./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1 --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 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:28:00,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:28:00,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:28:00,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:28:00,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:28:00,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:28:00,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:28:00,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:28:00,527 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:28:00,527 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:28:00,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:28:00,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:28:00,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:28:00,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:28:00,528 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:28:00,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:28:00,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:28:00,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:28:00,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:28:00,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:28:00,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:28:00,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:28:00,529 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:28:00,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:28:00,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:28:00,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:28:00,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:28:00,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:28:00,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:28:00,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:28:00,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:28:00,531 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_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1 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 -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-12-02 12:28:00,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:28:00,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:28:00,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:28:00,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:28:00,773 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:28:00,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-12-02 12:28:03,406 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/data/d0b6ca52d/f3cfbceb5f8547a5b733412f784a4bbf/FLAG2515d44fd [2024-12-02 12:28:03,680 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:28:03,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-12-02 12:28:03,702 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/data/d0b6ca52d/f3cfbceb5f8547a5b733412f784a4bbf/FLAG2515d44fd [2024-12-02 12:28:03,968 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/data/d0b6ca52d/f3cfbceb5f8547a5b733412f784a4bbf [2024-12-02 12:28:03,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:28:03,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:28:03,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:28:03,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:28:03,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:28:03,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:28:03" (1/1) ... [2024-12-02 12:28:03,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df2e9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:03, skipping insertion in model container [2024-12-02 12:28:03,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:28:03" (1/1) ... [2024-12-02 12:28:04,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:28:04,323 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_ecad8994-2389-44dd-b88e-48fb406e11d7/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[186210,186223] [2024-12-02 12:28:04,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:28:04,363 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:28:04,406 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_ecad8994-2389-44dd-b88e-48fb406e11d7/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[186210,186223] [2024-12-02 12:28:04,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:28:04,463 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:28:04,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04 WrapperNode [2024-12-02 12:28:04,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:28:04,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:28:04,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:28:04,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:28:04,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,505 INFO L138 Inliner]: procedures = 246, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 127 [2024-12-02 12:28:04,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:28:04,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:28:04,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:28:04,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:28:04,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,519 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,531 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-12-02 12:28:04,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,541 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:28:04,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:28:04,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:28:04,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:28:04,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (1/1) ... [2024-12-02 12:28:04,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:28:04,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:28:04,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:28:04,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-12-02 12:28:04,605 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:28:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:28:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:28:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:28:04,608 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 12:28:04,817 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:28:04,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:28:05,025 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 12:28:05,025 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:28:05,156 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:28:05,156 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 12:28:05,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:28:05 BoogieIcfgContainer [2024-12-02 12:28:05,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:28:05,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:28:05,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:28:05,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:28:05,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:28:03" (1/3) ... [2024-12-02 12:28:05,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698f7414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:28:05, skipping insertion in model container [2024-12-02 12:28:05,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:04" (2/3) ... [2024-12-02 12:28:05,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698f7414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:28:05, skipping insertion in model container [2024-12-02 12:28:05,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:28:05" (3/3) ... [2024-12-02 12:28:05,166 INFO L128 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-12-02 12:28:05,178 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:28:05,179 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-3_1-container_of-global.i that has 2 procedures, 46 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-12-02 12:28:05,179 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 12:28:05,226 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 12:28:05,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2024-12-02 12:28:05,294 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2024-12-02 12:28:05,296 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 12:28:05,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2024-12-02 12:28:05,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2024-12-02 12:28:05,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2024-12-02 12:28:05,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:28:05,320 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;@467e2651, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:28:05,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-12-02 12:28:05,323 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 12:28:05,323 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-12-02 12:28:05,323 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 12:28:05,323 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:05,323 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 12:28:05,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:05,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:05,328 INFO L85 PathProgramCache]: Analyzing trace with hash 13064660, now seen corresponding path program 1 times [2024-12-02 12:28:05,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:05,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659440738] [2024-12-02 12:28:05,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:28:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:05,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:05,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659440738] [2024-12-02 12:28:05,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659440738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:05,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:05,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:28:05,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687099675] [2024-12-02 12:28:05,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:05,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:28:05,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:05,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:28:05,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:28:05,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:05,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-12-02 12:28:05,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:05,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:05,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:06,045 INFO L124 PetriNetUnfolderBase]: 466/823 cut-off events. [2024-12-02 12:28:06,045 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-12-02 12:28:06,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 823 events. 466/823 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3428 event pairs, 345 based on Foata normal form. 3/822 useless extension candidates. Maximal degree in co-relation 1538. Up to 602 conditions per place. [2024-12-02 12:28:06,053 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 39 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2024-12-02 12:28:06,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 218 flow [2024-12-02 12:28:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:28:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 12:28:06,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-12-02 12:28:06,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-12-02 12:28:06,067 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 118 flow. Second operand 3 states and 84 transitions. [2024-12-02 12:28:06,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 218 flow [2024-12-02 12:28:06,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 12:28:06,076 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 112 flow [2024-12-02 12:28:06,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-12-02 12:28:06,081 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2024-12-02 12:28:06,082 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 112 flow [2024-12-02 12:28:06,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-12-02 12:28:06,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:06,082 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 12:28:06,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:28:06,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:06,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:06,083 INFO L85 PathProgramCache]: Analyzing trace with hash -329692165, now seen corresponding path program 1 times [2024-12-02 12:28:06,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:06,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963363776] [2024-12-02 12:28:06,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:28:06,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:06,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:06,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:06,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963363776] [2024-12-02 12:28:06,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963363776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:06,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:06,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:28:06,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310100745] [2024-12-02 12:28:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:06,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:28:06,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:06,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:28:06,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:28:06,293 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:06,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-12-02 12:28:06,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:06,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:06,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:06,547 INFO L124 PetriNetUnfolderBase]: 466/821 cut-off events. [2024-12-02 12:28:06,547 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-12-02 12:28:06,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 821 events. 466/821 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3457 event pairs, 155 based on Foata normal form. 1/821 useless extension candidates. Maximal degree in co-relation 818. Up to 553 conditions per place. [2024-12-02 12:28:06,552 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 47 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2024-12-02 12:28:06,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 265 flow [2024-12-02 12:28:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:28:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 12:28:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-12-02 12:28:06,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36333333333333334 [2024-12-02 12:28:06,555 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 112 flow. Second operand 5 states and 109 transitions. [2024-12-02 12:28:06,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 265 flow [2024-12-02 12:28:06,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 12:28:06,559 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 126 flow [2024-12-02 12:28:06,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-12-02 12:28:06,560 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2024-12-02 12:28:06,560 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 126 flow [2024-12-02 12:28:06,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-12-02 12:28:06,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:06,560 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:06,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:28:06,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:06,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2019603849, now seen corresponding path program 1 times [2024-12-02 12:28:06,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:06,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043210269] [2024-12-02 12:28:06,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:28:06,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:06,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:06,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:06,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043210269] [2024-12-02 12:28:06,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043210269] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:06,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:06,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:28:06,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259311637] [2024-12-02 12:28:06,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:06,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:28:06,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:06,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:28:06,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:28:06,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:06,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-12-02 12:28:06,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:06,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:06,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:07,207 INFO L124 PetriNetUnfolderBase]: 562/1026 cut-off events. [2024-12-02 12:28:07,207 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2024-12-02 12:28:07,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2316 conditions, 1026 events. 562/1026 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4860 event pairs, 252 based on Foata normal form. 64/1089 useless extension candidates. Maximal degree in co-relation 274. Up to 545 conditions per place. [2024-12-02 12:28:07,213 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 49 selfloop transitions, 10 changer transitions 4/67 dead transitions. [2024-12-02 12:28:07,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 306 flow [2024-12-02 12:28:07,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:28:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 12:28:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-12-02 12:28:07,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-12-02 12:28:07,214 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 126 flow. Second operand 4 states and 102 transitions. [2024-12-02 12:28:07,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 306 flow [2024-12-02 12:28:07,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 12:28:07,217 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 150 flow [2024-12-02 12:28:07,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-12-02 12:28:07,218 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-12-02 12:28:07,218 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 150 flow [2024-12-02 12:28:07,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-12-02 12:28:07,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:07,218 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:07,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:28:07,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:07,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:07,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1257070099, now seen corresponding path program 1 times [2024-12-02 12:28:07,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:07,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112153250] [2024-12-02 12:28:07,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:28:07,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:07,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:07,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112153250] [2024-12-02 12:28:07,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112153250] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:07,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:07,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:28:07,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225074753] [2024-12-02 12:28:07,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:07,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:28:07,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:07,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:28:07,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:28:07,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-12-02 12:28:07,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-12-02 12:28:07,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:07,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-12-02 12:28:07,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:07,550 INFO L124 PetriNetUnfolderBase]: 225/408 cut-off events. [2024-12-02 12:28:07,550 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2024-12-02 12:28:07,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 408 events. 225/408 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1450 event pairs, 46 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 927. Up to 217 conditions per place. [2024-12-02 12:28:07,553 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 48 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-12-02 12:28:07,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 278 flow [2024-12-02 12:28:07,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:28:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 12:28:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-12-02 12:28:07,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2024-12-02 12:28:07,554 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 150 flow. Second operand 4 states and 131 transitions. [2024-12-02 12:28:07,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 278 flow [2024-12-02 12:28:07,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 248 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-12-02 12:28:07,557 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 96 flow [2024-12-02 12:28:07,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-12-02 12:28:07,558 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -12 predicate places. [2024-12-02 12:28:07,558 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 96 flow [2024-12-02 12:28:07,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-12-02 12:28:07,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:07,559 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:07,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:28:07,559 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:07,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:07,559 INFO L85 PathProgramCache]: Analyzing trace with hash -660184073, now seen corresponding path program 1 times [2024-12-02 12:28:07,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:07,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461576007] [2024-12-02 12:28:07,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:28:07,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:08,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:08,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461576007] [2024-12-02 12:28:08,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461576007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:08,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:08,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:28:08,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518462542] [2024-12-02 12:28:08,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:08,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:28:08,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:08,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:28:08,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:28:08,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-12-02 12:28:08,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-12-02 12:28:08,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:08,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-12-02 12:28:08,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:08,269 INFO L124 PetriNetUnfolderBase]: 251/458 cut-off events. [2024-12-02 12:28:08,269 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-12-02 12:28:08,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 458 events. 251/458 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1775 event pairs, 35 based on Foata normal form. 8/465 useless extension candidates. Maximal degree in co-relation 219. Up to 271 conditions per place. [2024-12-02 12:28:08,272 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 56 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2024-12-02 12:28:08,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 69 transitions, 332 flow [2024-12-02 12:28:08,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:28:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 12:28:08,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-12-02 12:28:08,273 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-12-02 12:28:08,274 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 96 flow. Second operand 5 states and 164 transitions. [2024-12-02 12:28:08,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 69 transitions, 332 flow [2024-12-02 12:28:08,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 12:28:08,275 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 126 flow [2024-12-02 12:28:08,276 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2024-12-02 12:28:08,276 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -8 predicate places. [2024-12-02 12:28:08,276 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 126 flow [2024-12-02 12:28:08,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-12-02 12:28:08,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:08,277 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:08,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:28:08,277 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:08,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:08,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1426301679, now seen corresponding path program 2 times [2024-12-02 12:28:08,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:08,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661281071] [2024-12-02 12:28:08,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:28:08,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:08,325 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 12:28:08,325 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:08,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:08,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661281071] [2024-12-02 12:28:08,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661281071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:08,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:08,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:28:08,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360417580] [2024-12-02 12:28:08,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:08,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:28:08,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:08,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:28:08,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:28:08,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-12-02 12:28:08,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-12-02 12:28:08,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:08,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-12-02 12:28:08,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:08,915 INFO L124 PetriNetUnfolderBase]: 281/516 cut-off events. [2024-12-02 12:28:08,915 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2024-12-02 12:28:08,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 516 events. 281/516 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2048 event pairs, 37 based on Foata normal form. 8/523 useless extension candidates. Maximal degree in co-relation 354. Up to 307 conditions per place. [2024-12-02 12:28:08,917 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 58 selfloop transitions, 8 changer transitions 0/73 dead transitions. [2024-12-02 12:28:08,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 73 transitions, 378 flow [2024-12-02 12:28:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:28:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 12:28:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-12-02 12:28:08,919 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-12-02 12:28:08,919 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 126 flow. Second operand 5 states and 164 transitions. [2024-12-02 12:28:08,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 73 transitions, 378 flow [2024-12-02 12:28:08,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 73 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 12:28:08,921 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 172 flow [2024-12-02 12:28:08,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-12-02 12:28:08,922 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-12-02 12:28:08,922 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 172 flow [2024-12-02 12:28:08,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-12-02 12:28:08,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:08,923 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:08,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:28:08,923 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:08,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:08,923 INFO L85 PathProgramCache]: Analyzing trace with hash -368074777, now seen corresponding path program 3 times [2024-12-02 12:28:08,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:08,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788516709] [2024-12-02 12:28:08,924 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 12:28:08,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:08,956 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 12:28:08,956 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:09,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:09,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788516709] [2024-12-02 12:28:09,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788516709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:09,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:09,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:28:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863813650] [2024-12-02 12:28:09,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:09,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:28:09,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:09,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:28:09,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:28:09,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:09,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-12-02 12:28:09,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:09,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:09,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:09,690 INFO L124 PetriNetUnfolderBase]: 324/607 cut-off events. [2024-12-02 12:28:09,690 INFO L125 PetriNetUnfolderBase]: For 577/577 co-relation queries the response was YES. [2024-12-02 12:28:09,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 607 events. 324/607 cut-off events. For 577/577 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2452 event pairs, 38 based on Foata normal form. 0/606 useless extension candidates. Maximal degree in co-relation 696. Up to 171 conditions per place. [2024-12-02 12:28:09,693 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 82 selfloop transitions, 23 changer transitions 0/107 dead transitions. [2024-12-02 12:28:09,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 682 flow [2024-12-02 12:28:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:28:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-02 12:28:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2024-12-02 12:28:09,695 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2791666666666667 [2024-12-02 12:28:09,695 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 172 flow. Second operand 12 states and 201 transitions. [2024-12-02 12:28:09,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 682 flow [2024-12-02 12:28:09,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 107 transitions, 674 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 12:28:09,699 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 288 flow [2024-12-02 12:28:09,699 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=288, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-12-02 12:28:09,700 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2024-12-02 12:28:09,700 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 288 flow [2024-12-02 12:28:09,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-12-02 12:28:09,700 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:09,700 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:09,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:28:09,700 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:09,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash -786765451, now seen corresponding path program 4 times [2024-12-02 12:28:09,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:09,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70629575] [2024-12-02 12:28:09,701 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 12:28:09,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:09,735 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 12:28:09,736 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:09,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:09,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70629575] [2024-12-02 12:28:09,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70629575] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:09,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:09,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:28:09,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468098020] [2024-12-02 12:28:09,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:09,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:28:09,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:09,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:28:09,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:28:09,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-12-02 12:28:09,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-12-02 12:28:09,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:09,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-12-02 12:28:09,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:10,180 INFO L124 PetriNetUnfolderBase]: 437/848 cut-off events. [2024-12-02 12:28:10,180 INFO L125 PetriNetUnfolderBase]: For 1437/1437 co-relation queries the response was YES. [2024-12-02 12:28:10,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2923 conditions, 848 events. 437/848 cut-off events. For 1437/1437 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4078 event pairs, 115 based on Foata normal form. 16/864 useless extension candidates. Maximal degree in co-relation 2881. Up to 515 conditions per place. [2024-12-02 12:28:10,185 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 87 selfloop transitions, 10 changer transitions 0/105 dead transitions. [2024-12-02 12:28:10,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 105 transitions, 750 flow [2024-12-02 12:28:10,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:28:10,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 12:28:10,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-12-02 12:28:10,187 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5766666666666667 [2024-12-02 12:28:10,187 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 288 flow. Second operand 5 states and 173 transitions. [2024-12-02 12:28:10,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 105 transitions, 750 flow [2024-12-02 12:28:10,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 105 transitions, 725 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-12-02 12:28:10,194 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 370 flow [2024-12-02 12:28:10,194 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=370, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-12-02 12:28:10,195 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2024-12-02 12:28:10,195 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 370 flow [2024-12-02 12:28:10,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-12-02 12:28:10,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:10,195 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:10,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:28:10,195 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:10,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:10,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1783290199, now seen corresponding path program 5 times [2024-12-02 12:28:10,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:10,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89483965] [2024-12-02 12:28:10,196 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 12:28:10,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:10,226 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 12:28:10,226 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:10,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:10,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:10,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89483965] [2024-12-02 12:28:10,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89483965] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:10,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:10,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:28:10,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11155849] [2024-12-02 12:28:10,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:10,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:28:10,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:10,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:28:10,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:28:10,517 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:10,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-12-02 12:28:10,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:10,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:10,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:10,897 INFO L124 PetriNetUnfolderBase]: 437/844 cut-off events. [2024-12-02 12:28:10,897 INFO L125 PetriNetUnfolderBase]: For 2287/2287 co-relation queries the response was YES. [2024-12-02 12:28:10,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 844 events. 437/844 cut-off events. For 2287/2287 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4009 event pairs, 45 based on Foata normal form. 2/846 useless extension candidates. Maximal degree in co-relation 3139. Up to 246 conditions per place. [2024-12-02 12:28:10,901 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 93 selfloop transitions, 27 changer transitions 0/121 dead transitions. [2024-12-02 12:28:10,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 121 transitions, 1017 flow [2024-12-02 12:28:10,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:28:10,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-02 12:28:10,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2024-12-02 12:28:10,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28055555555555556 [2024-12-02 12:28:10,903 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 370 flow. Second operand 12 states and 202 transitions. [2024-12-02 12:28:10,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 121 transitions, 1017 flow [2024-12-02 12:28:10,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 121 transitions, 995 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-12-02 12:28:10,912 INFO L231 Difference]: Finished difference. Result has 76 places, 65 transitions, 465 flow [2024-12-02 12:28:10,912 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=465, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2024-12-02 12:28:10,912 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 23 predicate places. [2024-12-02 12:28:10,912 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 465 flow [2024-12-02 12:28:10,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-12-02 12:28:10,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:10,913 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:10,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:28:10,913 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:10,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:10,913 INFO L85 PathProgramCache]: Analyzing trace with hash -170966216, now seen corresponding path program 1 times [2024-12-02 12:28:10,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:10,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927342225] [2024-12-02 12:28:10,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:28:10,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:11,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:11,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:11,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927342225] [2024-12-02 12:28:11,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927342225] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:11,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:11,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 12:28:11,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106484929] [2024-12-02 12:28:11,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:11,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:28:11,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:11,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:28:11,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:28:11,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:11,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 465 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:28:11,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:11,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:11,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:12,217 INFO L124 PetriNetUnfolderBase]: 437/842 cut-off events. [2024-12-02 12:28:12,217 INFO L125 PetriNetUnfolderBase]: For 2801/2801 co-relation queries the response was YES. [2024-12-02 12:28:12,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3376 conditions, 842 events. 437/842 cut-off events. For 2801/2801 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3923 event pairs, 82 based on Foata normal form. 1/843 useless extension candidates. Maximal degree in co-relation 2470. Up to 368 conditions per place. [2024-12-02 12:28:12,223 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 72 selfloop transitions, 32 changer transitions 27/132 dead transitions. [2024-12-02 12:28:12,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 132 transitions, 1200 flow [2024-12-02 12:28:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:28:12,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 12:28:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 232 transitions. [2024-12-02 12:28:12,225 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2761904761904762 [2024-12-02 12:28:12,225 INFO L175 Difference]: Start difference. First operand has 76 places, 65 transitions, 465 flow. Second operand 14 states and 232 transitions. [2024-12-02 12:28:12,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 132 transitions, 1200 flow [2024-12-02 12:28:12,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 132 transitions, 1148 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-12-02 12:28:12,236 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 685 flow [2024-12-02 12:28:12,236 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=685, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2024-12-02 12:28:12,236 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 35 predicate places. [2024-12-02 12:28:12,237 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 685 flow [2024-12-02 12:28:12,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:28:12,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:12,237 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:12,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:28:12,237 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:12,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash -343838380, now seen corresponding path program 2 times [2024-12-02 12:28:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:12,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622183] [2024-12-02 12:28:12,238 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:28:12,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:12,273 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 12:28:12,273 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:13,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:13,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622183] [2024-12-02 12:28:13,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:13,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:13,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 12:28:13,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098062416] [2024-12-02 12:28:13,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:13,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:28:13,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:13,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:28:13,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:28:13,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:13,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 78 transitions, 685 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:28:13,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:13,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:13,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:13,593 INFO L124 PetriNetUnfolderBase]: 377/746 cut-off events. [2024-12-02 12:28:13,593 INFO L125 PetriNetUnfolderBase]: For 2817/2817 co-relation queries the response was YES. [2024-12-02 12:28:13,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3126 conditions, 746 events. 377/746 cut-off events. For 2817/2817 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3387 event pairs, 66 based on Foata normal form. 1/747 useless extension candidates. Maximal degree in co-relation 3094. Up to 410 conditions per place. [2024-12-02 12:28:13,598 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 68 selfloop transitions, 28 changer transitions 32/129 dead transitions. [2024-12-02 12:28:13,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 129 transitions, 1242 flow [2024-12-02 12:28:13,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:28:13,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 12:28:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 217 transitions. [2024-12-02 12:28:13,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2782051282051282 [2024-12-02 12:28:13,599 INFO L175 Difference]: Start difference. First operand has 88 places, 78 transitions, 685 flow. Second operand 13 states and 217 transitions. [2024-12-02 12:28:13,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 129 transitions, 1242 flow [2024-12-02 12:28:13,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 1135 flow, removed 15 selfloop flow, removed 10 redundant places. [2024-12-02 12:28:13,607 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 637 flow [2024-12-02 12:28:13,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=637, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-12-02 12:28:13,608 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 38 predicate places. [2024-12-02 12:28:13,608 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 637 flow [2024-12-02 12:28:13,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:28:13,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:13,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:13,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:28:13,608 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:13,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:13,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1234976944, now seen corresponding path program 3 times [2024-12-02 12:28:13,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:13,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574910607] [2024-12-02 12:28:13,609 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 12:28:13,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:13,640 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 12:28:13,640 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:14,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574910607] [2024-12-02 12:28:14,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574910607] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:14,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:14,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 12:28:14,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067530334] [2024-12-02 12:28:14,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:14,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:28:14,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:14,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:28:14,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:28:14,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:14,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 637 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:28:14,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:14,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:14,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:14,763 INFO L124 PetriNetUnfolderBase]: 295/584 cut-off events. [2024-12-02 12:28:14,763 INFO L125 PetriNetUnfolderBase]: For 2029/2029 co-relation queries the response was YES. [2024-12-02 12:28:14,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 584 events. 295/584 cut-off events. For 2029/2029 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2426 event pairs, 58 based on Foata normal form. 1/585 useless extension candidates. Maximal degree in co-relation 2387. Up to 301 conditions per place. [2024-12-02 12:28:14,767 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 58 selfloop transitions, 26 changer transitions 27/112 dead transitions. [2024-12-02 12:28:14,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 112 transitions, 1053 flow [2024-12-02 12:28:14,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:28:14,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 12:28:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 228 transitions. [2024-12-02 12:28:14,769 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2714285714285714 [2024-12-02 12:28:14,769 INFO L175 Difference]: Start difference. First operand has 91 places, 75 transitions, 637 flow. Second operand 14 states and 228 transitions. [2024-12-02 12:28:14,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 112 transitions, 1053 flow [2024-12-02 12:28:14,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 112 transitions, 994 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-12-02 12:28:14,776 INFO L231 Difference]: Finished difference. Result has 93 places, 67 transitions, 579 flow [2024-12-02 12:28:14,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=579, PETRI_PLACES=93, PETRI_TRANSITIONS=67} [2024-12-02 12:28:14,777 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 40 predicate places. [2024-12-02 12:28:14,777 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 67 transitions, 579 flow [2024-12-02 12:28:14,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:28:14,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:14,777 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:14,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:28:14,778 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:14,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash 302187456, now seen corresponding path program 4 times [2024-12-02 12:28:14,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:14,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995082572] [2024-12-02 12:28:14,778 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 12:28:14,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:14,813 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 12:28:14,813 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:15,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:15,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:15,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995082572] [2024-12-02 12:28:15,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995082572] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:28:15,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715056366] [2024-12-02 12:28:15,568 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 12:28:15,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:28:15,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:28:15,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:28:15,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:28:15,751 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 12:28:15,751 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:15,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 12:28:15,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:28:15,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-12-02 12:28:16,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 14 [2024-12-02 12:28:16,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2024-12-02 12:28:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:16,252 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:28:16,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:16,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715056366] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:28:16,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:28:16,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 25 [2024-12-02 12:28:16,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861434031] [2024-12-02 12:28:16,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:28:16,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 12:28:16,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:16,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 12:28:16,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2024-12-02 12:28:16,868 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:16,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 67 transitions, 579 flow. Second operand has 25 states, 25 states have (on average 13.2) internal successors, (330), 25 states have internal predecessors, (330), 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) [2024-12-02 12:28:16,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:16,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:16,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:18,125 INFO L124 PetriNetUnfolderBase]: 228/449 cut-off events. [2024-12-02 12:28:18,125 INFO L125 PetriNetUnfolderBase]: For 1676/1676 co-relation queries the response was YES. [2024-12-02 12:28:18,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1920 conditions, 449 events. 228/449 cut-off events. For 1676/1676 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1696 event pairs, 26 based on Foata normal form. 1/450 useless extension candidates. Maximal degree in co-relation 1899. Up to 188 conditions per place. [2024-12-02 12:28:18,128 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 47 selfloop transitions, 20 changer transitions 42/110 dead transitions. [2024-12-02 12:28:18,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 110 transitions, 1018 flow [2024-12-02 12:28:18,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 12:28:18,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-12-02 12:28:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 284 transitions. [2024-12-02 12:28:18,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24912280701754386 [2024-12-02 12:28:18,131 INFO L175 Difference]: Start difference. First operand has 93 places, 67 transitions, 579 flow. Second operand 19 states and 284 transitions. [2024-12-02 12:28:18,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 110 transitions, 1018 flow [2024-12-02 12:28:18,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 110 transitions, 902 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-12-02 12:28:18,135 INFO L231 Difference]: Finished difference. Result has 92 places, 53 transitions, 379 flow [2024-12-02 12:28:18,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=379, PETRI_PLACES=92, PETRI_TRANSITIONS=53} [2024-12-02 12:28:18,136 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 39 predicate places. [2024-12-02 12:28:18,136 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 53 transitions, 379 flow [2024-12-02 12:28:18,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 13.2) internal successors, (330), 25 states have internal predecessors, (330), 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) [2024-12-02 12:28:18,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:18,137 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:18,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:28:18,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 12:28:18,337 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:18,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:18,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1044009422, now seen corresponding path program 5 times [2024-12-02 12:28:18,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:18,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456354996] [2024-12-02 12:28:18,338 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 12:28:18,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:18,360 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 12:28:18,360 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:18,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:18,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456354996] [2024-12-02 12:28:18,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456354996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:18,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:18,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:28:18,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186034272] [2024-12-02 12:28:18,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:18,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:28:18,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:18,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:28:18,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:28:18,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-12-02 12:28:18,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 53 transitions, 379 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 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) [2024-12-02 12:28:18,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:18,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-12-02 12:28:18,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:18,616 INFO L124 PetriNetUnfolderBase]: 97/204 cut-off events. [2024-12-02 12:28:18,616 INFO L125 PetriNetUnfolderBase]: For 792/792 co-relation queries the response was YES. [2024-12-02 12:28:18,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 204 events. 97/204 cut-off events. For 792/792 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 577 event pairs, 9 based on Foata normal form. 12/216 useless extension candidates. Maximal degree in co-relation 814. Up to 96 conditions per place. [2024-12-02 12:28:18,617 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 45 selfloop transitions, 14 changer transitions 0/64 dead transitions. [2024-12-02 12:28:18,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 64 transitions, 545 flow [2024-12-02 12:28:18,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:28:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 12:28:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-12-02 12:28:18,618 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2024-12-02 12:28:18,618 INFO L175 Difference]: Start difference. First operand has 92 places, 53 transitions, 379 flow. Second operand 5 states and 154 transitions. [2024-12-02 12:28:18,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 64 transitions, 545 flow [2024-12-02 12:28:18,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 422 flow, removed 17 selfloop flow, removed 19 redundant places. [2024-12-02 12:28:18,622 INFO L231 Difference]: Finished difference. Result has 66 places, 51 transitions, 312 flow [2024-12-02 12:28:18,622 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=66, PETRI_TRANSITIONS=51} [2024-12-02 12:28:18,622 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 13 predicate places. [2024-12-02 12:28:18,622 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 51 transitions, 312 flow [2024-12-02 12:28:18,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 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) [2024-12-02 12:28:18,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:18,623 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:18,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:28:18,623 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:18,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:18,623 INFO L85 PathProgramCache]: Analyzing trace with hash 50014096, now seen corresponding path program 6 times [2024-12-02 12:28:18,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:18,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175108443] [2024-12-02 12:28:18,624 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 12:28:18,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:18,655 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-12-02 12:28:18,655 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:19,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:19,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:19,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175108443] [2024-12-02 12:28:19,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175108443] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:28:19,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143694408] [2024-12-02 12:28:19,334 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 12:28:19,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:28:19,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:28:19,336 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:28:19,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:28:19,515 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-12-02 12:28:19,515 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:28:19,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 12:28:19,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:28:19,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-12-02 12:28:19,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 14 [2024-12-02 12:28:19,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2024-12-02 12:28:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:19,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:28:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:20,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143694408] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:28:20,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:28:20,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 24 [2024-12-02 12:28:20,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690263500] [2024-12-02 12:28:20,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:28:20,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 12:28:20,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:20,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 12:28:20,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2024-12-02 12:28:20,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:20,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 312 flow. Second operand has 24 states, 24 states have (on average 13.25) internal successors, (318), 24 states have internal predecessors, (318), 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) [2024-12-02 12:28:20,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:20,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:20,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:21,349 INFO L124 PetriNetUnfolderBase]: 144/303 cut-off events. [2024-12-02 12:28:21,349 INFO L125 PetriNetUnfolderBase]: For 793/793 co-relation queries the response was YES. [2024-12-02 12:28:21,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 303 events. 144/303 cut-off events. For 793/793 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 995 event pairs, 7 based on Foata normal form. 1/304 useless extension candidates. Maximal degree in co-relation 740. Up to 65 conditions per place. [2024-12-02 12:28:21,351 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 39 selfloop transitions, 16 changer transitions 37/93 dead transitions. [2024-12-02 12:28:21,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 93 transitions, 681 flow [2024-12-02 12:28:21,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 12:28:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 12:28:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 259 transitions. [2024-12-02 12:28:21,352 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23981481481481481 [2024-12-02 12:28:21,352 INFO L175 Difference]: Start difference. First operand has 66 places, 51 transitions, 312 flow. Second operand 18 states and 259 transitions. [2024-12-02 12:28:21,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 93 transitions, 681 flow [2024-12-02 12:28:21,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 93 transitions, 633 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-12-02 12:28:21,356 INFO L231 Difference]: Finished difference. Result has 79 places, 43 transitions, 246 flow [2024-12-02 12:28:21,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=246, PETRI_PLACES=79, PETRI_TRANSITIONS=43} [2024-12-02 12:28:21,357 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 26 predicate places. [2024-12-02 12:28:21,357 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 43 transitions, 246 flow [2024-12-02 12:28:21,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.25) internal successors, (318), 24 states have internal predecessors, (318), 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) [2024-12-02 12:28:21,357 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 12:28:21,357 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:21,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:28:21,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 12:28:21,558 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-12-02 12:28:21,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:21,558 INFO L85 PathProgramCache]: Analyzing trace with hash -302123464, now seen corresponding path program 7 times [2024-12-02 12:28:21,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:21,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268639274] [2024-12-02 12:28:21,559 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 12:28:21,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:21,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:21,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:21,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268639274] [2024-12-02 12:28:21,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268639274] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:28:21,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639044755] [2024-12-02 12:28:21,995 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 12:28:21,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:28:21,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:28:21,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:28:21,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:28:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:22,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 12:28:22,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:28:22,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-12-02 12:28:22,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 14 [2024-12-02 12:28:22,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2024-12-02 12:28:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:22,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:28:22,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:28:22,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639044755] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:28:22,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:28:22,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 24 [2024-12-02 12:28:22,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883185874] [2024-12-02 12:28:22,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:28:22,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 12:28:22,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:22,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 12:28:22,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2024-12-02 12:28:23,016 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-12-02 12:28:23,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 43 transitions, 246 flow. Second operand has 24 states, 24 states have (on average 13.25) internal successors, (318), 24 states have internal predecessors, (318), 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) [2024-12-02 12:28:23,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 12:28:23,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-12-02 12:28:23,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 12:28:23,981 INFO L124 PetriNetUnfolderBase]: 76/169 cut-off events. [2024-12-02 12:28:23,981 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-12-02 12:28:23,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 169 events. 76/169 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 426 event pairs, 4 based on Foata normal form. 1/170 useless extension candidates. Maximal degree in co-relation 575. Up to 38 conditions per place. [2024-12-02 12:28:23,982 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2024-12-02 12:28:23,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 61 transitions, 443 flow [2024-12-02 12:28:23,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:28:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-12-02 12:28:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 218 transitions. [2024-12-02 12:28:23,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.22708333333333333 [2024-12-02 12:28:23,983 INFO L175 Difference]: Start difference. First operand has 79 places, 43 transitions, 246 flow. Second operand 16 states and 218 transitions. [2024-12-02 12:28:23,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 61 transitions, 443 flow [2024-12-02 12:28:23,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 369 flow, removed 1 selfloop flow, removed 20 redundant places. [2024-12-02 12:28:23,984 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2024-12-02 12:28:23,984 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2024-12-02 12:28:23,984 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2024-12-02 12:28:23,984 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2024-12-02 12:28:23,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.25) internal successors, (318), 24 states have internal predecessors, (318), 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) [2024-12-02 12:28:23,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-12-02 12:28:23,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-12-02 12:28:23,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-12-02 12:28:23,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-12-02 12:28:23,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-12-02 12:28:23,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-12-02 12:28:23,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-12-02 12:28:23,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-12-02 12:28:23,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:28:24,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 12:28:24,188 INFO L422 BasicCegarLoop]: Path program histogram: [7, 5, 1, 1, 1, 1] [2024-12-02 12:28:24,191 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 12:28:24,191 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:28:24,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:28:24 BasicIcfg [2024-12-02 12:28:24,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:28:24,196 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:28:24,196 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:28:24,196 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:28:24,196 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:28:05" (3/4) ... [2024-12-02 12:28:24,198 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 12:28:24,201 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2024-12-02 12:28:24,204 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2024-12-02 12:28:24,204 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-12-02 12:28:24,204 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-12-02 12:28:24,205 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:28:24,264 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 12:28:24,264 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 12:28:24,264 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:28:24,265 INFO L158 Benchmark]: Toolchain (without parser) took 20293.63ms. Allocated memory was 142.6MB in the beginning and 486.5MB in the end (delta: 343.9MB). Free memory was 114.4MB in the beginning and 294.6MB in the end (delta: -180.1MB). Peak memory consumption was 164.9MB. Max. memory is 16.1GB. [2024-12-02 12:28:24,265 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:28:24,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.95ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 83.7MB in the end (delta: 30.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 12:28:24,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.44ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 81.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:28:24,266 INFO L158 Benchmark]: Boogie Preprocessor took 43.88ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 77.7MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:28:24,266 INFO L158 Benchmark]: RCFGBuilder took 606.44ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 99.3MB in the end (delta: -21.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-12-02 12:28:24,266 INFO L158 Benchmark]: TraceAbstraction took 19036.41ms. Allocated memory was 142.6MB in the beginning and 486.5MB in the end (delta: 343.9MB). Free memory was 98.6MB in the beginning and 298.8MB in the end (delta: -200.2MB). Peak memory consumption was 149.4MB. Max. memory is 16.1GB. [2024-12-02 12:28:24,266 INFO L158 Benchmark]: Witness Printer took 68.35ms. Allocated memory is still 486.5MB. Free memory was 298.8MB in the beginning and 294.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:28:24,268 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.95ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 83.7MB in the end (delta: 30.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.44ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 81.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.88ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 77.7MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 606.44ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 99.3MB in the end (delta: -21.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19036.41ms. Allocated memory was 142.6MB in the beginning and 486.5MB in the end (delta: 343.9MB). Free memory was 98.6MB in the beginning and 298.8MB in the end (delta: -200.2MB). Peak memory consumption was 149.4MB. Max. memory is 16.1GB. * Witness Printer took 68.35ms. Allocated memory is still 486.5MB. Free memory was 298.8MB in the beginning and 294.6MB 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: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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 4 procedures, 60 locations, 8 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: 18.9s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1135 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1071 mSDsluCounter, 708 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 679 mSDsCounter, 173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4723 IncrementalHoareTripleChecker+Invalid, 4896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 173 mSolverCounterUnsat, 29 mSDtfsCounter, 4723 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 179 SyntacticMatches, 3 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred in iteration=10, InterpolantAutomatonStates: 154, 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, 0.4s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 500 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 571 ConstructedInterpolants, 56 QuantifiedInterpolants, 8247 SizeOfPredicates, 54 NumberOfNonLiveVariables, 948 ConjunctsInSsa, 135 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 1/10 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 12:28:24,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecad8994-2389-44dd-b88e-48fb406e11d7/bin/uautomizer-verify-84ZbGMXZE1/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