./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-ext/26_stack_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/26_stack_cas.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:05:28,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:05:28,487 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:05:28,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:05:28,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:05:28,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:05:28,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:05:28,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:05:28,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:05:28,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:05:28,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:05:28,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:05:28,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:05:28,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:05:28,524 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:05:28,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:05:28,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:05:28,525 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:05:28,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:05:28,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:05:28,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:05:28,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:05:28,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:05:28,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:05:28,527 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:05:28,527 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:05:28,527 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:05:28,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:05:28,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:05:28,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:05:28,528 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:05:28,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:05:28,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:05:28,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:05:28,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:05:28,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:05:28,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:05:28,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:05:28,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:05:28,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:05:28,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:05:28,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:05:28,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:05:28,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:05:28,531 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 [2024-11-10 22:05:28,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:05:28,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:05:28,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:05:28,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:05:28,793 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:05:28,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-10 22:05:30,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:05:30,377 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:05:30,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-11-10 22:05:30,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea5a1c78/266de855c4d44bbf9911847097044cea/FLAGb3ac77432 [2024-11-10 22:05:30,410 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dea5a1c78/266de855c4d44bbf9911847097044cea [2024-11-10 22:05:30,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:05:30,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:05:30,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:05:30,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:05:30,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:05:30,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:30,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7edddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30, skipping insertion in model container [2024-11-10 22:05:30,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:30,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:05:30,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:05:30,885 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:05:30,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:05:30,988 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:05:30,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30 WrapperNode [2024-11-10 22:05:30,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:05:30,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:05:30,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:05:30,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:05:30,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,045 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 261 [2024-11-10 22:05:31,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:05:31,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:05:31,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:05:31,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:05:31,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,067 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,092 INFO L175 MemorySlicer]: Split 24 memory accesses to 4 slices as follows [2, 4, 12, 6]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 1, 2, 1]. The 9 writes are split as follows [0, 2, 5, 2]. [2024-11-10 22:05:31,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,105 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:05:31,124 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:05:31,124 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:05:31,124 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:05:31,125 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (1/1) ... [2024-11-10 22:05:31,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:05:31,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:05:31,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 22:05:31,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 22:05:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:05:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:05:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:05:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 22:05:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-10 22:05:31,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-10 22:05:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:05:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:05:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:05:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 22:05:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 22:05:31,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:05:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:05:31,212 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:05:31,330 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:05:31,333 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:05:31,641 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:05:31,642 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:05:32,079 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:05:32,080 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:05:32,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:05:32 BoogieIcfgContainer [2024-11-10 22:05:32,080 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:05:32,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:05:32,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:05:32,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:05:32,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:05:30" (1/3) ... [2024-11-10 22:05:32,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7117000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:05:32, skipping insertion in model container [2024-11-10 22:05:32,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:30" (2/3) ... [2024-11-10 22:05:32,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7117000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:05:32, skipping insertion in model container [2024-11-10 22:05:32,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:05:32" (3/3) ... [2024-11-10 22:05:32,086 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas.i [2024-11-10 22:05:32,102 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:05:32,103 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-10 22:05:32,103 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:05:32,189 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:05:32,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 63 transitions, 130 flow [2024-11-10 22:05:32,238 INFO L124 PetriNetUnfolderBase]: 10/68 cut-off events. [2024-11-10 22:05:32,239 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:05:32,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 10/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2024-11-10 22:05:32,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 63 transitions, 130 flow [2024-11-10 22:05:32,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 63 transitions, 130 flow [2024-11-10 22:05:32,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:05:32,256 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;@658399b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:05:32,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-10 22:05:32,262 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:05:32,263 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-10 22:05:32,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:05:32,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:32,264 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:05:32,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:05:32,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:32,268 INFO L85 PathProgramCache]: Analyzing trace with hash 725118835, now seen corresponding path program 1 times [2024-11-10 22:05:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:32,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848403225] [2024-11-10 22:05:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:32,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:05:32,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:05:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:05:32,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:05:32,822 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:05:32,823 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-10 22:05:32,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-10 22:05:32,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-10 22:05:32,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-10 22:05:32,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-10 22:05:32,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-10 22:05:32,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-10 22:05:32,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-10 22:05:32,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-10 22:05:32,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-10 22:05:32,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-10 22:05:32,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-10 22:05:32,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-10 22:05:32,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-10 22:05:32,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-10 22:05:32,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-10 22:05:32,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-10 22:05:32,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-10 22:05:32,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-10 22:05:32,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-10 22:05:32,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-10 22:05:32,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:05:32,830 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-10 22:05:32,834 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:05:32,834 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 22:05:32,883 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:05:32,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 118 transitions, 246 flow [2024-11-10 22:05:32,919 INFO L124 PetriNetUnfolderBase]: 19/129 cut-off events. [2024-11-10 22:05:32,920 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:05:32,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 129 events. 19/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 306 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2024-11-10 22:05:32,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 118 transitions, 246 flow [2024-11-10 22:05:32,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 118 transitions, 246 flow [2024-11-10 22:05:32,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:05:32,927 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;@658399b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:05:32,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-10 22:05:32,934 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:05:32,935 INFO L124 PetriNetUnfolderBase]: 5/37 cut-off events. [2024-11-10 22:05:32,935 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:05:32,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:32,935 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-10 22:05:32,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-10 22:05:32,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1863290100, now seen corresponding path program 1 times [2024-11-10 22:05:32,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:32,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176724804] [2024-11-10 22:05:32,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:32,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:05:33,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:05:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:05:33,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:05:33,216 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:05:33,216 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-10 22:05:33,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2024-11-10 22:05:33,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2024-11-10 22:05:33,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2024-11-10 22:05:33,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2024-11-10 22:05:33,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2024-11-10 22:05:33,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2024-11-10 22:05:33,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2024-11-10 22:05:33,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2024-11-10 22:05:33,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2024-11-10 22:05:33,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2024-11-10 22:05:33,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2024-11-10 22:05:33,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2024-11-10 22:05:33,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2024-11-10 22:05:33,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2024-11-10 22:05:33,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2024-11-10 22:05:33,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2024-11-10 22:05:33,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2024-11-10 22:05:33,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2024-11-10 22:05:33,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2024-11-10 22:05:33,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2024-11-10 22:05:33,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining) [2024-11-10 22:05:33,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining) [2024-11-10 22:05:33,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2024-11-10 22:05:33,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2024-11-10 22:05:33,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2024-11-10 22:05:33,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2024-11-10 22:05:33,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2024-11-10 22:05:33,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2024-11-10 22:05:33,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2024-11-10 22:05:33,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2024-11-10 22:05:33,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:05:33,222 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-10 22:05:33,222 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:05:33,222 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 22:05:33,275 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:05:33,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 173 transitions, 364 flow [2024-11-10 22:05:33,322 INFO L124 PetriNetUnfolderBase]: 28/190 cut-off events. [2024-11-10 22:05:33,323 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 22:05:33,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 190 events. 28/190 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 606 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 168. Up to 8 conditions per place. [2024-11-10 22:05:33,330 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 173 transitions, 364 flow [2024-11-10 22:05:33,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 173 transitions, 364 flow [2024-11-10 22:05:33,334 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:05:33,335 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;@658399b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:05:33,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-10 22:05:33,351 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:05:33,351 INFO L124 PetriNetUnfolderBase]: 5/45 cut-off events. [2024-11-10 22:05:33,352 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 22:05:33,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:33,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:33,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-10 22:05:33,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:33,354 INFO L85 PathProgramCache]: Analyzing trace with hash 371526571, now seen corresponding path program 1 times [2024-11-10 22:05:33,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:33,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740888089] [2024-11-10 22:05:33,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:33,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:33,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:33,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740888089] [2024-11-10 22:05:33,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740888089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:33,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:33,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:05:33,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149287777] [2024-11-10 22:05:33,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:33,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:05:33,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:33,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:05:33,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:05:33,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 173 [2024-11-10 22:05:33,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 173 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2024-11-10 22:05:33,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:33,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 173 [2024-11-10 22:05:33,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:52,077 INFO L124 PetriNetUnfolderBase]: 162522/254725 cut-off events. [2024-11-10 22:05:52,077 INFO L125 PetriNetUnfolderBase]: For 4598/4598 co-relation queries the response was YES. [2024-11-10 22:05:52,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472350 conditions, 254725 events. 162522/254725 cut-off events. For 4598/4598 co-relation queries the response was YES. Maximal size of possible extension queue 7502. Compared 2397082 event pairs, 54856 based on Foata normal form. 41062/268235 useless extension candidates. Maximal degree in co-relation 294002. Up to 206622 conditions per place. [2024-11-10 22:05:54,083 INFO L140 encePairwiseOnDemand]: 134/173 looper letters, 117 selfloop transitions, 4 changer transitions 0/183 dead transitions. [2024-11-10 22:05:54,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 183 transitions, 638 flow [2024-11-10 22:05:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:05:54,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:05:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2024-11-10 22:05:54,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6917148362235067 [2024-11-10 22:05:54,096 INFO L175 Difference]: Start difference. First operand has 155 places, 173 transitions, 364 flow. Second operand 3 states and 359 transitions. [2024-11-10 22:05:54,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 183 transitions, 638 flow [2024-11-10 22:05:54,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 183 transitions, 634 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-10 22:05:54,109 INFO L231 Difference]: Finished difference. Result has 150 places, 155 transitions, 386 flow [2024-11-10 22:05:54,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=150, PETRI_TRANSITIONS=155} [2024-11-10 22:05:54,113 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -5 predicate places. [2024-11-10 22:05:54,113 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 155 transitions, 386 flow [2024-11-10 22:05:54,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2024-11-10 22:05:54,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:54,114 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2024-11-10 22:05:54,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:05:54,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-10 22:05:54,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:54,115 INFO L85 PathProgramCache]: Analyzing trace with hash -470537502, now seen corresponding path program 1 times [2024-11-10 22:05:54,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:54,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243745336] [2024-11-10 22:05:54,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:54,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:05:54,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:05:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:05:54,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:05:54,457 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:05:54,458 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-10 22:05:54,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2024-11-10 22:05:54,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2024-11-10 22:05:54,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2024-11-10 22:05:54,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2024-11-10 22:05:54,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2024-11-10 22:05:54,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2024-11-10 22:05:54,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2024-11-10 22:05:54,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2024-11-10 22:05:54,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2024-11-10 22:05:54,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2024-11-10 22:05:54,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2024-11-10 22:05:54,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2024-11-10 22:05:54,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2024-11-10 22:05:54,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2024-11-10 22:05:54,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2024-11-10 22:05:54,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2024-11-10 22:05:54,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2024-11-10 22:05:54,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2024-11-10 22:05:54,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2024-11-10 22:05:54,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2024-11-10 22:05:54,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2024-11-10 22:05:54,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 41 remaining) [2024-11-10 22:05:54,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 41 remaining) [2024-11-10 22:05:54,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 41 remaining) [2024-11-10 22:05:54,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2024-11-10 22:05:54,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2024-11-10 22:05:54,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2024-11-10 22:05:54,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2024-11-10 22:05:54,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2024-11-10 22:05:54,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2024-11-10 22:05:54,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2024-11-10 22:05:54,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2024-11-10 22:05:54,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2024-11-10 22:05:54,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2024-11-10 22:05:54,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2024-11-10 22:05:54,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2024-11-10 22:05:54,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2024-11-10 22:05:54,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2024-11-10 22:05:54,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2024-11-10 22:05:54,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2024-11-10 22:05:54,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:05:54,465 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 22:05:54,466 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:05:54,466 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-10 22:05:54,526 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:05:54,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 228 transitions, 484 flow [2024-11-10 22:05:54,584 INFO L124 PetriNetUnfolderBase]: 37/251 cut-off events. [2024-11-10 22:05:54,585 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-10 22:05:54,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 251 events. 37/251 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 931 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 222. Up to 10 conditions per place. [2024-11-10 22:05:54,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 228 transitions, 484 flow [2024-11-10 22:05:54,595 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 228 transitions, 484 flow [2024-11-10 22:05:54,596 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:05:54,597 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;@658399b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:05:54,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-10 22:05:54,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:05:54,606 INFO L124 PetriNetUnfolderBase]: 5/45 cut-off events. [2024-11-10 22:05:54,607 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 22:05:54,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:54,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:54,608 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-11-10 22:05:54,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1682626143, now seen corresponding path program 1 times [2024-11-10 22:05:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:54,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205293851] [2024-11-10 22:05:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:54,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:54,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:54,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205293851] [2024-11-10 22:05:54,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205293851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:54,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:54,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:05:54,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195373063] [2024-11-10 22:05:54,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:54,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:05:54,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:54,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:05:54,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:05:55,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 228 [2024-11-10 22:05:55,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 228 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-10 22:05:55,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:55,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 228 [2024-11-10 22:05:55,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand