./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/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_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:31:05,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:31:05,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 15:31:05,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:31:05,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:31:05,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:31:05,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:31:05,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:31:05,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:31:05,510 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:31:05,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:31:05,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:31:05,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:31:05,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:31:05,511 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:31:05,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:31:05,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:31:05,512 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:31:05,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:31:05,513 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:31:05,513 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:31:05,513 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:31:05,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:31:05,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:31:05,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:31:05,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:31:05,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:31:05,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:31:05,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:31:05,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:31:05,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:31:05,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:31:05,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:31:05,515 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:31:05,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:31:05,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:31:05,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:31:05,515 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:31:05,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:31:05,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:31:05,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:31:05,515 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_e3a977a5-ba24-4697-9e7c-416f0ed94f90/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 ! overflow) ) 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 -> 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f [2024-12-02 15:31:05,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:31:05,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:31:05,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:31:05,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:31:05,757 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:31:05,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i [2024-12-02 15:31:08,458 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/data/b05274520/cf18d93eba41441cbf4cac778fcb1df9/FLAG7630ac195 [2024-12-02 15:31:08,724 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:31:08,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i [2024-12-02 15:31:08,737 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/data/b05274520/cf18d93eba41441cbf4cac778fcb1df9/FLAG7630ac195 [2024-12-02 15:31:09,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/data/b05274520/cf18d93eba41441cbf4cac778fcb1df9 [2024-12-02 15:31:09,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:31:09,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:31:09,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:31:09,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:31:09,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:31:09,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fad2d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09, skipping insertion in model container [2024-12-02 15:31:09,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,082 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:31:09,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:31:09,381 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:31:09,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:31:09,469 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:31:09,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09 WrapperNode [2024-12-02 15:31:09,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:31:09,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:31:09,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:31:09,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:31:09,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,509 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 200 [2024-12-02 15:31:09,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:31:09,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:31:09,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:31:09,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:31:09,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,524 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,541 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-12-02 15:31:09,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,551 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:31:09,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:31:09,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:31:09,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:31:09,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (1/1) ... [2024-12-02 15:31:09,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:31:09,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:31:09,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:31:09,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a977a5-ba24-4697-9e7c-416f0ed94f90/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 15:31:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 15:31:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 15:31:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:31:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:31:09,626 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 15:31:09,747 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:31:09,749 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:31:10,021 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 15:31:10,022 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:31:10,389 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:31:10,390 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-12-02 15:31:10,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:10 BoogieIcfgContainer [2024-12-02 15:31:10,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:31:10,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:31:10,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:31:10,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:31:10,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:31:09" (1/3) ... [2024-12-02 15:31:10,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d12ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:31:10, skipping insertion in model container [2024-12-02 15:31:10,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:09" (2/3) ... [2024-12-02 15:31:10,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d12ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:31:10, skipping insertion in model container [2024-12-02 15:31:10,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:10" (3/3) ... [2024-12-02 15:31:10,399 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_20-callback_racefree.i [2024-12-02 15:31:10,414 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:31:10,416 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_20-callback_racefree.i that has 2 procedures, 58 locations, 1 initial locations, 7 loop locations, and 10 error locations. [2024-12-02 15:31:10,416 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 15:31:10,459 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-02 15:31:10,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 69 transitions, 145 flow [2024-12-02 15:31:10,551 INFO L124 PetriNetUnfolderBase]: 19/112 cut-off events. [2024-12-02 15:31:10,553 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:31:10,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 112 events. 19/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 389 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2024-12-02 15:31:10,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 69 transitions, 145 flow [2024-12-02 15:31:10,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 68 transitions, 143 flow [2024-12-02 15:31:10,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:31:10,579 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;@25d2e51c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:31:10,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-02 15:31:10,588 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:31:10,589 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-12-02 15:31:10,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:31:10,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:10,589 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 15:31:10,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:10,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:10,595 INFO L85 PathProgramCache]: Analyzing trace with hash 526552552, now seen corresponding path program 1 times [2024-12-02 15:31:10,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:10,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99769822] [2024-12-02 15:31:10,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:10,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:10,907 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 15:31:10,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:10,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99769822] [2024-12-02 15:31:10,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99769822] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:10,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:10,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:31:10,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908370047] [2024-12-02 15:31:10,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:10,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:31:10,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:10,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:31:10,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:31:10,958 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2024-12-02 15:31:10,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 68 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 15:31:10,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:10,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2024-12-02 15:31:10,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:11,197 INFO L124 PetriNetUnfolderBase]: 134/422 cut-off events. [2024-12-02 15:31:11,198 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:31:11,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 422 events. 134/422 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2098 event pairs, 0 based on Foata normal form. 56/428 useless extension candidates. Maximal degree in co-relation 687. Up to 263 conditions per place. [2024-12-02 15:31:11,203 INFO L140 encePairwiseOnDemand]: 55/69 looper letters, 40 selfloop transitions, 3 changer transitions 1/71 dead transitions. [2024-12-02 15:31:11,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 237 flow [2024-12-02 15:31:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:31:11,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:31:11,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-12-02 15:31:11,216 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.605072463768116 [2024-12-02 15:31:11,217 INFO L175 Difference]: Start difference. First operand has 61 places, 68 transitions, 143 flow. Second operand 4 states and 167 transitions. [2024-12-02 15:31:11,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 237 flow [2024-12-02 15:31:11,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 237 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 15:31:11,226 INFO L231 Difference]: Finished difference. Result has 63 places, 57 transitions, 131 flow [2024-12-02 15:31:11,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=63, PETRI_TRANSITIONS=57} [2024-12-02 15:31:11,231 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2024-12-02 15:31:11,231 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 57 transitions, 131 flow [2024-12-02 15:31:11,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 15:31:11,232 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:11,232 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:11,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:31:11,232 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:11,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:11,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1307055699, now seen corresponding path program 1 times [2024-12-02 15:31:11,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:11,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145162298] [2024-12-02 15:31:11,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:11,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:31:11,296 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:31:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:31:11,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 15:31:11,357 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 15:31:11,358 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-12-02 15:31:11,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-12-02 15:31:11,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-12-02 15:31:11,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:31:11,362 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 15:31:11,365 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 15:31:11,365 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 15:31:11,391 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 15:31:11,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 83 transitions, 182 flow [2024-12-02 15:31:11,423 INFO L124 PetriNetUnfolderBase]: 31/188 cut-off events. [2024-12-02 15:31:11,423 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-12-02 15:31:11,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 188 events. 31/188 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 800 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 120. Up to 9 conditions per place. [2024-12-02 15:31:11,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 83 transitions, 182 flow [2024-12-02 15:31:11,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 83 transitions, 182 flow [2024-12-02 15:31:11,428 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:31:11,428 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;@25d2e51c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:31:11,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-02 15:31:11,435 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:31:11,435 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-12-02 15:31:11,435 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:31:11,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:11,435 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 15:31:11,436 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:11,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:11,436 INFO L85 PathProgramCache]: Analyzing trace with hash 605771399, now seen corresponding path program 1 times [2024-12-02 15:31:11,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:11,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444241113] [2024-12-02 15:31:11,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:11,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:11,573 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 15:31:11,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:11,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444241113] [2024-12-02 15:31:11,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444241113] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:11,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:11,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:31:11,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430351789] [2024-12-02 15:31:11,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:11,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:31:11,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:11,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:31:11,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:31:11,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-12-02 15:31:11,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 83 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:11,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:11,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-12-02 15:31:11,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:12,466 INFO L124 PetriNetUnfolderBase]: 2160/4561 cut-off events. [2024-12-02 15:31:12,466 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-12-02 15:31:12,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8079 conditions, 4561 events. 2160/4561 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 33839 event pairs, 948 based on Foata normal form. 565/4661 useless extension candidates. Maximal degree in co-relation 1072. Up to 3454 conditions per place. [2024-12-02 15:31:12,490 INFO L140 encePairwiseOnDemand]: 67/83 looper letters, 53 selfloop transitions, 3 changer transitions 1/88 dead transitions. [2024-12-02 15:31:12,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 88 transitions, 306 flow [2024-12-02 15:31:12,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:31:12,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:31:12,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-12-02 15:31:12,492 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5963855421686747 [2024-12-02 15:31:12,492 INFO L175 Difference]: Start difference. First operand has 74 places, 83 transitions, 182 flow. Second operand 4 states and 198 transitions. [2024-12-02 15:31:12,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 88 transitions, 306 flow [2024-12-02 15:31:12,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 88 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 15:31:12,494 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 184 flow [2024-12-02 15:31:12,495 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-12-02 15:31:12,495 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-12-02 15:31:12,495 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 184 flow [2024-12-02 15:31:12,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:12,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:12,496 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:12,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:31:12,496 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:12,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:12,497 INFO L85 PathProgramCache]: Analyzing trace with hash -3431907, now seen corresponding path program 1 times [2024-12-02 15:31:12,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:12,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097401415] [2024-12-02 15:31:12,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:12,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:12,644 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 15:31:12,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:12,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097401415] [2024-12-02 15:31:12,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097401415] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:12,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:12,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:31:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666787624] [2024-12-02 15:31:12,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:12,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:31:12,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:12,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:31:12,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:31:12,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-12-02 15:31:12,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 32.5) internal successors, (195), 6 states have internal predecessors, (195), 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 15:31:12,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:12,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-12-02 15:31:12,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:13,194 INFO L124 PetriNetUnfolderBase]: 1980/4331 cut-off events. [2024-12-02 15:31:13,194 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-12-02 15:31:13,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7791 conditions, 4331 events. 1980/4331 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 33163 event pairs, 84 based on Foata normal form. 49/4022 useless extension candidates. Maximal degree in co-relation 1129. Up to 2512 conditions per place. [2024-12-02 15:31:13,210 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 73 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2024-12-02 15:31:13,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 110 transitions, 412 flow [2024-12-02 15:31:13,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:31:13,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:31:13,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 266 transitions. [2024-12-02 15:31:13,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5341365461847389 [2024-12-02 15:31:13,212 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 184 flow. Second operand 6 states and 266 transitions. [2024-12-02 15:31:13,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 110 transitions, 412 flow [2024-12-02 15:31:13,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 110 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:31:13,216 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 190 flow [2024-12-02 15:31:13,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2024-12-02 15:31:13,217 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2024-12-02 15:31:13,217 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 190 flow [2024-12-02 15:31:13,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.5) internal successors, (195), 6 states have internal predecessors, (195), 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 15:31:13,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:13,218 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 15:31:13,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:31:13,218 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:13,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:13,219 INFO L85 PathProgramCache]: Analyzing trace with hash -106388486, now seen corresponding path program 1 times [2024-12-02 15:31:13,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:13,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400262752] [2024-12-02 15:31:13,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:13,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:31:13,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:13,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400262752] [2024-12-02 15:31:13,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400262752] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:13,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:13,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:31:13,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423719893] [2024-12-02 15:31:13,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:13,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:31:13,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:13,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:31:13,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:31:13,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-12-02 15:31:13,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:13,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:13,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-12-02 15:31:13,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:13,699 INFO L124 PetriNetUnfolderBase]: 1896/4151 cut-off events. [2024-12-02 15:31:13,699 INFO L125 PetriNetUnfolderBase]: For 436/436 co-relation queries the response was YES. [2024-12-02 15:31:13,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7591 conditions, 4151 events. 1896/4151 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 31316 event pairs, 84 based on Foata normal form. 49/3901 useless extension candidates. Maximal degree in co-relation 4630. Up to 2658 conditions per place. [2024-12-02 15:31:13,713 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 60 selfloop transitions, 6 changer transitions 0/97 dead transitions. [2024-12-02 15:31:13,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 97 transitions, 368 flow [2024-12-02 15:31:13,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:31:13,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:31:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-12-02 15:31:13,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5692771084337349 [2024-12-02 15:31:13,715 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 190 flow. Second operand 4 states and 189 transitions. [2024-12-02 15:31:13,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 97 transitions, 368 flow [2024-12-02 15:31:13,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 97 transitions, 352 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-12-02 15:31:13,720 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 190 flow [2024-12-02 15:31:13,721 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2024-12-02 15:31:13,721 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-12-02 15:31:13,721 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 190 flow [2024-12-02 15:31:13,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:13,722 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:13,722 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:13,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:31:13,722 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:13,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:13,723 INFO L85 PathProgramCache]: Analyzing trace with hash -108184965, now seen corresponding path program 1 times [2024-12-02 15:31:13,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:13,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579000581] [2024-12-02 15:31:13,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:13,811 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 15:31:13,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:13,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579000581] [2024-12-02 15:31:13,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579000581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:13,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:13,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:31:13,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046005610] [2024-12-02 15:31:13,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:13,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:31:13,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:13,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:31:13,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:31:13,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-12-02 15:31:13,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:13,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:13,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-12-02 15:31:13,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:14,160 INFO L124 PetriNetUnfolderBase]: 1791/3850 cut-off events. [2024-12-02 15:31:14,161 INFO L125 PetriNetUnfolderBase]: For 568/568 co-relation queries the response was YES. [2024-12-02 15:31:14,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7080 conditions, 3850 events. 1791/3850 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 28195 event pairs, 73 based on Foata normal form. 7/3583 useless extension candidates. Maximal degree in co-relation 1792. Up to 2575 conditions per place. [2024-12-02 15:31:14,177 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 63 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-12-02 15:31:14,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 98 transitions, 377 flow [2024-12-02 15:31:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:31:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 15:31:14,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 223 transitions. [2024-12-02 15:31:14,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5373493975903615 [2024-12-02 15:31:14,179 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 190 flow. Second operand 5 states and 223 transitions. [2024-12-02 15:31:14,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 98 transitions, 377 flow [2024-12-02 15:31:14,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 98 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 15:31:14,183 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 194 flow [2024-12-02 15:31:14,183 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2024-12-02 15:31:14,184 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 8 predicate places. [2024-12-02 15:31:14,184 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 194 flow [2024-12-02 15:31:14,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:14,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:14,184 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-12-02 15:31:14,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:31:14,184 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:14,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash 839900157, now seen corresponding path program 1 times [2024-12-02 15:31:14,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:14,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399850721] [2024-12-02 15:31:14,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:14,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:31:14,216 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:31:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:31:14,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 15:31:14,240 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-12-02 15:31:14,241 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-12-02 15:31:14,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-12-02 15:31:14,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-12-02 15:31:14,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:31:14,242 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 15:31:14,243 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 15:31:14,243 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 15:31:14,273 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 15:31:14,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 97 transitions, 221 flow [2024-12-02 15:31:14,313 INFO L124 PetriNetUnfolderBase]: 46/283 cut-off events. [2024-12-02 15:31:14,313 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2024-12-02 15:31:14,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 283 events. 46/283 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1324 event pairs, 1 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 203. Up to 12 conditions per place. [2024-12-02 15:31:14,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 97 transitions, 221 flow [2024-12-02 15:31:14,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 97 transitions, 221 flow [2024-12-02 15:31:14,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:31:14,319 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;@25d2e51c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:31:14,319 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-02 15:31:14,324 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:31:14,324 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-12-02 15:31:14,324 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:31:14,324 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:14,324 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 15:31:14,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:14,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:14,325 INFO L85 PathProgramCache]: Analyzing trace with hash 698350516, now seen corresponding path program 1 times [2024-12-02 15:31:14,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:14,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963327630] [2024-12-02 15:31:14,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:14,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:14,416 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 15:31:14,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:14,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963327630] [2024-12-02 15:31:14,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963327630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:14,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:14,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:31:14,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128819089] [2024-12-02 15:31:14,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:14,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:31:14,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:14,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:31:14,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:31:14,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-12-02 15:31:14,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 97 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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 15:31:14,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:14,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-12-02 15:31:14,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:17,540 INFO L124 PetriNetUnfolderBase]: 23689/40289 cut-off events. [2024-12-02 15:31:17,540 INFO L125 PetriNetUnfolderBase]: For 711/711 co-relation queries the response was YES. [2024-12-02 15:31:17,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74067 conditions, 40289 events. 23689/40289 cut-off events. For 711/711 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 341383 event pairs, 17439 based on Foata normal form. 5361/42263 useless extension candidates. Maximal degree in co-relation 12666. Up to 33341 conditions per place. [2024-12-02 15:31:17,739 INFO L140 encePairwiseOnDemand]: 79/97 looper letters, 61 selfloop transitions, 3 changer transitions 1/100 dead transitions. [2024-12-02 15:31:17,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 100 transitions, 357 flow [2024-12-02 15:31:17,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:31:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:31:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 224 transitions. [2024-12-02 15:31:17,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5773195876288659 [2024-12-02 15:31:17,741 INFO L175 Difference]: Start difference. First operand has 87 places, 97 transitions, 221 flow. Second operand 4 states and 224 transitions. [2024-12-02 15:31:17,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 100 transitions, 357 flow [2024-12-02 15:31:17,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 100 transitions, 357 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 15:31:17,744 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 219 flow [2024-12-02 15:31:17,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2024-12-02 15:31:17,745 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2024-12-02 15:31:17,745 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 219 flow [2024-12-02 15:31:17,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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 15:31:17,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:17,746 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:17,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:31:17,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:17,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1363880387, now seen corresponding path program 1 times [2024-12-02 15:31:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:17,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143957607] [2024-12-02 15:31:17,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:17,858 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 15:31:17,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:17,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143957607] [2024-12-02 15:31:17,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143957607] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:17,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:17,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:31:17,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895010731] [2024-12-02 15:31:17,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:17,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:31:17,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:17,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:31:17,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:31:17,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-12-02 15:31:17,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 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 15:31:17,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:17,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-12-02 15:31:17,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:20,456 INFO L124 PetriNetUnfolderBase]: 21571/38727 cut-off events. [2024-12-02 15:31:20,456 INFO L125 PetriNetUnfolderBase]: For 2010/2010 co-relation queries the response was YES. [2024-12-02 15:31:20,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71090 conditions, 38727 events. 21571/38727 cut-off events. For 2010/2010 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 351970 event pairs, 1456 based on Foata normal form. 392/36402 useless extension candidates. Maximal degree in co-relation 10302. Up to 23839 conditions per place. [2024-12-02 15:31:20,646 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 93 selfloop transitions, 6 changer transitions 0/134 dead transitions. [2024-12-02 15:31:20,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 134 transitions, 511 flow [2024-12-02 15:31:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:31:20,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:31:20,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 310 transitions. [2024-12-02 15:31:20,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5326460481099656 [2024-12-02 15:31:20,649 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 219 flow. Second operand 6 states and 310 transitions. [2024-12-02 15:31:20,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 134 transitions, 511 flow [2024-12-02 15:31:20,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 134 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:31:20,654 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 225 flow [2024-12-02 15:31:20,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=94, PETRI_TRANSITIONS=85} [2024-12-02 15:31:20,655 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 7 predicate places. [2024-12-02 15:31:20,655 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 225 flow [2024-12-02 15:31:20,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 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 15:31:20,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:20,656 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 15:31:20,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:31:20,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:20,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash 669381691, now seen corresponding path program 1 times [2024-12-02 15:31:20,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:20,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493606815] [2024-12-02 15:31:20,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:20,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:20,731 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 15:31:20,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:20,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493606815] [2024-12-02 15:31:20,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493606815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:20,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:20,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:31:20,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888216128] [2024-12-02 15:31:20,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:20,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:31:20,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:20,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:31:20,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:31:20,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-12-02 15:31:20,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 15:31:20,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:20,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-12-02 15:31:20,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:23,192 INFO L124 PetriNetUnfolderBase]: 20605/37037 cut-off events. [2024-12-02 15:31:23,192 INFO L125 PetriNetUnfolderBase]: For 3277/3277 co-relation queries the response was YES. [2024-12-02 15:31:23,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68841 conditions, 37037 events. 20605/37037 cut-off events. For 3277/3277 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 335227 event pairs, 1162 based on Foata normal form. 392/35235 useless extension candidates. Maximal degree in co-relation 11497. Up to 25210 conditions per place. [2024-12-02 15:31:23,326 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 80 selfloop transitions, 6 changer transitions 0/121 dead transitions. [2024-12-02 15:31:23,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 121 transitions, 467 flow [2024-12-02 15:31:23,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:31:23,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:31:23,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-12-02 15:31:23,328 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5798969072164949 [2024-12-02 15:31:23,328 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 225 flow. Second operand 4 states and 225 transitions. [2024-12-02 15:31:23,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 121 transitions, 467 flow [2024-12-02 15:31:23,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 121 transitions, 451 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-12-02 15:31:23,336 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 225 flow [2024-12-02 15:31:23,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-12-02 15:31:23,336 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2024-12-02 15:31:23,336 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 225 flow [2024-12-02 15:31:23,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 15:31:23,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:23,337 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:23,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:31:23,337 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:23,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:23,337 INFO L85 PathProgramCache]: Analyzing trace with hash 667227720, now seen corresponding path program 1 times [2024-12-02 15:31:23,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:23,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423463985] [2024-12-02 15:31:23,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:23,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:23,428 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 15:31:23,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:23,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423463985] [2024-12-02 15:31:23,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423463985] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:23,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:23,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:31:23,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092915948] [2024-12-02 15:31:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:23,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:31:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:23,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:31:23,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:31:23,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-12-02 15:31:23,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:23,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:23,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-12-02 15:31:23,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:25,574 INFO L124 PetriNetUnfolderBase]: 20500/36328 cut-off events. [2024-12-02 15:31:25,575 INFO L125 PetriNetUnfolderBase]: For 4776/4776 co-relation queries the response was YES. [2024-12-02 15:31:25,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67922 conditions, 36328 events. 20500/36328 cut-off events. For 4776/4776 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 319017 event pairs, 5936 based on Foata normal form. 7/34178 useless extension candidates. Maximal degree in co-relation 7532. Up to 28508 conditions per place. [2024-12-02 15:31:25,722 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 73 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2024-12-02 15:31:25,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 112 transitions, 445 flow [2024-12-02 15:31:25,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:31:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 15:31:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 253 transitions. [2024-12-02 15:31:25,724 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5216494845360825 [2024-12-02 15:31:25,724 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 225 flow. Second operand 5 states and 253 transitions. [2024-12-02 15:31:25,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 112 transitions, 445 flow [2024-12-02 15:31:25,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 112 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 15:31:25,729 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 237 flow [2024-12-02 15:31:25,730 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2024-12-02 15:31:25,730 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 8 predicate places. [2024-12-02 15:31:25,730 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 237 flow [2024-12-02 15:31:25,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:25,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:25,731 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:25,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:31:25,731 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:25,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:25,732 INFO L85 PathProgramCache]: Analyzing trace with hash -343661039, now seen corresponding path program 1 times [2024-12-02 15:31:25,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:25,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813129657] [2024-12-02 15:31:25,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:25,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:25,810 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 15:31:25,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:25,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813129657] [2024-12-02 15:31:25,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813129657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:25,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:25,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:31:25,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276801345] [2024-12-02 15:31:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:25,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:31:25,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:25,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:31:25,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:31:25,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-12-02 15:31:25,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:25,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:25,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-12-02 15:31:25,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:30,350 INFO L124 PetriNetUnfolderBase]: 37308/64738 cut-off events. [2024-12-02 15:31:30,350 INFO L125 PetriNetUnfolderBase]: For 4487/4487 co-relation queries the response was YES. [2024-12-02 15:31:30,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119465 conditions, 64738 events. 37308/64738 cut-off events. For 4487/4487 co-relation queries the response was YES. Maximal size of possible extension queue 1821. Compared 603093 event pairs, 21578 based on Foata normal form. 392/61364 useless extension candidates. Maximal degree in co-relation 84041. Up to 31483 conditions per place. [2024-12-02 15:31:30,620 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 101 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-12-02 15:31:30,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 138 transitions, 549 flow [2024-12-02 15:31:30,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:31:30,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:31:30,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-12-02 15:31:30,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6288659793814433 [2024-12-02 15:31:30,622 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 237 flow. Second operand 4 states and 244 transitions. [2024-12-02 15:31:30,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 138 transitions, 549 flow [2024-12-02 15:31:30,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 138 transitions, 543 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 15:31:30,627 INFO L231 Difference]: Finished difference. Result has 97 places, 88 transitions, 255 flow [2024-12-02 15:31:30,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=255, PETRI_PLACES=97, PETRI_TRANSITIONS=88} [2024-12-02 15:31:30,628 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 10 predicate places. [2024-12-02 15:31:30,628 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 88 transitions, 255 flow [2024-12-02 15:31:30,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:31:30,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:30,628 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1] [2024-12-02 15:31:30,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:31:30,629 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:30,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:30,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1742125486, now seen corresponding path program 1 times [2024-12-02 15:31:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:30,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010431213] [2024-12-02 15:31:30,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:30,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:31:30,669 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:31:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:31:30,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 15:31:30,690 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 15:31:30,690 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-12-02 15:31:30,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-12-02 15:31:30,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-12-02 15:31:30,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:31:30,691 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 15:31:30,692 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 15:31:30,692 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-12-02 15:31:30,716 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-02 15:31:30,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 111 transitions, 262 flow [2024-12-02 15:31:30,747 INFO L124 PetriNetUnfolderBase]: 69/418 cut-off events. [2024-12-02 15:31:30,747 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2024-12-02 15:31:30,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 418 events. 69/418 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2067 event pairs, 6 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 311. Up to 32 conditions per place. [2024-12-02 15:31:30,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 111 transitions, 262 flow [2024-12-02 15:31:30,752 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 111 transitions, 262 flow [2024-12-02 15:31:30,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:31:30,753 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;@25d2e51c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:31:30,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-02 15:31:30,756 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:31:30,756 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-12-02 15:31:30,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:31:30,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:30,756 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 15:31:30,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:30,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:30,757 INFO L85 PathProgramCache]: Analyzing trace with hash 804289903, now seen corresponding path program 1 times [2024-12-02 15:31:30,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:30,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585377574] [2024-12-02 15:31:30,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:30,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:30,818 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 15:31:30,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:30,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585377574] [2024-12-02 15:31:30,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585377574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:30,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:30,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:31:30,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631105889] [2024-12-02 15:31:30,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:30,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:31:30,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:30,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:31:30,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:31:30,825 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 111 [2024-12-02 15:31:30,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 111 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 15:31:30,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:30,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 111 [2024-12-02 15:31:30,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:31:53,588 INFO L124 PetriNetUnfolderBase]: 228940/345166 cut-off events. [2024-12-02 15:31:53,588 INFO L125 PetriNetUnfolderBase]: For 9411/9411 co-relation queries the response was YES. [2024-12-02 15:31:54,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648065 conditions, 345166 events. 228940/345166 cut-off events. For 9411/9411 co-relation queries the response was YES. Maximal size of possible extension queue 8046. Compared 3162348 event pairs, 183944 based on Foata normal form. 47708/369801 useless extension candidates. Maximal degree in co-relation 74008. Up to 298890 conditions per place. [2024-12-02 15:31:55,352 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 69 selfloop transitions, 3 changer transitions 1/112 dead transitions. [2024-12-02 15:31:55,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 410 flow [2024-12-02 15:31:55,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:31:55,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:31:55,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 250 transitions. [2024-12-02 15:31:55,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5630630630630631 [2024-12-02 15:31:55,355 INFO L175 Difference]: Start difference. First operand has 100 places, 111 transitions, 262 flow. Second operand 4 states and 250 transitions. [2024-12-02 15:31:55,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 410 flow [2024-12-02 15:31:55,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 112 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 15:31:55,361 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 256 flow [2024-12-02 15:31:55,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2024-12-02 15:31:55,362 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2024-12-02 15:31:55,362 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 256 flow [2024-12-02 15:31:55,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 15:31:55,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:31:55,362 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 15:31:55,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:31:55,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:31:55,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:31:55,362 INFO L85 PathProgramCache]: Analyzing trace with hash -2131250403, now seen corresponding path program 1 times [2024-12-02 15:31:55,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:31:55,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729032031] [2024-12-02 15:31:55,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:31:55,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:31:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:31:55,480 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 15:31:55,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:31:55,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729032031] [2024-12-02 15:31:55,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729032031] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:31:55,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:31:55,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:31:55,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876620315] [2024-12-02 15:31:55,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:31:55,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:31:55,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:31:55,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:31:55,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:31:55,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 111 [2024-12-02 15:31:55,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 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 15:31:55,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:31:55,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 111 [2024-12-02 15:31:55,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:32:17,836 INFO L124 PetriNetUnfolderBase]: 207454/331430 cut-off events. [2024-12-02 15:32:17,836 INFO L125 PetriNetUnfolderBase]: For 16606/16606 co-relation queries the response was YES. [2024-12-02 15:32:18,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617165 conditions, 331430 events. 207454/331430 cut-off events. For 16606/16606 co-relation queries the response was YES. Maximal size of possible extension queue 8125. Compared 3344842 event pairs, 17052 based on Foata normal form. 2793/314447 useless extension candidates. Maximal degree in co-relation 88790. Up to 212928 conditions per place. [2024-12-02 15:32:19,483 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 113 selfloop transitions, 6 changer transitions 0/158 dead transitions. [2024-12-02 15:32:19,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 158 transitions, 612 flow [2024-12-02 15:32:19,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:32:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:32:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 354 transitions. [2024-12-02 15:32:19,484 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5315315315315315 [2024-12-02 15:32:19,485 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 256 flow. Second operand 6 states and 354 transitions. [2024-12-02 15:32:19,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 158 transitions, 612 flow [2024-12-02 15:32:19,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 158 transitions, 610 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:32:19,498 INFO L231 Difference]: Finished difference. Result has 107 places, 97 transitions, 262 flow [2024-12-02 15:32:19,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=107, PETRI_TRANSITIONS=97} [2024-12-02 15:32:19,498 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 7 predicate places. [2024-12-02 15:32:19,499 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 262 flow [2024-12-02 15:32:19,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 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 15:32:19,499 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:32:19,499 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 15:32:19,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:32:19,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:32:19,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:19,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1644252214, now seen corresponding path program 1 times [2024-12-02 15:32:19,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:32:19,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611683244] [2024-12-02 15:32:19,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:19,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:19,560 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 15:32:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:32:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611683244] [2024-12-02 15:32:19,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611683244] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:32:19,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:32:19,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:32:19,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858708705] [2024-12-02 15:32:19,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:32:19,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:32:19,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:32:19,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:32:19,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:32:19,570 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 111 [2024-12-02 15:32:19,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 97 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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 15:32:19,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:32:19,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 111 [2024-12-02 15:32:19,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:32:40,872 INFO L124 PetriNetUnfolderBase]: 198256/318683 cut-off events. [2024-12-02 15:32:40,872 INFO L125 PetriNetUnfolderBase]: For 27120/27120 co-relation queries the response was YES. [2024-12-02 15:32:41,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598028 conditions, 318683 events. 198256/318683 cut-off events. For 27120/27120 co-relation queries the response was YES. Maximal size of possible extension queue 7827. Compared 3241794 event pairs, 16176 based on Foata normal form. 2793/305440 useless extension candidates. Maximal degree in co-relation 69167. Up to 224932 conditions per place. [2024-12-02 15:32:42,500 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 100 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2024-12-02 15:32:42,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 145 transitions, 568 flow [2024-12-02 15:32:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:32:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:32:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2024-12-02 15:32:42,502 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5878378378378378 [2024-12-02 15:32:42,502 INFO L175 Difference]: Start difference. First operand has 107 places, 97 transitions, 262 flow. Second operand 4 states and 261 transitions. [2024-12-02 15:32:42,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 145 transitions, 568 flow [2024-12-02 15:32:42,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 145 transitions, 552 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-12-02 15:32:42,658 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 262 flow [2024-12-02 15:32:42,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2024-12-02 15:32:42,659 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2024-12-02 15:32:42,660 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 262 flow [2024-12-02 15:32:42,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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 15:32:42,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:32:42,660 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:32:42,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 15:32:42,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:32:42,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:42,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1646763677, now seen corresponding path program 1 times [2024-12-02 15:32:42,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:32:42,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607590903] [2024-12-02 15:32:42,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:42,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:42,886 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 15:32:42,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:32:42,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607590903] [2024-12-02 15:32:42,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607590903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:32:42,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:32:42,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:32:42,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515342275] [2024-12-02 15:32:42,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:32:42,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:32:42,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:32:42,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:32:42,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:32:42,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 111 [2024-12-02 15:32:42,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 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 15:32:42,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:32:42,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 111 [2024-12-02 15:32:42,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:33:02,069 INFO L124 PetriNetUnfolderBase]: 198151/307553 cut-off events. [2024-12-02 15:33:02,070 INFO L125 PetriNetUnfolderBase]: For 38378/38378 co-relation queries the response was YES. [2024-12-02 15:33:02,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586688 conditions, 307553 events. 198151/307553 cut-off events. For 38378/38378 co-relation queries the response was YES. Maximal size of possible extension queue 7170. Compared 2905357 event pairs, 91555 based on Foata normal form. 7/292621 useless extension candidates. Maximal degree in co-relation 67781. Up to 258071 conditions per place. [2024-12-02 15:33:03,515 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 81 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2024-12-02 15:33:03,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 124 transitions, 498 flow [2024-12-02 15:33:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:33:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 15:33:03,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 281 transitions. [2024-12-02 15:33:03,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5063063063063064 [2024-12-02 15:33:03,518 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 262 flow. Second operand 5 states and 281 transitions. [2024-12-02 15:33:03,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 124 transitions, 498 flow [2024-12-02 15:33:03,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 124 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 15:33:03,532 INFO L231 Difference]: Finished difference. Result has 108 places, 98 transitions, 274 flow [2024-12-02 15:33:03,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=274, PETRI_PLACES=108, PETRI_TRANSITIONS=98} [2024-12-02 15:33:03,532 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2024-12-02 15:33:03,532 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 98 transitions, 274 flow [2024-12-02 15:33:03,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 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 15:33:03,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:33:03,533 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:03,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 15:33:03,533 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:33:03,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:03,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1818238097, now seen corresponding path program 1 times [2024-12-02 15:33:03,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:03,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108377883] [2024-12-02 15:33:03,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:03,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:03,600 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 15:33:03,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:03,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108377883] [2024-12-02 15:33:03,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108377883] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:33:03,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:33:03,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:33:03,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888227814] [2024-12-02 15:33:03,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:33:03,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:33:03,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:03,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:33:03,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:33:03,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 111 [2024-12-02 15:33:03,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 98 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 15:33:03,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:33:03,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 111 [2024-12-02 15:33:03,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:33:41,502 INFO L124 PetriNetUnfolderBase]: 357304/557875 cut-off events. [2024-12-02 15:33:41,502 INFO L125 PetriNetUnfolderBase]: For 35407/35407 co-relation queries the response was YES. [2024-12-02 15:33:42,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1041030 conditions, 557875 events. 357304/557875 cut-off events. For 35407/35407 co-relation queries the response was YES. Maximal size of possible extension queue 13097. Compared 5685453 event pairs, 210379 based on Foata normal form. 2793/533508 useless extension candidates. Maximal degree in co-relation 738211. Up to 282312 conditions per place. [2024-12-02 15:33:44,445 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 121 selfloop transitions, 3 changer transitions 0/162 dead transitions. [2024-12-02 15:33:44,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 162 transitions, 650 flow [2024-12-02 15:33:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:33:44,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 15:33:44,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2024-12-02 15:33:44,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6306306306306306 [2024-12-02 15:33:44,447 INFO L175 Difference]: Start difference. First operand has 108 places, 98 transitions, 274 flow. Second operand 4 states and 280 transitions. [2024-12-02 15:33:44,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 162 transitions, 650 flow [2024-12-02 15:33:44,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 162 transitions, 644 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 15:33:44,473 INFO L231 Difference]: Finished difference. Result has 110 places, 100 transitions, 292 flow [2024-12-02 15:33:44,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=292, PETRI_PLACES=110, PETRI_TRANSITIONS=100} [2024-12-02 15:33:44,474 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 10 predicate places. [2024-12-02 15:33:44,474 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 100 transitions, 292 flow [2024-12-02 15:33:44,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 15:33:44,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:33:44,474 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:44,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 15:33:44,474 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-12-02 15:33:44,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:44,475 INFO L85 PathProgramCache]: Analyzing trace with hash 287208756, now seen corresponding path program 1 times [2024-12-02 15:33:44,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:44,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5492444] [2024-12-02 15:33:44,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:44,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:44,680 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 15:33:44,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:44,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5492444] [2024-12-02 15:33:44,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5492444] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:33:44,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:33:44,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:33:44,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506156248] [2024-12-02 15:33:44,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:33:44,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:33:44,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:44,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:33:44,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:33:44,687 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 111 [2024-12-02 15:33:44,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 100 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 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 15:33:44,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:33:44,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 111 [2024-12-02 15:33:44,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand