./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_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_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB --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 3e2d1ca14c91be6e836759580a015ed2d4b9eb8ea9888f9f925ea579405b630f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:17:11,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:17:11,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:17:11,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:17:11,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:17:11,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:17:11,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:17:11,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:17:11,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:17:11,687 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:17:11,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:17:11,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:17:11,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:17:11,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:17:11,689 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:17:11,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:17:11,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:17:11,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:17:11,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:17:11,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:17:11,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:17:11,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:17:11,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:17:11,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:17:11,692 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:17:11,692 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:17:11,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:17:11,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:17:11,692 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:17:11,692 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:17:11,692 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:17:11,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:17:11,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:17:11,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:17:11,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:11,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:17:11,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:17:11,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:17:11,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:17:11,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:11,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:17:11,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:17:11,696 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:17:11,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:17:11,696 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:17:11,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:17:11,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:17:11,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:17:11,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:17:11,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:17:11,697 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_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3e2d1ca14c91be6e836759580a015ed2d4b9eb8ea9888f9f925ea579405b630f [2024-11-28 03:17:12,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:17:12,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:17:12,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:17:12,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:17:12,067 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:17:12,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-11-28 03:17:15,082 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/data/d1404a820/8ccd56e6b52f4179a9edc91b68777339/FLAGd2a73115e [2024-11-28 03:17:15,482 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:17:15,482 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-11-28 03:17:15,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/data/d1404a820/8ccd56e6b52f4179a9edc91b68777339/FLAGd2a73115e [2024-11-28 03:17:15,637 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/data/d1404a820/8ccd56e6b52f4179a9edc91b68777339 [2024-11-28 03:17:15,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:17:15,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:17:15,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:17:15,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:17:15,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:17:15,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:15" (1/1) ... [2024-11-28 03:17:15,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af86fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:15, skipping insertion in model container [2024-11-28 03:17:15,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:15" (1/1) ... [2024-11-28 03:17:15,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:17:16,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:17:16,165 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:17:16,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:17:16,301 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:17:16,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16 WrapperNode [2024-11-28 03:17:16,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:17:16,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:17:16,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:17:16,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:17:16,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,375 INFO L138 Inliner]: procedures = 252, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 145 [2024-11-28 03:17:16,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:17:16,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:17:16,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:17:16,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:17:16,387 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,394 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,420 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 2, 5]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 0, 5]. The 1 writes are split as follows [0, 0, 0, 1, 0]. [2024-11-28 03:17:16,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,435 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:17:16,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:17:16,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:17:16,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:17:16,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (1/1) ... [2024-11-28 03:17:16,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:16,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:16,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:17:16,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e9b9f2-a5ca-4401-a0de-3f588300cc14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:17:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:17:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:17:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:17:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:17:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:17:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:17:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:17:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:17:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:17:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:17:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:17:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:17:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:17:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:17:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:17:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 03:17:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 03:17:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:17:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:17:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:17:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:17:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:17:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:17:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:17:16,538 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:17:16,677 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:17:16,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:17:17,022 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:17:17,022 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:17:17,242 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:17:17,242 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 03:17:17,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:17 BoogieIcfgContainer [2024-11-28 03:17:17,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:17:17,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:17:17,247 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:17:17,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:17:17,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:15" (1/3) ... [2024-11-28 03:17:17,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3846b0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:17, skipping insertion in model container [2024-11-28 03:17:17,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:16" (2/3) ... [2024-11-28 03:17:17,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3846b0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:17, skipping insertion in model container [2024-11-28 03:17:17,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:17" (3/3) ... [2024-11-28 03:17:17,259 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_28-funptr_racefree.i [2024-11-28 03:17:17,280 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:17:17,282 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_28-funptr_racefree.i that has 2 procedures, 59 locations, 1 initial locations, 6 loop locations, and 8 error locations. [2024-11-28 03:17:17,282 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:17:17,347 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 03:17:17,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 68 transitions, 143 flow [2024-11-28 03:17:17,457 INFO L124 PetriNetUnfolderBase]: 11/87 cut-off events. [2024-11-28 03:17:17,460 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:17:17,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 11/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 239 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 59. Up to 4 conditions per place. [2024-11-28 03:17:17,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 68 transitions, 143 flow [2024-11-28 03:17:17,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 67 transitions, 141 flow [2024-11-28 03:17:17,480 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:17,492 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;@11fbdc07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:17,492 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 03:17:17,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:17:17,497 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-28 03:17:17,499 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:17:17,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:17,500 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 03:17:17,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:17:17,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:17,506 INFO L85 PathProgramCache]: Analyzing trace with hash 386951177, now seen corresponding path program 1 times [2024-11-28 03:17:17,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:17,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421618742] [2024-11-28 03:17:17,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:17,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:17,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:17,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421618742] [2024-11-28 03:17:17,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421618742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:17,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:17,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:17,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077012121] [2024-11-28 03:17:17,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:17,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:17:17,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:17,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:17:17,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:17:18,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 68 [2024-11-28 03:17:18,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 67 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:18,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:18,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 68 [2024-11-28 03:17:18,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:18,425 INFO L124 PetriNetUnfolderBase]: 240/694 cut-off events. [2024-11-28 03:17:18,425 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:17:18,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 694 events. 240/694 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3492 event pairs, 78 based on Foata normal form. 98/738 useless extension candidates. Maximal degree in co-relation 1185. Up to 464 conditions per place. [2024-11-28 03:17:18,433 INFO L140 encePairwiseOnDemand]: 54/68 looper letters, 64 selfloop transitions, 3 changer transitions 0/90 dead transitions. [2024-11-28 03:17:18,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 90 transitions, 321 flow [2024-11-28 03:17:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:17:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:17:18,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2024-11-28 03:17:18,458 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6691176470588235 [2024-11-28 03:17:18,459 INFO L175 Difference]: Start difference. First operand has 62 places, 67 transitions, 141 flow. Second operand 4 states and 182 transitions. [2024-11-28 03:17:18,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 90 transitions, 321 flow [2024-11-28 03:17:18,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 90 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:17:18,475 INFO L231 Difference]: Finished difference. Result has 64 places, 57 transitions, 131 flow [2024-11-28 03:17:18,477 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2024-11-28 03:17:18,482 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-11-28 03:17:18,484 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 131 flow [2024-11-28 03:17:18,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:18,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:18,484 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:18,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:17:18,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 03:17:18,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:18,485 INFO L85 PathProgramCache]: Analyzing trace with hash -29312542, now seen corresponding path program 1 times [2024-11-28 03:17:18,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:18,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818000511] [2024-11-28 03:17:18,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:18,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:18,544 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:17:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:18,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:17:18,599 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:17:18,603 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-28 03:17:18,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-28 03:17:18,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-28 03:17:18,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-28 03:17:18,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-28 03:17:18,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-28 03:17:18,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-28 03:17:18,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-28 03:17:18,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-28 03:17:18,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-28 03:17:18,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-28 03:17:18,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-28 03:17:18,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-28 03:17:18,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:17:18,611 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 03:17:18,615 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:17:18,615 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:17:18,663 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:17:18,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 105 transitions, 226 flow [2024-11-28 03:17:18,695 INFO L124 PetriNetUnfolderBase]: 21/162 cut-off events. [2024-11-28 03:17:18,696 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 03:17:18,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 162 events. 21/162 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 590 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 103. Up to 6 conditions per place. [2024-11-28 03:17:18,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 105 transitions, 226 flow [2024-11-28 03:17:18,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 105 transitions, 226 flow [2024-11-28 03:17:18,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:18,704 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;@11fbdc07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:18,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-28 03:17:18,710 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:17:18,710 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-28 03:17:18,710 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:17:18,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:18,710 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 03:17:18,713 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-28 03:17:18,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:18,714 INFO L85 PathProgramCache]: Analyzing trace with hash 487186837, now seen corresponding path program 1 times [2024-11-28 03:17:18,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:18,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732030053] [2024-11-28 03:17:18,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:18,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:18,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732030053] [2024-11-28 03:17:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732030053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:18,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074130008] [2024-11-28 03:17:18,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:18,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:17:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:18,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:17:18,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:17:18,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 105 [2024-11-28 03:17:18,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 105 transitions, 226 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) [2024-11-28 03:17:18,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:18,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 105 [2024-11-28 03:17:18,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:21,759 INFO L124 PetriNetUnfolderBase]: 9858/19690 cut-off events. [2024-11-28 03:17:21,760 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-28 03:17:21,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35206 conditions, 19690 events. 9858/19690 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 167504 event pairs, 4688 based on Foata normal form. 2837/20923 useless extension candidates. Maximal degree in co-relation 2015. Up to 15372 conditions per place. [2024-11-28 03:17:21,890 INFO L140 encePairwiseOnDemand]: 85/105 looper letters, 87 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2024-11-28 03:17:21,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 126 transitions, 448 flow [2024-11-28 03:17:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:17:21,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:17:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2024-11-28 03:17:21,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6261904761904762 [2024-11-28 03:17:21,896 INFO L175 Difference]: Start difference. First operand has 94 places, 105 transitions, 226 flow. Second operand 4 states and 263 transitions. [2024-11-28 03:17:21,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 126 transitions, 448 flow [2024-11-28 03:17:21,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 126 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:17:21,903 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 222 flow [2024-11-28 03:17:21,903 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2024-11-28 03:17:21,904 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2024-11-28 03:17:21,904 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 222 flow [2024-11-28 03:17:21,905 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) [2024-11-28 03:17:21,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:21,905 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:21,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:17:21,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-28 03:17:21,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:21,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1377561510, now seen corresponding path program 1 times [2024-11-28 03:17:21,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:21,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077846815] [2024-11-28 03:17:21,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:21,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:22,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:22,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077846815] [2024-11-28 03:17:22,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077846815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:22,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:22,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:17:22,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551663602] [2024-11-28 03:17:22,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:22,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:22,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:22,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:22,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:22,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 105 [2024-11-28 03:17:22,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 37.5) internal successors, (225), 6 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:22,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:22,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 105 [2024-11-28 03:17:22,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:24,520 INFO L124 PetriNetUnfolderBase]: 9314/17192 cut-off events. [2024-11-28 03:17:24,520 INFO L125 PetriNetUnfolderBase]: For 1139/1139 co-relation queries the response was YES. [2024-11-28 03:17:24,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33120 conditions, 17192 events. 9314/17192 cut-off events. For 1139/1139 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 137243 event pairs, 527 based on Foata normal form. 289/16590 useless extension candidates. Maximal degree in co-relation 1951. Up to 10580 conditions per place. [2024-11-28 03:17:24,643 INFO L140 encePairwiseOnDemand]: 100/105 looper letters, 147 selfloop transitions, 6 changer transitions 0/189 dead transitions. [2024-11-28 03:17:24,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 189 transitions, 718 flow [2024-11-28 03:17:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:17:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:17:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 370 transitions. [2024-11-28 03:17:24,648 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2024-11-28 03:17:24,648 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 222 flow. Second operand 6 states and 370 transitions. [2024-11-28 03:17:24,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 189 transitions, 718 flow [2024-11-28 03:17:24,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 189 transitions, 716 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:17:24,657 INFO L231 Difference]: Finished difference. Result has 102 places, 92 transitions, 228 flow [2024-11-28 03:17:24,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=102, PETRI_TRANSITIONS=92} [2024-11-28 03:17:24,659 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-11-28 03:17:24,659 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 92 transitions, 228 flow [2024-11-28 03:17:24,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 6 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:24,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:24,661 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 03:17:24,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:17:24,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-28 03:17:24,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:24,661 INFO L85 PathProgramCache]: Analyzing trace with hash 245266653, now seen corresponding path program 1 times [2024-11-28 03:17:24,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:24,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196522023] [2024-11-28 03:17:24,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:24,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:24,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196522023] [2024-11-28 03:17:24,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196522023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:24,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:24,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:24,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743539010] [2024-11-28 03:17:24,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:24,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:17:24,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:24,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:17:24,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:17:24,772 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 105 [2024-11-28 03:17:24,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 92 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:24,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:24,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 105 [2024-11-28 03:17:24,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:26,308 INFO L124 PetriNetUnfolderBase]: 8770/16053 cut-off events. [2024-11-28 03:17:26,308 INFO L125 PetriNetUnfolderBase]: For 2264/2264 co-relation queries the response was YES. [2024-11-28 03:17:26,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31761 conditions, 16053 events. 8770/16053 cut-off events. For 2264/2264 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 124845 event pairs, 635 based on Foata normal form. 289/15824 useless extension candidates. Maximal degree in co-relation 15354. Up to 11446 conditions per place. [2024-11-28 03:17:26,385 INFO L140 encePairwiseOnDemand]: 100/105 looper letters, 114 selfloop transitions, 6 changer transitions 0/156 dead transitions. [2024-11-28 03:17:26,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 156 transitions, 594 flow [2024-11-28 03:17:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:17:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:17:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2024-11-28 03:17:26,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6261904761904762 [2024-11-28 03:17:26,392 INFO L175 Difference]: Start difference. First operand has 102 places, 92 transitions, 228 flow. Second operand 4 states and 263 transitions. [2024-11-28 03:17:26,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 156 transitions, 594 flow [2024-11-28 03:17:26,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 156 transitions, 578 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-28 03:17:26,413 INFO L231 Difference]: Finished difference. Result has 100 places, 92 transitions, 228 flow [2024-11-28 03:17:26,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=100, PETRI_TRANSITIONS=92} [2024-11-28 03:17:26,414 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 6 predicate places. [2024-11-28 03:17:26,414 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 92 transitions, 228 flow [2024-11-28 03:17:26,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:26,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:26,417 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 03:17:26,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:17:26,418 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-28 03:17:26,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:26,419 INFO L85 PathProgramCache]: Analyzing trace with hash -521930915, now seen corresponding path program 1 times [2024-11-28 03:17:26,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:26,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029380998] [2024-11-28 03:17:26,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:26,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:26,451 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:17:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:26,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:17:26,484 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:17:26,487 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-28 03:17:26,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-28 03:17:26,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-28 03:17:26,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-28 03:17:26,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-28 03:17:26,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-28 03:17:26,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-28 03:17:26,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-28 03:17:26,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-28 03:17:26,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-28 03:17:26,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-28 03:17:26,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-28 03:17:26,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-28 03:17:26,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-28 03:17:26,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-28 03:17:26,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-28 03:17:26,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-28 03:17:26,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:17:26,490 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:17:26,491 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:17:26,491 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 03:17:26,540 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 03:17:26,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 142 transitions, 311 flow [2024-11-28 03:17:26,592 INFO L124 PetriNetUnfolderBase]: 34/256 cut-off events. [2024-11-28 03:17:26,592 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 03:17:26,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 256 events. 34/256 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1068 event pairs, 1 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 177. Up to 12 conditions per place. [2024-11-28 03:17:26,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 142 transitions, 311 flow [2024-11-28 03:17:26,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 142 transitions, 311 flow [2024-11-28 03:17:26,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:26,599 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;@11fbdc07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:26,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-28 03:17:26,602 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:17:26,602 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-28 03:17:26,603 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:17:26,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:26,603 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 03:17:26,603 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-28 03:17:26,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:26,603 INFO L85 PathProgramCache]: Analyzing trace with hash 622731782, now seen corresponding path program 1 times [2024-11-28 03:17:26,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:26,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853909243] [2024-11-28 03:17:26,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:26,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:26,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:26,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853909243] [2024-11-28 03:17:26,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853909243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:26,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:26,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:26,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539012063] [2024-11-28 03:17:26,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:26,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:17:26,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:26,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:17:26,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:17:26,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 142 [2024-11-28 03:17:26,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 142 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:26,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:26,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 142 [2024-11-28 03:17:26,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand