation queries the response was YES. [2024-11-13 15:51:16,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8435 conditions, 2284 events. 1254/2284 cut-off events. For 7507/8077 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 14344 event pairs, 173 based on Foata normal form. 90/2157 useless extension candidates. Maximal degree in co-relation 8411. Up to 1187 conditions per place. [2024-11-13 15:51:16,765 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 33 selfloop transitions, 1 changer transitions 43/96 dead transitions. [2024-11-13 15:51:16,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 710 flow [2024-11-13 15:51:16,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:51:16,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:51:16,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-13 15:51:16,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2024-11-13 15:51:16,767 INFO L175 Difference]: Start difference. First operand has 70 places, 62 transitions, 387 flow. Second operand 6 states and 130 transitions. [2024-11-13 15:51:16,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 710 flow [2024-11-13 15:51:16,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 96 transitions, 650 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-11-13 15:51:16,786 INFO L231 Difference]: Finished difference. Result has 74 places, 48 transitions, 265 flow [2024-11-13 15:51:16,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=74, PETRI_TRANSITIONS=48} [2024-11-13 15:51:16,787 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-13 15:51:16,787 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 265 flow [2024-11-13 15:51:16,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:16,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:16,788 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] [2024-11-13 15:51:16,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:51:16,788 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:51:16,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1922864293, now seen corresponding path program 2 times [2024-11-13 15:51:16,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:16,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258599798] [2024-11-13 15:51:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:16,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:20,263 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 15:51:20,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:20,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258599798] [2024-11-13 15:51:20,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258599798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:20,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:20,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:51:20,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959355180] [2024-11-13 15:51:20,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:20,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:51:20,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:20,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:51:20,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:51:20,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-13 15:51:20,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 48 transitions, 265 flow. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:20,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:20,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-13 15:51:20,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:21,484 INFO L124 PetriNetUnfolderBase]: 1011/1925 cut-off events. [2024-11-13 15:51:21,484 INFO L125 PetriNetUnfolderBase]: For 3315/3570 co-relation queries the response was YES. [2024-11-13 15:51:21,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6348 conditions, 1925 events. 1011/1925 cut-off events. For 3315/3570 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 12365 event pairs, 289 based on Foata normal form. 52/1780 useless extension candidates. Maximal degree in co-relation 6323. Up to 937 conditions per place. [2024-11-13 15:51:21,493 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 30 selfloop transitions, 5 changer transitions 29/83 dead transitions. [2024-11-13 15:51:21,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 83 transitions, 570 flow [2024-11-13 15:51:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:51:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 15:51:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-11-13 15:51:21,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-11-13 15:51:21,495 INFO L175 Difference]: Start difference. First operand has 74 places, 48 transitions, 265 flow. Second operand 8 states and 161 transitions. [2024-11-13 15:51:21,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 83 transitions, 570 flow [2024-11-13 15:51:21,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 83 transitions, 543 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-13 15:51:21,507 INFO L231 Difference]: Finished difference. Result has 74 places, 50 transitions, 301 flow [2024-11-13 15:51:21,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=301, PETRI_PLACES=74, PETRI_TRANSITIONS=50} [2024-11-13 15:51:21,509 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-13 15:51:21,509 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 50 transitions, 301 flow [2024-11-13 15:51:21,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:21,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:21,510 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] [2024-11-13 15:51:21,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:51:21,510 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-13 15:51:21,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:21,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1686839965, now seen corresponding path program 3 times [2024-11-13 15:51:21,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:21,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884559659] [2024-11-13 15:51:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:21,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:25,851 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 15:51:25,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:25,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884559659] [2024-11-13 15:51:25,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884559659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:25,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:25,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:51:25,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47486121] [2024-11-13 15:51:25,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:25,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:51:25,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:25,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:51:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:51:25,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-13 15:51:25,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 50 transitions, 301 flow. Second operand has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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 15:51:25,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:25,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-13 15:51:25,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:26,671 INFO L124 PetriNetUnfolderBase]: 457/981 cut-off events. [2024-11-13 15:51:26,672 INFO L125 PetriNetUnfolderBase]: For 2309/2436 co-relation queries the response was YES. [2024-11-13 15:51:26,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 981 events. 457/981 cut-off events. For 2309/2436 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5820 event pairs, 142 based on Foata normal form. 27/934 useless extension candidates. Maximal degree in co-relation 3425. Up to 366 conditions per place. [2024-11-13 15:51:26,677 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-11-13 15:51:26,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 67 transitions, 468 flow [2024-11-13 15:51:26,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:51:26,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 15:51:26,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 163 transitions. [2024-11-13 15:51:26,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4312169312169312 [2024-11-13 15:51:26,679 INFO L175 Difference]: Start difference. First operand has 74 places, 50 transitions, 301 flow. Second operand 9 states and 163 transitions. [2024-11-13 15:51:26,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 67 transitions, 468 flow [2024-11-13 15:51:26,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 455 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-13 15:51:26,687 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2024-11-13 15:51:26,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2024-11-13 15:51:26,688 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2024-11-13 15:51:26,688 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2024-11-13 15:51:26,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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 15:51:26,692 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-13 15:51:26,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-13 15:51:26,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-13 15:51:26,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-13 15:51:26,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-13 15:51:26,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-13 15:51:26,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:51:26,694 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1] [2024-11-13 15:51:26,701 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 15:51:26,701 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:51:26,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:51:26 BasicIcfg [2024-11-13 15:51:26,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:51:26,714 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:51:26,714 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:51:26,714 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:51:26,715 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:50:47" (3/4) ... [2024-11-13 15:51:26,721 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:51:26,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-13 15:51:26,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-13 15:51:26,726 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-13 15:51:26,732 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 88 nodes and edges [2024-11-13 15:51:26,734 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-13 15:51:26,735 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 15:51:26,735 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 15:51:26,840 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:51:26,841 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:51:26,841 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:51:26,842 INFO L158 Benchmark]: Toolchain (without parser) took 41815.99ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 90.4MB in the beginning and 623.4MB in the end (delta: -533.0MB). Peak memory consumption was 520.9MB. Max. memory is 16.1GB. [2024-11-13 15:51:26,843 INFO L158 Benchmark]: CDTParser took 2.11ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:51:26,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 963.78ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 62.2MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:51:26,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.69ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 59.0MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:51:26,844 INFO L158 Benchmark]: Boogie Preprocessor took 120.90ms. Allocated memory is still 117.4MB. Free memory was 59.0MB in the beginning and 53.7MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:51:26,844 INFO L158 Benchmark]: RCFGBuilder took 1642.15ms. Allocated memory is still 117.4MB. Free memory was 53.7MB in the beginning and 80.2MB in the end (delta: -26.4MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2024-11-13 15:51:26,845 INFO L158 Benchmark]: TraceAbstraction took 38880.49ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 79.4MB in the beginning and 627.6MB in the end (delta: -548.2MB). Peak memory consumption was 513.0MB. Max. memory is 16.1GB. [2024-11-13 15:51:26,845 INFO L158 Benchmark]: Witness Printer took 127.23ms. Allocated memory is still 1.2GB. Free memory was 627.6MB in the beginning and 623.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:51:26,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.11ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 963.78ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 62.2MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.69ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 59.0MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 120.90ms. Allocated memory is still 117.4MB. Free memory was 59.0MB in the beginning and 53.7MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1642.15ms. Allocated memory is still 117.4MB. Free memory was 53.7MB in the beginning and 80.2MB in the end (delta: -26.4MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * TraceAbstraction took 38880.49ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 79.4MB in the beginning and 627.6MB in the end (delta: -548.2MB). Peak memory consumption was 513.0MB. Max. memory is 16.1GB. * Witness Printer took 127.23ms. Allocated memory is still 1.2GB. Free memory was 627.6MB in the beginning and 623.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 70 locations, 6 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: 38.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 693 SdHoareTripleChecker+Valid, 6.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 676 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2424 IncrementalHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 157 mSolverCounterUnsat, 35 mSDtfsCounter, 2424 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=475occurred in iteration=7, InterpolantAutomatonStates: 84, 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: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 1801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 15:51:26,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_369d3a46-e455-47d5-af70-61c21187bff1/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