./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/triangular-2.i --full-output --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/triangular-2.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/triangular-2.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/triangular-2.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-13 21:07:18,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 21:07:18,980 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 21:07:18,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 21:07:18,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 21:07:19,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 21:07:19,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 21:07:19,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 21:07:19,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 21:07:19,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 21:07:19,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 21:07:19,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 21:07:19,032 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 21:07:19,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 21:07:19,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 21:07:19,035 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 21:07:19,035 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 21:07:19,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 21:07:19,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 21:07:19,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 21:07:19,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 21:07:19,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 21:07:19,038 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 21:07:19,039 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 21:07:19,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 21:07:19,039 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 21:07:19,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 21:07:19,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 21:07:19,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 21:07:19,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 21:07:19,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 21:07:19,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 21:07:19,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 21:07:19,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 21:07:19,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 21:07:19,043 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 21:07:19,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 21:07:19,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 21:07:19,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 21:07:19,044 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 21:07:19,044 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 21:07:19,045 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 21:07:19,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-13 21:07:19,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 21:07:19,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 21:07:19,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 21:07:19,321 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 21:07:19,322 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 21:07:19,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/triangular-2.yml/witness.yml [2024-08-13 21:07:19,453 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 21:07:19,453 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 21:07:19,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/triangular-2.i [2024-08-13 21:07:20,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 21:07:21,169 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 21:07:21,170 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i [2024-08-13 21:07:21,182 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ea849ff4a/e9b2acd21fe944288bf11239db326863/FLAGa5ed554d1 [2024-08-13 21:07:21,202 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ea849ff4a/e9b2acd21fe944288bf11239db326863 [2024-08-13 21:07:21,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 21:07:21,204 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 21:07:21,206 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 21:07:21,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 21:07:21,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 21:07:21,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 09:07:19" (1/2) ... [2024-08-13 21:07:21,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa667d5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 09:07:21, skipping insertion in model container [2024-08-13 21:07:21,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 09:07:19" (1/2) ... [2024-08-13 21:07:21,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78c9d64f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 09:07:21, skipping insertion in model container [2024-08-13 21:07:21,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 09:07:21" (2/2) ... [2024-08-13 21:07:21,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa667d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21, skipping insertion in model container [2024-08-13 21:07:21,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 09:07:21" (2/2) ... [2024-08-13 21:07:21,217 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-13 21:07:21,221 INFO L92 edCorrectnessWitness]: Witness did not contain any usable entries. [2024-08-13 21:07:21,267 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 21:07:21,620 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i[30952,30965] [2024-08-13 21:07:21,624 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 21:07:21,640 INFO L202 MainTranslator]: Completed pre-run [2024-08-13 21:07:21,714 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i[30952,30965] [2024-08-13 21:07:21,716 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 21:07:21,756 INFO L206 MainTranslator]: Completed translation [2024-08-13 21:07:21,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21 WrapperNode [2024-08-13 21:07:21,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 21:07:21,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-13 21:07:21,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-13 21:07:21,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-13 21:07:21,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,811 INFO L138 Inliner]: procedures = 168, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-08-13 21:07:21,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-13 21:07:21,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-13 21:07:21,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-13 21:07:21,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-13 21:07:21,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-13 21:07:21,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-13 21:07:21,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-13 21:07:21,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-13 21:07:21,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (1/1) ... [2024-08-13 21:07:21,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 21:07:21,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:07:21,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-13 21:07:21,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-13 21:07:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-08-13 21:07:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-08-13 21:07:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-08-13 21:07:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-08-13 21:07:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-13 21:07:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-13 21:07:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-13 21:07:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-13 21:07:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-13 21:07:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-13 21:07:21,905 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-13 21:07:22,030 INFO L244 CfgBuilder]: Building ICFG [2024-08-13 21:07:22,032 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-13 21:07:22,163 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-13 21:07:22,163 INFO L293 CfgBuilder]: Performing block encoding [2024-08-13 21:07:22,272 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-13 21:07:22,273 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-08-13 21:07:22,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 09:07:22 BoogieIcfgContainer [2024-08-13 21:07:22,273 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-13 21:07:22,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-13 21:07:22,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-13 21:07:22,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-13 21:07:22,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 09:07:19" (1/4) ... [2024-08-13 21:07:22,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d1c4e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 09:07:22, skipping insertion in model container [2024-08-13 21:07:22,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 09:07:21" (2/4) ... [2024-08-13 21:07:22,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d1c4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 09:07:22, skipping insertion in model container [2024-08-13 21:07:22,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:07:21" (3/4) ... [2024-08-13 21:07:22,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d1c4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 09:07:22, skipping insertion in model container [2024-08-13 21:07:22,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 09:07:22" (4/4) ... [2024-08-13 21:07:22,311 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-2.i [2024-08-13 21:07:22,332 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-13 21:07:22,332 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-13 21:07:22,333 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-13 21:07:22,391 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-13 21:07:22,436 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 21:07:22,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 21:07:22,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:07:22,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-13 21:07:22,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-13 21:07:22,485 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 21:07:22,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 21:07:22,506 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@7f7368d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 21:07:22,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-13 21:07:22,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 21:07:22,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:07:22,617 INFO L85 PathProgramCache]: Analyzing trace with hash 651553703, now seen corresponding path program 1 times [2024-08-13 21:07:22,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:07:22,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511748205] [2024-08-13 21:07:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:07:22,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:07:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:07:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:07:23,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:07:23,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511748205] [2024-08-13 21:07:23,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511748205] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 21:07:23,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 21:07:23,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-13 21:07:23,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325576337] [2024-08-13 21:07:23,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 21:07:23,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-13 21:07:23,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:07:23,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-13 21:07:23,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-13 21:07:23,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:07:23,070 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:07:23,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-08-13 21:07:23,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:07:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:07:23,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-13 21:07:23,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 21:07:23,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:07:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 77251458, now seen corresponding path program 1 times [2024-08-13 21:07:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:07:23,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167414984] [2024-08-13 21:07:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:07:23,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:07:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:07:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:07:23,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:07:23,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167414984] [2024-08-13 21:07:23,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167414984] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 21:07:23,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 21:07:23,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-13 21:07:23,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988231449] [2024-08-13 21:07:23,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 21:07:23,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-13 21:07:23,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:07:23,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-13 21:07:23,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-08-13 21:07:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:07:23,471 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:07:23,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2024-08-13 21:07:23,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:07:23,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:07:23,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:07:23,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 21:07:23,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-13 21:07:23,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 21:07:23,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:07:23,651 INFO L85 PathProgramCache]: Analyzing trace with hash 471272221, now seen corresponding path program 2 times [2024-08-13 21:07:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:07:23,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519759563] [2024-08-13 21:07:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:07:23,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:07:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:07:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:07:23,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:07:23,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519759563] [2024-08-13 21:07:23,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519759563] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 21:07:23,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985597655] [2024-08-13 21:07:23,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-13 21:07:23,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:07:23,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:07:23,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 21:07:23,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-13 21:07:24,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-13 21:07:24,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 21:07:24,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-13 21:07:24,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 21:07:24,203 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:07:24,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 21:07:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:07:24,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985597655] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 21:07:24,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 21:07:24,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-08-13 21:07:24,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255430906] [2024-08-13 21:07:24,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 21:07:24,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-13 21:07:24,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:07:24,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-13 21:07:24,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-08-13 21:07:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:07:24,438 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:07:24,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 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) [2024-08-13 21:07:24,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:07:24,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 21:07:24,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:07:24,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:07:24,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 21:07:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 21:07:24,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-13 21:07:24,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-08-13 21:07:24,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 21:07:24,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:07:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2110283886, now seen corresponding path program 3 times [2024-08-13 21:07:24,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:07:24,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368998379] [2024-08-13 21:07:24,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:07:24,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:07:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 21:07:24,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-13 21:07:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 21:07:25,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-13 21:07:25,028 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-13 21:07:25,029 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-08-13 21:07:25,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-08-13 21:07:25,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-08-13 21:07:25,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-13 21:07:25,038 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2024-08-13 21:07:25,044 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-13 21:07:25,044 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-13 21:07:25,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 09:07:25 BasicIcfg [2024-08-13 21:07:25,127 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-13 21:07:25,131 INFO L158 Benchmark]: Toolchain (without parser) took 3926.18ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 106.0MB in the beginning and 194.0MB in the end (delta: -88.0MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. [2024-08-13 21:07:25,131 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 21:07:25,132 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 165.7MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 21:07:25,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.83ms. Allocated memory is still 165.7MB. Free memory was 105.5MB in the beginning and 83.7MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-08-13 21:07:25,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.69ms. Allocated memory is still 165.7MB. Free memory was 83.7MB in the beginning and 82.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 21:07:25,133 INFO L158 Benchmark]: Boogie Preprocessor took 24.41ms. Allocated memory is still 165.7MB. Free memory was 82.1MB in the beginning and 80.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-13 21:07:25,133 INFO L158 Benchmark]: RCFGBuilder took 436.34ms. Allocated memory is still 165.7MB. Free memory was 80.6MB in the beginning and 130.2MB in the end (delta: -49.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-08-13 21:07:25,133 INFO L158 Benchmark]: TraceAbstraction took 2828.82ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 129.3MB in the beginning and 194.0MB in the end (delta: -64.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2024-08-13 21:07:25,139 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 165.7MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.83ms. Allocated memory is still 165.7MB. Free memory was 105.5MB in the beginning and 83.7MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.69ms. Allocated memory is still 165.7MB. Free memory was 83.7MB in the beginning and 82.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.41ms. Allocated memory is still 165.7MB. Free memory was 82.1MB in the beginning and 80.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 436.34ms. Allocated memory is still 165.7MB. Free memory was 80.6MB in the beginning and 130.2MB in the end (delta: -49.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2828.82ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 129.3MB in the beginning and 194.0MB in the end (delta: -64.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 857, independent: 726, independent conditional: 516, independent unconditional: 210, dependent: 131, dependent conditional: 125, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 735, independent: 726, independent conditional: 516, independent unconditional: 210, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 735, independent: 726, independent conditional: 516, independent unconditional: 210, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 743, independent: 726, independent conditional: 5, independent unconditional: 721, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 743, independent: 726, independent conditional: 5, independent unconditional: 721, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 743, independent: 726, independent conditional: 5, independent unconditional: 721, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 214, independent: 205, independent conditional: 5, independent unconditional: 200, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 214, independent: 199, independent conditional: 0, independent unconditional: 199, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, independent: 46, independent conditional: 13, independent unconditional: 32, dependent: 38, dependent conditional: 13, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 743, independent: 521, independent conditional: 0, independent unconditional: 521, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 214, unknown conditional: 8, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 205, Positive conditional cache size: 5, Positive unconditional cache size: 200, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 122 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 16, Number of trivial persistent sets: 7, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 216, independent: 210, independent conditional: 0, independent unconditional: 210, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 857, independent: 726, independent conditional: 516, independent unconditional: 210, dependent: 131, dependent conditional: 125, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 735, independent: 726, independent conditional: 516, independent unconditional: 210, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 735, independent: 726, independent conditional: 516, independent unconditional: 210, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 743, independent: 726, independent conditional: 5, independent unconditional: 721, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 743, independent: 726, independent conditional: 5, independent unconditional: 721, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 743, independent: 726, independent conditional: 5, independent unconditional: 721, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 214, independent: 205, independent conditional: 5, independent unconditional: 200, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 214, independent: 199, independent conditional: 0, independent unconditional: 199, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, independent: 46, independent conditional: 13, independent unconditional: 32, dependent: 38, dependent conditional: 13, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 743, independent: 521, independent conditional: 0, independent unconditional: 521, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 214, unknown conditional: 8, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 205, Positive conditional cache size: 5, Positive unconditional cache size: 200, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 122 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; [L712] 0 pthread_t id1, id2; [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, argc=51, i=3, id1=-2, j=6] [L696] 1 int k = 0; VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, argc=51, i=3, id1=-2, id2=-1, j=6, k=0] [L704] 2 int k = 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L716] 0 int condI = i >= (2*5 +6); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, i=3, id1=-2, id2=-1, j=6, k=0, k=0] [L696] COND TRUE 1 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=0] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L696] COND TRUE 1 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L704] COND TRUE 2 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=2] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=2] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L696] COND TRUE 1 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=4] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L719] 0 int condJ = j >= (2*5 +6); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=15, id1=-2, id2=-1, j=16, k=5, k=5] [L721] COND TRUE 0 condI || condJ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=15, id1=-2, id2=-1, j=16, k=5, k=5] [L722] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=15, id1=-2, id2=-1, j=16, k=5, k=5] - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 614 SizeOfPredicates, 6 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-13 21:07:25,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-08-13 21:07:25,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE