./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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-?-48c9605-m [2025-02-08 14:05:46,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:05:46,335 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:05:46,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:05:46,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:05:46,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:05:46,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:05:46,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:05:46,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:05:46,369 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:05:46,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:05:46,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:05:46,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:05:46,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:05:46,371 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:05:46,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:05:46,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:05:46,371 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:05:46,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:05:46,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:05:46,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:05:46,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:05:46,372 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:05:46,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:05:46,372 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:05:46,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:05:46,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:05:46,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:05:46,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:05:46,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:05:46,374 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 [2025-02-08 14:05:46,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:05:46,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:05:46,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:05:46,596 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:05:46,596 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:05:46,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2025-02-08 14:05:47,738 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6431d27d0/3953f14fa68c4af3ba60a9c03f2fafc7/FLAG20ee377a2 [2025-02-08 14:05:48,080 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:05:48,081 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2025-02-08 14:05:48,090 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6431d27d0/3953f14fa68c4af3ba60a9c03f2fafc7/FLAG20ee377a2 [2025-02-08 14:05:48,327 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6431d27d0/3953f14fa68c4af3ba60a9c03f2fafc7 [2025-02-08 14:05:48,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:05:48,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:05:48,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:05:48,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:05:48,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:05:48,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd28bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48, skipping insertion in model container [2025-02-08 14:05:48,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:05:48,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:05:48,669 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:05:48,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:05:48,752 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:05:48,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48 WrapperNode [2025-02-08 14:05:48,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:05:48,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:05:48,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:05:48,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:05:48,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,781 INFO L138 Inliner]: procedures = 252, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 141 [2025-02-08 14:05:48,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:05:48,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:05:48,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:05:48,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:05:48,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,798 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2025-02-08 14:05:48,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,803 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:05:48,807 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:05:48,807 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:05:48,808 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:05:48,808 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (1/1) ... [2025-02-08 14:05:48,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:05:48,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:05:48,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:05:48,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:05:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 14:05:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 14:05:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:05:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:05:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:05:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:05:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:05:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:05:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 14:05:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 14:05:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:05:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:05:48,851 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:05:48,937 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:05:48,939 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:05:49,075 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L911: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-08 14:05:49,075 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L911-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-08 14:05:49,133 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:05:49,133 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:05:49,267 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:05:49,267 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:05:49,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:05:49 BoogieIcfgContainer [2025-02-08 14:05:49,268 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:05:49,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:05:49,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:05:49,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:05:49,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:05:48" (1/3) ... [2025-02-08 14:05:49,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687cd72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:05:49, skipping insertion in model container [2025-02-08 14:05:49,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:48" (2/3) ... [2025-02-08 14:05:49,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687cd72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:05:49, skipping insertion in model container [2025-02-08 14:05:49,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:05:49" (3/3) ... [2025-02-08 14:05:49,277 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_28-funptr_racefree.i [2025-02-08 14:05:49,289 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:05:49,291 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_28-funptr_racefree.i that has 2 procedures, 62 locations, 1 initial locations, 6 loop locations, and 8 error locations. [2025-02-08 14:05:49,292 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:05:49,337 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 14:05:49,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 71 transitions, 149 flow [2025-02-08 14:05:49,400 INFO L124 PetriNetUnfolderBase]: 11/91 cut-off events. [2025-02-08 14:05:49,403 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:05:49,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 11/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 264 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2025-02-08 14:05:49,406 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 71 transitions, 149 flow [2025-02-08 14:05:49,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 70 transitions, 147 flow [2025-02-08 14:05:49,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:05:49,429 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;@3ca34b98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:05:49,430 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-02-08 14:05:49,435 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:05:49,436 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-02-08 14:05:49,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:05:49,437 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:49,437 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:05:49,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:05:49,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:49,441 INFO L85 PathProgramCache]: Analyzing trace with hash 351502469, now seen corresponding path program 1 times [2025-02-08 14:05:49,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:49,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131114369] [2025-02-08 14:05:49,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:49,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:49,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:05:49,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:05:49,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:49,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:05:49,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:49,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131114369] [2025-02-08 14:05:49,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131114369] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:49,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:49,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:05:49,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3294568] [2025-02-08 14:05:49,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:49,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:05:49,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:49,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:05:49,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:05:49,696 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 71 [2025-02-08 14:05:49,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2025-02-08 14:05:49,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:49,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 71 [2025-02-08 14:05:49,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:49,912 INFO L124 PetriNetUnfolderBase]: 240/655 cut-off events. [2025-02-08 14:05:49,912 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:05:49,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1176 conditions, 655 events. 240/655 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3297 event pairs, 0 based on Foata normal form. 147/759 useless extension candidates. Maximal degree in co-relation 1141. Up to 464 conditions per place. [2025-02-08 14:05:49,920 INFO L140 encePairwiseOnDemand]: 57/71 looper letters, 64 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2025-02-08 14:05:49,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 93 transitions, 327 flow [2025-02-08 14:05:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:05:49,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:05:49,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 194 transitions. [2025-02-08 14:05:49,932 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6830985915492958 [2025-02-08 14:05:49,933 INFO L175 Difference]: Start difference. First operand has 65 places, 70 transitions, 147 flow. Second operand 4 states and 194 transitions. [2025-02-08 14:05:49,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 93 transitions, 327 flow [2025-02-08 14:05:49,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 93 transitions, 327 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:05:49,941 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 137 flow [2025-02-08 14:05:49,944 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2025-02-08 14:05:49,946 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2025-02-08 14:05:49,946 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 137 flow [2025-02-08 14:05:49,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2025-02-08 14:05:49,947 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:49,947 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:05:49,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:05:49,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:05:49,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:49,948 INFO L85 PathProgramCache]: Analyzing trace with hash 480066558, now seen corresponding path program 1 times [2025-02-08 14:05:49,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:49,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087659013] [2025-02-08 14:05:49,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:49,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:49,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:05:49,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:05:49,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:49,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:05:49,982 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:05:49,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:05:50,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:05:50,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:50,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:05:50,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:05:50,025 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 14:05:50,027 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2025-02-08 14:05:50,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-02-08 14:05:50,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-02-08 14:05:50,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-02-08 14:05:50,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-02-08 14:05:50,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-02-08 14:05:50,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2025-02-08 14:05:50,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2025-02-08 14:05:50,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2025-02-08 14:05:50,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-02-08 14:05:50,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-02-08 14:05:50,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-02-08 14:05:50,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-02-08 14:05:50,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:05:50,030 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 14:05:50,032 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 14:05:50,032 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 14:05:50,059 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:05:50,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 110 transitions, 236 flow [2025-02-08 14:05:50,078 INFO L124 PetriNetUnfolderBase]: 21/169 cut-off events. [2025-02-08 14:05:50,079 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 14:05:50,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 169 events. 21/169 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 638 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 108. Up to 6 conditions per place. [2025-02-08 14:05:50,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 110 transitions, 236 flow [2025-02-08 14:05:50,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 110 transitions, 236 flow [2025-02-08 14:05:50,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:05:50,084 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;@3ca34b98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:05:50,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-02-08 14:05:50,086 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:05:50,087 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-02-08 14:05:50,087 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:05:50,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:50,087 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:05:50,087 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:05:50,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:50,089 INFO L85 PathProgramCache]: Analyzing trace with hash 456511576, now seen corresponding path program 1 times [2025-02-08 14:05:50,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:50,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045011522] [2025-02-08 14:05:50,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:50,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:50,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:05:50,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:05:50,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:50,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:05:50,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:50,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045011522] [2025-02-08 14:05:50,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045011522] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:50,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:50,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:05:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877055067] [2025-02-08 14:05:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:50,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:05:50,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:50,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:05:50,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:05:50,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 110 [2025-02-08 14:05:50,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 110 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2025-02-08 14:05:50,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:50,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 110 [2025-02-08 14:05:50,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:51,777 INFO L124 PetriNetUnfolderBase]: 9858/20202 cut-off events. [2025-02-08 14:05:51,778 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2025-02-08 14:05:51,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35718 conditions, 20202 events. 9858/20202 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 175910 event pairs, 4688 based on Foata normal form. 4323/22870 useless extension candidates. Maximal degree in co-relation 2044. Up to 15372 conditions per place. [2025-02-08 14:05:51,887 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 87 selfloop transitions, 3 changer transitions 0/131 dead transitions. [2025-02-08 14:05:51,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 131 transitions, 458 flow [2025-02-08 14:05:51,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:05:51,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:05:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2025-02-08 14:05:51,891 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6431818181818182 [2025-02-08 14:05:51,891 INFO L175 Difference]: Start difference. First operand has 99 places, 110 transitions, 236 flow. Second operand 4 states and 283 transitions. [2025-02-08 14:05:51,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 131 transitions, 458 flow [2025-02-08 14:05:51,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 131 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:05:51,896 INFO L231 Difference]: Finished difference. Result has 104 places, 98 transitions, 232 flow [2025-02-08 14:05:51,896 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=104, PETRI_TRANSITIONS=98} [2025-02-08 14:05:51,897 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2025-02-08 14:05:51,897 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 98 transitions, 232 flow [2025-02-08 14:05:51,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2025-02-08 14:05:51,898 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:51,898 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:05:51,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:05:51,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:05:51,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:51,898 INFO L85 PathProgramCache]: Analyzing trace with hash 979783400, now seen corresponding path program 1 times [2025-02-08 14:05:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:51,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128179675] [2025-02-08 14:05:51,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:51,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:05:51,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:05:51,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:51,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:05:52,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:52,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128179675] [2025-02-08 14:05:52,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128179675] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:52,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:52,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:05:52,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571325108] [2025-02-08 14:05:52,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:52,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:05:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:52,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:05:52,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:05:52,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 110 [2025-02-08 14:05:52,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 98 transitions, 232 flow. Second operand has 6 states, 6 states have (on average 42.5) internal successors, (255), 6 states have internal predecessors, (255), 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) [2025-02-08 14:05:52,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:52,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 110 [2025-02-08 14:05:52,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:53,256 INFO L124 PetriNetUnfolderBase]: 9314/17380 cut-off events. [2025-02-08 14:05:53,257 INFO L125 PetriNetUnfolderBase]: For 969/969 co-relation queries the response was YES. [2025-02-08 14:05:53,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33308 conditions, 17380 events. 9314/17380 cut-off events. For 969/969 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 140413 event pairs, 544 based on Foata normal form. 289/16764 useless extension candidates. Maximal degree in co-relation 1962. Up to 10580 conditions per place. [2025-02-08 14:05:53,324 INFO L140 encePairwiseOnDemand]: 105/110 looper letters, 147 selfloop transitions, 6 changer transitions 0/194 dead transitions. [2025-02-08 14:05:53,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 194 transitions, 728 flow [2025-02-08 14:05:53,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:05:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:05:53,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 400 transitions. [2025-02-08 14:05:53,327 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2025-02-08 14:05:53,327 INFO L175 Difference]: Start difference. First operand has 104 places, 98 transitions, 232 flow. Second operand 6 states and 400 transitions. [2025-02-08 14:05:53,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 194 transitions, 728 flow [2025-02-08 14:05:53,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 194 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:05:53,333 INFO L231 Difference]: Finished difference. Result has 107 places, 97 transitions, 238 flow [2025-02-08 14:05:53,334 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=226, 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=238, PETRI_PLACES=107, PETRI_TRANSITIONS=97} [2025-02-08 14:05:53,335 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 8 predicate places. [2025-02-08 14:05:53,335 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 238 flow [2025-02-08 14:05:53,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.5) internal successors, (255), 6 states have internal predecessors, (255), 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) [2025-02-08 14:05:53,336 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:53,336 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:05:53,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:05:53,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:05:53,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash 308514718, now seen corresponding path program 1 times [2025-02-08 14:05:53,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:53,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609224533] [2025-02-08 14:05:53,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:53,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:53,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:05:53,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:05:53,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:53,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:53,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:05:53,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:53,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609224533] [2025-02-08 14:05:53,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609224533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:53,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:53,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:05:53,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171448825] [2025-02-08 14:05:53,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:53,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:05:53,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:53,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:05:53,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:05:53,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 110 [2025-02-08 14:05:53,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 97 transitions, 238 flow. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2025-02-08 14:05:53,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:53,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 110 [2025-02-08 14:05:53,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:54,492 INFO L124 PetriNetUnfolderBase]: 8770/18182 cut-off events. [2025-02-08 14:05:54,493 INFO L125 PetriNetUnfolderBase]: For 2831/2831 co-relation queries the response was YES. [2025-02-08 14:05:54,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33890 conditions, 18182 events. 8770/18182 cut-off events. For 2831/2831 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 154901 event pairs, 3040 based on Foata normal form. 289/17563 useless extension candidates. Maximal degree in co-relation 16570. Up to 11446 conditions per place. [2025-02-08 14:05:54,551 INFO L140 encePairwiseOnDemand]: 105/110 looper letters, 114 selfloop transitions, 6 changer transitions 0/161 dead transitions. [2025-02-08 14:05:54,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 161 transitions, 604 flow [2025-02-08 14:05:54,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:05:54,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:05:54,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2025-02-08 14:05:54,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6431818181818182 [2025-02-08 14:05:54,556 INFO L175 Difference]: Start difference. First operand has 107 places, 97 transitions, 238 flow. Second operand 4 states and 283 transitions. [2025-02-08 14:05:54,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 161 transitions, 604 flow [2025-02-08 14:05:54,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 161 transitions, 588 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-02-08 14:05:54,568 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 238 flow [2025-02-08 14:05:54,569 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=218, 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=238, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2025-02-08 14:05:54,569 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 6 predicate places. [2025-02-08 14:05:54,569 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 238 flow [2025-02-08 14:05:54,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2025-02-08 14:05:54,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:54,570 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2025-02-08 14:05:54,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:05:54,570 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:05:54,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:54,570 INFO L85 PathProgramCache]: Analyzing trace with hash 129915278, now seen corresponding path program 1 times [2025-02-08 14:05:54,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:54,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085349321] [2025-02-08 14:05:54,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:54,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:54,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:05:54,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:05:54,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:54,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:05:54,582 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:05:54,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:05:54,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:05:54,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:54,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:05:54,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:05:54,592 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 14:05:54,592 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2025-02-08 14:05:54,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2025-02-08 14:05:54,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2025-02-08 14:05:54,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2025-02-08 14:05:54,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2025-02-08 14:05:54,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2025-02-08 14:05:54,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2025-02-08 14:05:54,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2025-02-08 14:05:54,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:05:54,593 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 14:05:54,594 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 14:05:54,594 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-08 14:05:54,619 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:05:54,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 149 transitions, 325 flow [2025-02-08 14:05:54,637 INFO L124 PetriNetUnfolderBase]: 34/266 cut-off events. [2025-02-08 14:05:54,638 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-02-08 14:05:54,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 266 events. 34/266 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1157 event pairs, 1 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2025-02-08 14:05:54,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 149 transitions, 325 flow [2025-02-08 14:05:54,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 149 transitions, 325 flow [2025-02-08 14:05:54,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:05:54,641 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;@3ca34b98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:05:54,641 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-02-08 14:05:54,642 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:05:54,643 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-02-08 14:05:54,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:05:54,643 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:54,643 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:05:54,643 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:05:54,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:54,643 INFO L85 PathProgramCache]: Analyzing trace with hash 598738578, now seen corresponding path program 1 times [2025-02-08 14:05:54,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:54,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920237821] [2025-02-08 14:05:54,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:54,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:54,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:05:54,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:05:54,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:54,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:54,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:05:54,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:54,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920237821] [2025-02-08 14:05:54,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920237821] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:54,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:54,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:05:54,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820050587] [2025-02-08 14:05:54,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:54,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:05:54,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:54,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:05:54,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:05:54,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 149 [2025-02-08 14:05:54,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 149 transitions, 325 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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) [2025-02-08 14:05:54,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:54,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 149 [2025-02-08 14:05:54,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand