./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d 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_longer-1.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 f66a662852389d8ac1f64241746e843d67de7f5d7507051fb5c8e68404b785cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:35:03,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:35:03,485 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:35:03,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:35:03,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:35:03,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:35:03,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:35:03,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:35:03,533 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:35:03,534 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:35:03,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:35:03,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:35:03,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:35:03,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:35:03,536 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:35:03,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:35:03,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:35:03,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:35:03,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:35:03,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:35:03,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:35:03,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:35:03,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:35:03,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:35:03,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:35:03,543 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:35:03,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:35:03,544 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:35:03,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:35:03,545 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:35:03,545 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:35:03,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:35:03,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:35:03,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:35:03,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:35:03,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:35:03,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:35:03,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:35:03,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:35:03,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:35:03,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:35:03,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:35:03,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:35:03,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:35:03,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f66a662852389d8ac1f64241746e843d67de7f5d7507051fb5c8e68404b785cd [2024-11-17 07:35:03,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:35:03,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:35:03,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:35:03,822 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:35:03,822 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:35:03,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i [2024-11-17 07:35:05,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:35:05,519 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:35:05,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i [2024-11-17 07:35:05,535 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b536c64/311cb391729d4eb4b59ba5e3eddebc66/FLAG5ce63f278 [2024-11-17 07:35:05,849 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b536c64/311cb391729d4eb4b59ba5e3eddebc66 [2024-11-17 07:35:05,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:35:05,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:35:05,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:35:05,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:35:05,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:35:05,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:35:05" (1/1) ... [2024-11-17 07:35:05,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23648414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:05, skipping insertion in model container [2024-11-17 07:35:05,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:35:05" (1/1) ... [2024-11-17 07:35:05,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:35:06,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:35:06,350 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:35:06,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:35:06,510 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:35:06,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06 WrapperNode [2024-11-17 07:35:06,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:35:06,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:35:06,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:35:06,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:35:06,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,633 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 837 [2024-11-17 07:35:06,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:35:06,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:35:06,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:35:06,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:35:06,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,694 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]. [2024-11-17 07:35:06,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,724 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:35:06,748 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:35:06,749 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:35:06,749 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:35:06,749 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (1/1) ... [2024-11-17 07:35:06,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:35:06,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:35:06,783 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) [2024-11-17 07:35:06,786 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 [2024-11-17 07:35:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:35:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:35:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:35:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:35:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-17 07:35:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-17 07:35:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:35:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:35:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:35:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:35:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 07:35:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:35:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:35:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:35:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:35:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:35:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:35:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:35:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 07:35:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:35:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:35:06,840 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:35:07,000 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:35:07,003 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:35:07,891 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:35:07,895 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:35:26,828 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:35:26,831 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:35:26,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:35:26 BoogieIcfgContainer [2024-11-17 07:35:26,832 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:35:26,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:35:26,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:35:26,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:35:26,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:35:05" (1/3) ... [2024-11-17 07:35:26,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39eae969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:35:26, skipping insertion in model container [2024-11-17 07:35:26,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:35:06" (2/3) ... [2024-11-17 07:35:26,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39eae969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:35:26, skipping insertion in model container [2024-11-17 07:35:26,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:35:26" (3/3) ... [2024-11-17 07:35:26,841 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-1.i [2024-11-17 07:35:26,858 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:35:26,859 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-17 07:35:26,859 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:35:27,078 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 07:35:27,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 63 transitions, 130 flow [2024-11-17 07:35:27,238 INFO L124 PetriNetUnfolderBase]: 10/68 cut-off events. [2024-11-17 07:35:27,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:35:27,243 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. [2024-11-17 07:35:27,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 63 transitions, 130 flow [2024-11-17 07:35:27,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 63 transitions, 130 flow [2024-11-17 07:35:27,260 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:35:27,268 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;@55ad99b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:35:27,269 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-17 07:35:27,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:35:27,336 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-17 07:35:27,336 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:35:27,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:35:27,338 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:35:27,338 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:35:27,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:35:27,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1679642765, now seen corresponding path program 1 times [2024-11-17 07:35:27,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:35:27,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032200999] [2024-11-17 07:35:27,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:35:27,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms