./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:41:39,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:41:39,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:41:39,308 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:41:39,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:41:39,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:41:39,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:41:39,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:41:39,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:41:39,338 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:41:39,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:41:39,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:41:39,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:41:39,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:41:39,340 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:41:39,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:41:39,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:41:39,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:41:39,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:41:39,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:41:39,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:41:39,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:41:39,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:41:39,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:41:39,343 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:41:39,343 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:41:39,344 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:41:39,344 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:41:39,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:41:39,344 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:41:39,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:41:39,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:41:39,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:41:39,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:41:39,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:41:39,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:41:39,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:41:39,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:41:39,347 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:41:39,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:41:39,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:41:39,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:41:39,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:41:39,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:41:39,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f66a662852389d8ac1f64241746e843d67de7f5d7507051fb5c8e68404b785cd [2024-11-23 01:41:39,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:41:39,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:41:39,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:41:39,621 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:41:39,622 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:41:39,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i [2024-11-23 01:41:40,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:41:41,101 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:41:41,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i [2024-11-23 01:41:41,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b733b0843/24b06146aaab4182931471eabdce832a/FLAGc9e8937a3 [2024-11-23 01:41:41,135 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b733b0843/24b06146aaab4182931471eabdce832a [2024-11-23 01:41:41,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:41:41,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:41:41,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:41:41,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:41:41,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:41:41,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608afa59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41, skipping insertion in model container [2024-11-23 01:41:41,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:41:41,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:41:41,502 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:41:41,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:41:41,650 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:41:41,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41 WrapperNode [2024-11-23 01:41:41,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:41:41,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:41:41,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:41:41,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:41:41,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,699 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 840 [2024-11-23 01:41:41,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:41:41,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:41:41,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:41:41,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:41:41,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,762 INFO L175 MemorySlicer]: Split 24 memory accesses to 4 slices as follows [2, 4, 6, 12]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 1, 1, 2]. The 9 writes are split as follows [0, 2, 2, 5]. [2024-11-23 01:41:41,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,773 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:41:41,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:41:41,794 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:41:41,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:41:41,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (1/1) ... [2024-11-23 01:41:41,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:41:41,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:41:41,831 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) [2024-11-23 01:41:41,841 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 [2024-11-23 01:41:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 01:41:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 01:41:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 01:41:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 01:41:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-23 01:41:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-23 01:41:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 01:41:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 01:41:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 01:41:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 01:41:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 01:41:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:41:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 01:41:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 01:41:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:41:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 01:41:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 01:41:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 01:41:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 01:41:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:41:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:41:41,883 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 01:41:42,025 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:41:42,026 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:41:42,651 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:41:42,651 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:41:54,873 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:41:54,873 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-23 01:41:54,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:54 BoogieIcfgContainer [2024-11-23 01:41:54,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:41:54,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:41:54,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:41:54,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:41:54,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:41:41" (1/3) ... [2024-11-23 01:41:54,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0eff8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:41:54, skipping insertion in model container [2024-11-23 01:41:54,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:41" (2/3) ... [2024-11-23 01:41:54,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0eff8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:41:54, skipping insertion in model container [2024-11-23 01:41:54,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:54" (3/3) ... [2024-11-23 01:41:54,882 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-1.i [2024-11-23 01:41:54,897 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:41:54,897 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-23 01:41:54,897 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:41:55,033 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 01:41:55,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 54 transitions, 112 flow [2024-11-23 01:41:55,124 INFO L124 PetriNetUnfolderBase]: 6/56 cut-off events. [2024-11-23 01:41:55,125 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:41:55,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 6/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 51. Up to 3 conditions per place. [2024-11-23 01:41:55,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 54 transitions, 112 flow [2024-11-23 01:41:55,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 54 transitions, 112 flow [2024-11-23 01:41:55,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:41:55,143 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;@601c47b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:41:55,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-23 01:41:55,175 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:41:55,175 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-23 01:41:55,175 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:41:55,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:41:55,176 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-23 01:41:55,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-23 01:41:55,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:41:55,181 INFO L85 PathProgramCache]: Analyzing trace with hash 717717233, now seen corresponding path program 1 times [2024-11-23 01:41:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:41:55,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329807248] [2024-11-23 01:41:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:41:55,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms