./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/03_incdec.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/03_incdec.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f 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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-ext/03_incdec.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/03_incdec.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 14:46:35,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:46:35,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:46:35,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:46:35,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:46:35,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:46:35,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:46:35,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:46:35,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:46:35,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:46:35,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:46:35,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:46:35,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:46:35,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:46:35,230 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:46:35,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:46:35,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:46:35,230 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:46:35,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:46:35,231 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:46:35,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:46:35,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:46:35,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:46:35,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:46:35,232 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:46:35,232 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:46:35,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:46:35,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:46:35,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:46:35,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:46:35,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:46:35,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:46:35,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:46:35,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:46:35,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:46:35,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:46:35,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:46:35,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:46:35,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:46:35,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:46:35,236 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:46:35,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:46:35,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:46:35,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:46:35,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:46:35,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:46:35,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:46:35,520 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:46:35,520 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:46:35,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/03_incdec.i [2024-01-27 14:46:36,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:46:36,927 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:46:36,927 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i [2024-01-27 14:46:36,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e08b42a42/6dfb65b39e5c4c87b1f511a403369458/FLAGfa7320e7a [2024-01-27 14:46:36,949 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e08b42a42/6dfb65b39e5c4c87b1f511a403369458 [2024-01-27 14:46:36,951 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:46:36,952 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:46:36,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/03_incdec.yml/witness.yml [2024-01-27 14:46:37,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:46:37,040 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:46:37,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:46:37,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:46:37,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:46:37,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:46:36" (1/2) ... [2024-01-27 14:46:37,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44925e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:37, skipping insertion in model container [2024-01-27 14:46:37,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:46:36" (1/2) ... [2024-01-27 14:46:37,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@356fdb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:37, skipping insertion in model container [2024-01-27 14:46:37,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:37" (2/2) ... [2024-01-27 14:46:37,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44925e2a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37, skipping insertion in model container [2024-01-27 14:46:37,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:37" (2/2) ... [2024-01-27 14:46:37,051 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:46:37,081 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:46:37,083 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] inc_v == 0U [2024-01-27 14:46:37,083 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 0U == inc_v [2024-01-27 14:46:37,083 INFO L98 nessWitnessExtractor]: Location invariant after [L695-L699] (unsigned int )m == 0U [2024-01-27 14:46:37,083 INFO L98 nessWitnessExtractor]: Location invariant after [L690-L694] (unsigned int )m == 1U [2024-01-27 14:46:37,083 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L714] inc_v == 0U [2024-01-27 14:46:37,084 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L714] 0U == inc_v [2024-01-27 14:46:37,084 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] 0U == inc_v [2024-01-27 14:46:37,084 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] inc_v == 0U [2024-01-27 14:46:37,085 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] 0U == inc_v [2024-01-27 14:46:37,085 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] inc_v == 0U [2024-01-27 14:46:37,085 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] (unsigned long )arg == 0UL [2024-01-27 14:46:37,085 INFO L98 nessWitnessExtractor]: Location invariant before [L731-L731] (unsigned long )arg == 0UL [2024-01-27 14:46:37,085 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L733] r != 0 [2024-01-27 14:46:37,085 INFO L98 nessWitnessExtractor]: Location invariant after [L732-L733] (unsigned long )arg == 0UL [2024-01-27 14:46:37,085 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L733] (unsigned long )arg == 0UL [2024-01-27 14:46:37,086 INFO L98 nessWitnessExtractor]: Location invariant after [L732-L733] r == 0 [2024-01-27 14:46:37,086 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L733] (unsigned long )arg == 0UL [2024-01-27 14:46:37,086 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] 0U == inc_v [2024-01-27 14:46:37,086 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] inc_v == 0U [2024-01-27 14:46:37,130 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:46:37,419 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i[30534,30547] [2024-01-27 14:46:37,427 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i[30928,30941] [2024-01-27 14:46:37,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:46:37,443 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:46:37,478 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_acquire() { assume_abort_if_not(m==0); m = 1; } with a witness entry [2024-01-27 14:46:37,480 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_release() { assume_abort_if_not(m==1); m = 0; } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:46:37,506 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i[30534,30547] Start Parsing Local Start Parsing Local [2024-01-27 14:46:37,514 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i[30928,30941] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:46:37,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:46:37,554 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:46:37,554 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37 WrapperNode [2024-01-27 14:46:37,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:46:37,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:46:37,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:46:37,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:46:37,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,599 INFO L138 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 150 [2024-01-27 14:46:37,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:46:37,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:46:37,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:46:37,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:46:37,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,630 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-01-27 14:46:37,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:46:37,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:46:37,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:46:37,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:46:37,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (1/1) ... [2024-01-27 14:46:37,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:46:37,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:37,676 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) [2024-01-27 14:46:37,712 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 [2024-01-27 14:46:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-27 14:46:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-27 14:46:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:46:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:46:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:46:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:46:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:46:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:46:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:46:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:46:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:46:37,733 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:46:37,847 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:46:37,848 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:46:38,041 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:46:38,041 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:46:38,135 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:46:38,136 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-27 14:46:38,136 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:46:38 BoogieIcfgContainer [2024-01-27 14:46:38,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:46:38,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:46:38,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:46:38,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:46:38,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:46:36" (1/4) ... [2024-01-27 14:46:38,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf7d8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:46:38, skipping insertion in model container [2024-01-27 14:46:38,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:37" (2/4) ... [2024-01-27 14:46:38,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf7d8a2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:46:38, skipping insertion in model container [2024-01-27 14:46:38,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:37" (3/4) ... [2024-01-27 14:46:38,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf7d8a2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:46:38, skipping insertion in model container [2024-01-27 14:46:38,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:46:38" (4/4) ... [2024-01-27 14:46:38,147 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2024-01-27 14:46:38,159 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:46:38,160 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-01-27 14:46:38,160 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:46:38,203 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:46:38,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 70 transitions, 144 flow [2024-01-27 14:46:38,257 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2024-01-27 14:46:38,258 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:38,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 5/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 171 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2024-01-27 14:46:38,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 70 transitions, 144 flow [2024-01-27 14:46:38,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 70 transitions, 144 flow [2024-01-27 14:46:38,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:46:38,286 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=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;@4f3ffedd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:46:38,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-01-27 14:46:38,289 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:46:38,290 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-27 14:46:38,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:38,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:38,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:46:38,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 14:46:38,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:38,295 INFO L85 PathProgramCache]: Analyzing trace with hash 463386977, now seen corresponding path program 1 times [2024-01-27 14:46:38,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:38,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089321151] [2024-01-27 14:46:38,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:38,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:38,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:38,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089321151] [2024-01-27 14:46:38,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089321151] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:38,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:38,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:46:38,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513500532] [2024-01-27 14:46:38,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:38,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:46:38,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:38,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:46:38,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:46:38,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 70 [2024-01-27 14:46:38,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-01-27 14:46:38,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:38,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 70 [2024-01-27 14:46:38,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:38,746 INFO L124 PetriNetUnfolderBase]: 47/215 cut-off events. [2024-01-27 14:46:38,747 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:38,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 215 events. 47/215 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 973 event pairs, 0 based on Foata normal form. 15/188 useless extension candidates. Maximal degree in co-relation 311. Up to 98 conditions per place. [2024-01-27 14:46:38,751 INFO L140 encePairwiseOnDemand]: 60/70 looper letters, 25 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2024-01-27 14:46:38,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 188 flow [2024-01-27 14:46:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:46:38,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:46:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-01-27 14:46:38,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.675 [2024-01-27 14:46:38,764 INFO L175 Difference]: Start difference. First operand has 68 places, 70 transitions, 144 flow. Second operand 4 states and 189 transitions. [2024-01-27 14:46:38,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 65 transitions, 188 flow [2024-01-27 14:46:38,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 65 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:46:38,772 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 132 flow [2024-01-27 14:46:38,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2024-01-27 14:46:38,777 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, -3 predicate places. [2024-01-27 14:46:38,777 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 132 flow [2024-01-27 14:46:38,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-01-27 14:46:38,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:38,778 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-01-27 14:46:38,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:46:38,778 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 14:46:38,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:38,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1480049946, now seen corresponding path program 1 times [2024-01-27 14:46:38,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:38,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041634827] [2024-01-27 14:46:38,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:38,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:38,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:46:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:38,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:46:38,847 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:46:38,848 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-01-27 14:46:38,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 39 remaining) [2024-01-27 14:46:38,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 39 remaining) [2024-01-27 14:46:38,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 39 remaining) [2024-01-27 14:46:38,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 39 remaining) [2024-01-27 14:46:38,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 39 remaining) [2024-01-27 14:46:38,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 39 remaining) [2024-01-27 14:46:38,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 39 remaining) [2024-01-27 14:46:38,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 39 remaining) [2024-01-27 14:46:38,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 39 remaining) [2024-01-27 14:46:38,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (28 of 39 remaining) [2024-01-27 14:46:38,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 39 remaining) [2024-01-27 14:46:38,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 39 remaining) [2024-01-27 14:46:38,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 39 remaining) [2024-01-27 14:46:38,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 39 remaining) [2024-01-27 14:46:38,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 39 remaining) [2024-01-27 14:46:38,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 39 remaining) [2024-01-27 14:46:38,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 39 remaining) [2024-01-27 14:46:38,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 39 remaining) [2024-01-27 14:46:38,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (19 of 39 remaining) [2024-01-27 14:46:38,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 39 remaining) [2024-01-27 14:46:38,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 39 remaining) [2024-01-27 14:46:38,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 39 remaining) [2024-01-27 14:46:38,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 39 remaining) [2024-01-27 14:46:38,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 39 remaining) [2024-01-27 14:46:38,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 39 remaining) [2024-01-27 14:46:38,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 39 remaining) [2024-01-27 14:46:38,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 39 remaining) [2024-01-27 14:46:38,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 39 remaining) [2024-01-27 14:46:38,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (9 of 39 remaining) [2024-01-27 14:46:38,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 39 remaining) [2024-01-27 14:46:38,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 39 remaining) [2024-01-27 14:46:38,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 39 remaining) [2024-01-27 14:46:38,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 39 remaining) [2024-01-27 14:46:38,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 39 remaining) [2024-01-27 14:46:38,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 39 remaining) [2024-01-27 14:46:38,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 39 remaining) [2024-01-27 14:46:38,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 39 remaining) [2024-01-27 14:46:38,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (0 of 39 remaining) [2024-01-27 14:46:38,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:46:38,866 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-27 14:46:38,868 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 14:46:38,868 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-27 14:46:38,921 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:46:38,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 135 transitions, 280 flow [2024-01-27 14:46:38,947 INFO L124 PetriNetUnfolderBase]: 10/140 cut-off events. [2024-01-27 14:46:38,947 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:46:38,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 140 events. 10/140 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 566 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 131. Up to 3 conditions per place. [2024-01-27 14:46:38,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 135 transitions, 280 flow [2024-01-27 14:46:38,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 280 flow [2024-01-27 14:46:38,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:46:38,958 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=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;@4f3ffedd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:46:38,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-01-27 14:46:38,960 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:46:38,961 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-27 14:46:38,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:38,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:38,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:46:38,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 55 more)] === [2024-01-27 14:46:38,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:38,962 INFO L85 PathProgramCache]: Analyzing trace with hash 592281704, now seen corresponding path program 1 times [2024-01-27 14:46:38,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:38,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501884609] [2024-01-27 14:46:38,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:38,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:39,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:39,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:39,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501884609] [2024-01-27 14:46:39,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501884609] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:39,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:39,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:46:39,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696401722] [2024-01-27 14:46:39,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:39,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:46:39,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:39,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:46:39,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:46:39,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 135 [2024-01-27 14:46:39,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-01-27 14:46:39,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:39,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 135 [2024-01-27 14:46:39,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:39,551 INFO L124 PetriNetUnfolderBase]: 2150/5215 cut-off events. [2024-01-27 14:46:39,552 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-01-27 14:46:39,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8444 conditions, 5215 events. 2150/5215 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 45868 event pairs, 1008 based on Foata normal form. 417/4719 useless extension candidates. Maximal degree in co-relation 8013. Up to 3062 conditions per place. [2024-01-27 14:46:39,582 INFO L140 encePairwiseOnDemand]: 123/135 looper letters, 65 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2024-01-27 14:46:39,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 148 transitions, 445 flow [2024-01-27 14:46:39,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:46:39,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:46:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 405 transitions. [2024-01-27 14:46:39,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-01-27 14:46:39,588 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 280 flow. Second operand 4 states and 405 transitions. [2024-01-27 14:46:39,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 148 transitions, 445 flow [2024-01-27 14:46:39,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 148 transitions, 445 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:46:39,592 INFO L231 Difference]: Finished difference. Result has 127 places, 125 transitions, 264 flow [2024-01-27 14:46:39,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=127, PETRI_TRANSITIONS=125} [2024-01-27 14:46:39,593 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-01-27 14:46:39,593 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 125 transitions, 264 flow [2024-01-27 14:46:39,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-01-27 14:46:39,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:39,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:39,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:46:39,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 55 more)] === [2024-01-27 14:46:39,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:39,595 INFO L85 PathProgramCache]: Analyzing trace with hash 939314866, now seen corresponding path program 1 times [2024-01-27 14:46:39,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:39,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607500055] [2024-01-27 14:46:39,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:39,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:39,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:46:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:39,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:46:39,637 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:46:39,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 58 remaining) [2024-01-27 14:46:39,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 58 remaining) [2024-01-27 14:46:39,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 58 remaining) [2024-01-27 14:46:39,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 58 remaining) [2024-01-27 14:46:39,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 58 remaining) [2024-01-27 14:46:39,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 58 remaining) [2024-01-27 14:46:39,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 58 remaining) [2024-01-27 14:46:39,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 58 remaining) [2024-01-27 14:46:39,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 58 remaining) [2024-01-27 14:46:39,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 58 remaining) [2024-01-27 14:46:39,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (47 of 58 remaining) [2024-01-27 14:46:39,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 58 remaining) [2024-01-27 14:46:39,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 58 remaining) [2024-01-27 14:46:39,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 58 remaining) [2024-01-27 14:46:39,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 58 remaining) [2024-01-27 14:46:39,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 58 remaining) [2024-01-27 14:46:39,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 58 remaining) [2024-01-27 14:46:39,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 58 remaining) [2024-01-27 14:46:39,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 58 remaining) [2024-01-27 14:46:39,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (38 of 58 remaining) [2024-01-27 14:46:39,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 58 remaining) [2024-01-27 14:46:39,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 58 remaining) [2024-01-27 14:46:39,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 58 remaining) [2024-01-27 14:46:39,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 58 remaining) [2024-01-27 14:46:39,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 58 remaining) [2024-01-27 14:46:39,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 58 remaining) [2024-01-27 14:46:39,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 58 remaining) [2024-01-27 14:46:39,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 58 remaining) [2024-01-27 14:46:39,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 58 remaining) [2024-01-27 14:46:39,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 58 remaining) [2024-01-27 14:46:39,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (27 of 58 remaining) [2024-01-27 14:46:39,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 58 remaining) [2024-01-27 14:46:39,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 58 remaining) [2024-01-27 14:46:39,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 58 remaining) [2024-01-27 14:46:39,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 58 remaining) [2024-01-27 14:46:39,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 58 remaining) [2024-01-27 14:46:39,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 58 remaining) [2024-01-27 14:46:39,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 58 remaining) [2024-01-27 14:46:39,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 58 remaining) [2024-01-27 14:46:39,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (18 of 58 remaining) [2024-01-27 14:46:39,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 58 remaining) [2024-01-27 14:46:39,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 58 remaining) [2024-01-27 14:46:39,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 58 remaining) [2024-01-27 14:46:39,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 58 remaining) [2024-01-27 14:46:39,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 58 remaining) [2024-01-27 14:46:39,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 58 remaining) [2024-01-27 14:46:39,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 58 remaining) [2024-01-27 14:46:39,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 58 remaining) [2024-01-27 14:46:39,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (9 of 58 remaining) [2024-01-27 14:46:39,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 58 remaining) [2024-01-27 14:46:39,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 58 remaining) [2024-01-27 14:46:39,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 58 remaining) [2024-01-27 14:46:39,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 58 remaining) [2024-01-27 14:46:39,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 58 remaining) [2024-01-27 14:46:39,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 58 remaining) [2024-01-27 14:46:39,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 58 remaining) [2024-01-27 14:46:39,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 58 remaining) [2024-01-27 14:46:39,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (0 of 58 remaining) [2024-01-27 14:46:39,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:46:39,647 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-27 14:46:39,651 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-27 14:46:39,652 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:46:39,672 INFO L503 ceAbstractionStarter]: Automizer considered 17 witness invariants [2024-01-27 14:46:39,672 INFO L504 ceAbstractionStarter]: WitnessConsidered=17 [2024-01-27 14:46:39,674 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:46:39 BasicIcfg [2024-01-27 14:46:39,674 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:46:39,675 INFO L158 Benchmark]: Toolchain (without parser) took 2634.21ms. Allocated memory was 165.7MB in the beginning and 255.9MB in the end (delta: 90.2MB). Free memory was 133.3MB in the beginning and 112.9MB in the end (delta: 20.4MB). Peak memory consumption was 113.0MB. Max. memory is 16.1GB. [2024-01-27 14:46:39,675 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:46:39,675 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 165.7MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:46:39,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.57ms. Allocated memory is still 165.7MB. Free memory was 133.3MB in the beginning and 109.6MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:39,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.42ms. Allocated memory is still 165.7MB. Free memory was 109.6MB in the beginning and 107.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:39,675 INFO L158 Benchmark]: Boogie Preprocessor took 51.52ms. Allocated memory is still 165.7MB. Free memory was 107.4MB in the beginning and 104.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 14:46:39,675 INFO L158 Benchmark]: RCFGBuilder took 483.90ms. Allocated memory is still 165.7MB. Free memory was 104.6MB in the beginning and 71.8MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-01-27 14:46:39,676 INFO L158 Benchmark]: TraceAbstraction took 1536.59ms. Allocated memory was 165.7MB in the beginning and 255.9MB in the end (delta: 90.2MB). Free memory was 71.1MB in the beginning and 112.9MB in the end (delta: -41.8MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:39,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 165.7MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.57ms. Allocated memory is still 165.7MB. Free memory was 133.3MB in the beginning and 109.6MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.42ms. Allocated memory is still 165.7MB. Free memory was 109.6MB in the beginning and 107.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.52ms. Allocated memory is still 165.7MB. Free memory was 107.4MB in the beginning and 104.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 483.90ms. Allocated memory is still 165.7MB. Free memory was 104.6MB in the beginning and 71.8MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1536.59ms. Allocated memory was 165.7MB in the beginning and 255.9MB in the end (delta: 90.2MB). Free memory was 71.1MB in the beginning and 112.9MB in the end (delta: -41.8MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 732]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L689] 0 volatile unsigned value = 0, m = 0; [L700] 0 volatile unsigned inc_flag = 0; [L701] 0 volatile unsigned dec_flag = 0; [L737] 0 pthread_t t; VAL [dec_flag=0, inc_flag=0, m=0, t={3:0}, value=0] [L738] COND TRUE 0 1 [L738] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [dec_flag=0, inc_flag=0, m=0, t={3:0}, value=0] [L731] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L731] 1 int r = __VERIFIER_nondet_int(); [L732] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, dec_flag=0, inc_flag=0, m=0, r=0, value=0] [L732] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, dec_flag=0, inc_flag=0, m=0, r=0, value=0] [L732] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPNEQ,IdentifierExpression[r],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, dec_flag=0, inc_flag=0, m=0, r=0, value=0] - UnprovableResult [Line: 731]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 738]: 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 with 1 thread instances CFG has 3 procedures, 126 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 3 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 186 locations, 58 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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! [2024-01-27 14:46:39,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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