./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 8857f20b 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-8857f20-m [2024-01-29 22:50:13,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:50:13,159 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:50:13,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:50:13,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:50:13,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:50:13,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:50:13,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:50:13,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:50:13,191 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:50:13,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:50:13,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:50:13,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:50:13,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:50:13,194 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:50:13,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:50:13,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:50:13,194 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:50:13,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:50:13,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:50:13,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:50:13,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:50:13,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:50:13,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:50:13,196 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:50:13,196 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:50:13,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:50:13,196 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:50:13,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:50:13,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:50:13,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:50:13,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:50:13,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:50:13,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:50:13,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:50:13,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:50:13,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:50:13,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:50:13,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:50:13,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:50:13,199 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:50:13,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:50:13,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:50:13,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:50:13,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:50:13,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:50:13,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:50:13,420 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:50:13,420 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:50:13,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/03_incdec.i [2024-01-29 22:50:14,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:50:14,803 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:50:14,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i [2024-01-29 22:50:14,821 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bbca7787/f2e1546982f444bdbc8a8e90060f219d/FLAGe14b80c94 [2024-01-29 22:50:14,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bbca7787/f2e1546982f444bdbc8a8e90060f219d [2024-01-29 22:50:14,838 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:50:14,839 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:50:14,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/03_incdec.yml/witness.yml [2024-01-29 22:50:14,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:50:14,920 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:50:14,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:50:14,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:50:14,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:50:14,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:50:14" (1/2) ... [2024-01-29 22:50:14,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c879bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:14, skipping insertion in model container [2024-01-29 22:50:14,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:50:14" (1/2) ... [2024-01-29 22:50:14,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16245488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:14, skipping insertion in model container [2024-01-29 22:50:14,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:14" (2/2) ... [2024-01-29 22:50:14,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c879bb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:14, skipping insertion in model container [2024-01-29 22:50:14,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:14" (2/2) ... [2024-01-29 22:50:14,928 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:50:14,960 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:50:14,961 INFO L98 nessWitnessExtractor]: Location invariant before [L731-L731] (unsigned long )arg == 0UL [2024-01-29 22:50:14,961 INFO L98 nessWitnessExtractor]: Location invariant after [L732-L733] (r == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:50:14,961 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L733] (unsigned long )arg == 0UL [2024-01-29 22:50:14,961 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L733] ((unsigned long )arg == 0UL) && (r != 0) [2024-01-29 22:50:14,961 INFO L98 nessWitnessExtractor]: Location invariant after [L732-L733] r == 0 [2024-01-29 22:50:14,962 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L733] ((unsigned long )arg == 0UL) && ((unsigned long )arg == 0UL) [2024-01-29 22:50:14,962 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 0U == inc_v [2024-01-29 22:50:14,962 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (0U == inc_v) && (inc_v == 0U) [2024-01-29 22:50:14,962 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] (0U == inc_v) && (inc_v == 0U) [2024-01-29 22:50:14,962 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] 0U == inc_v [2024-01-29 22:50:14,962 INFO L98 nessWitnessExtractor]: Location invariant after [L695-L699] (unsigned int )m == 0U [2024-01-29 22:50:14,962 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] 0U == inc_v [2024-01-29 22:50:14,962 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] (0U == inc_v) && (inc_v == 0U) [2024-01-29 22:50:14,963 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] 0U == inc_v [2024-01-29 22:50:14,963 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (0U == inc_v) && (inc_v == 0U) [2024-01-29 22:50:14,963 INFO L98 nessWitnessExtractor]: Location invariant after [L690-L694] (unsigned int )m == 1U [2024-01-29 22:50:14,963 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] (unsigned long )arg == 0UL [2024-01-29 22:50:14,963 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L714] (0U == inc_v) && (inc_v == 0U) [2024-01-29 22:50:14,963 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L714] 0U == inc_v [2024-01-29 22:50:15,006 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:50:15,264 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] [2024-01-29 22:50:15,270 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] [2024-01-29 22:50:15,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:50:15,283 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:50:15,318 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_acquire() { assume_abort_if_not(m==0); m = 1; } with a witness entry [2024-01-29 22:50:15,319 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 [2024-01-29 22:50:15,357 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 [2024-01-29 22:50:15,359 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 [2024-01-29 22:50:15,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:50:15,395 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:50:15,396 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15 WrapperNode [2024-01-29 22:50:15,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:50:15,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:50:15,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:50:15,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:50:15,403 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 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,418 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 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,456 INFO L138 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 150 [2024-01-29 22:50:15,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:50:15,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:50:15,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:50:15,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:50:15,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,468 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,477 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]. [2024-01-29 22:50:15,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:50:15,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:50:15,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:50:15,499 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:50:15,500 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (1/1) ... [2024-01-29 22:50:15,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:50:15,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:15,524 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) [2024-01-29 22:50:15,531 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 [2024-01-29 22:50:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-29 22:50:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-29 22:50:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:50:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:50:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:50:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:50:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:50:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:50:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:50:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:50:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:50:15,553 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:50:15,643 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:50:15,645 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:50:15,940 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:50:15,940 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:50:16,061 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:50:16,062 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-29 22:50:16,062 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:50:16 BoogieIcfgContainer [2024-01-29 22:50:16,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:50:16,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:50:16,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:50:16,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:50:16,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:50:14" (1/4) ... [2024-01-29 22:50:16,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d1db49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:50:16, skipping insertion in model container [2024-01-29 22:50:16,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:14" (2/4) ... [2024-01-29 22:50:16,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d1db49 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:50:16, skipping insertion in model container [2024-01-29 22:50:16,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:15" (3/4) ... [2024-01-29 22:50:16,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d1db49 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:50:16, skipping insertion in model container [2024-01-29 22:50:16,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:50:16" (4/4) ... [2024-01-29 22:50:16,081 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2024-01-29 22:50:16,095 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:50:16,095 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-01-29 22:50:16,095 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:50:16,152 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:50:16,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 70 transitions, 144 flow [2024-01-29 22:50:16,229 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2024-01-29 22:50:16,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:16,232 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. [2024-01-29 22:50:16,232 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 70 transitions, 144 flow [2024-01-29 22:50:16,235 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 70 transitions, 144 flow [2024-01-29 22:50:16,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:50:16,255 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;@492ff0f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:50:16,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-01-29 22:50:16,260 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:50:16,261 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-29 22:50:16,261 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:16,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:16,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:50:16,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:50:16,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:16,269 INFO L85 PathProgramCache]: Analyzing trace with hash 463386977, now seen corresponding path program 1 times [2024-01-29 22:50:16,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:16,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126360256] [2024-01-29 22:50:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:16,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:16,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:16,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:16,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126360256] [2024-01-29 22:50:16,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126360256] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:16,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:50:16,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:50:16,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274464556] [2024-01-29 22:50:16,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:16,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:50:16,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:16,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:50:16,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:50:16,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-01-29 22:50:16,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-01-29 22:50:16,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:16,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-01-29 22:50:16,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:16,789 INFO L124 PetriNetUnfolderBase]: 47/218 cut-off events. [2024-01-29 22:50:16,789 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:16,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 218 events. 47/218 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 996 event pairs, 0 based on Foata normal form. 12/185 useless extension candidates. Maximal degree in co-relation 314. Up to 98 conditions per place. [2024-01-29 22:50:16,793 INFO L140 encePairwiseOnDemand]: 61/70 looper letters, 25 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-01-29 22:50:16,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 190 flow [2024-01-29 22:50:16,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:50:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:50:16,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2024-01-29 22:50:16,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-01-29 22:50:16,808 INFO L175 Difference]: Start difference. First operand has 68 places, 70 transitions, 144 flow. Second operand 4 states and 192 transitions. [2024-01-29 22:50:16,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 190 flow [2024-01-29 22:50:16,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:50:16,817 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 134 flow [2024-01-29 22:50:16,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=134, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-01-29 22:50:16,824 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, -2 predicate places. [2024-01-29 22:50:16,824 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 134 flow [2024-01-29 22:50:16,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-01-29 22:50:16,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:16,825 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-01-29 22:50:16,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:50:16,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:50:16,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:16,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1480049946, now seen corresponding path program 1 times [2024-01-29 22:50:16,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:16,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317757052] [2024-01-29 22:50:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:16,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:16,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:50:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:16,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:50:16,877 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:50:16,878 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-01-29 22:50:16,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 39 remaining) [2024-01-29 22:50:16,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 39 remaining) [2024-01-29 22:50:16,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 39 remaining) [2024-01-29 22:50:16,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 39 remaining) [2024-01-29 22:50:16,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 39 remaining) [2024-01-29 22:50:16,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 39 remaining) [2024-01-29 22:50:16,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 39 remaining) [2024-01-29 22:50:16,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 39 remaining) [2024-01-29 22:50:16,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 39 remaining) [2024-01-29 22:50:16,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (28 of 39 remaining) [2024-01-29 22:50:16,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 39 remaining) [2024-01-29 22:50:16,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 39 remaining) [2024-01-29 22:50:16,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 39 remaining) [2024-01-29 22:50:16,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 39 remaining) [2024-01-29 22:50:16,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 39 remaining) [2024-01-29 22:50:16,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 39 remaining) [2024-01-29 22:50:16,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 39 remaining) [2024-01-29 22:50:16,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 39 remaining) [2024-01-29 22:50:16,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (19 of 39 remaining) [2024-01-29 22:50:16,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 39 remaining) [2024-01-29 22:50:16,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 39 remaining) [2024-01-29 22:50:16,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 39 remaining) [2024-01-29 22:50:16,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 39 remaining) [2024-01-29 22:50:16,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 39 remaining) [2024-01-29 22:50:16,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 39 remaining) [2024-01-29 22:50:16,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 39 remaining) [2024-01-29 22:50:16,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 39 remaining) [2024-01-29 22:50:16,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 39 remaining) [2024-01-29 22:50:16,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (9 of 39 remaining) [2024-01-29 22:50:16,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 39 remaining) [2024-01-29 22:50:16,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 39 remaining) [2024-01-29 22:50:16,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 39 remaining) [2024-01-29 22:50:16,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 39 remaining) [2024-01-29 22:50:16,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 39 remaining) [2024-01-29 22:50:16,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 39 remaining) [2024-01-29 22:50:16,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 39 remaining) [2024-01-29 22:50:16,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 39 remaining) [2024-01-29 22:50:16,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (0 of 39 remaining) [2024-01-29 22:50:16,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:50:16,887 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-29 22:50:16,889 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 22:50:16,890 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-29 22:50:16,930 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:50:16,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 135 transitions, 280 flow [2024-01-29 22:50:16,959 INFO L124 PetriNetUnfolderBase]: 10/140 cut-off events. [2024-01-29 22:50:16,960 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:50:16,964 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. [2024-01-29 22:50:16,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 135 transitions, 280 flow [2024-01-29 22:50:16,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 280 flow [2024-01-29 22:50:16,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:50:16,973 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;@492ff0f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:50:16,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-01-29 22:50:16,975 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:50:16,975 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-29 22:50:16,975 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:16,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:16,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:50:16,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 55 more)] === [2024-01-29 22:50:16,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:16,976 INFO L85 PathProgramCache]: Analyzing trace with hash 592281704, now seen corresponding path program 1 times [2024-01-29 22:50:16,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:16,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892508095] [2024-01-29 22:50:16,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:16,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:17,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:17,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892508095] [2024-01-29 22:50:17,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892508095] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:17,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:50:17,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:50:17,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713184045] [2024-01-29 22:50:17,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:17,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:50:17,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:50:17,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:50:17,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 135 [2024-01-29 22:50:17,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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) [2024-01-29 22:50:17,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:17,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 135 [2024-01-29 22:50:17,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:17,602 INFO L124 PetriNetUnfolderBase]: 2150/5242 cut-off events. [2024-01-29 22:50:17,602 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-01-29 22:50:17,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8471 conditions, 5242 events. 2150/5242 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 46228 event pairs, 1008 based on Foata normal form. 357/4659 useless extension candidates. Maximal degree in co-relation 8037. Up to 3062 conditions per place. [2024-01-29 22:50:17,630 INFO L140 encePairwiseOnDemand]: 124/135 looper letters, 65 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2024-01-29 22:50:17,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 149 transitions, 447 flow [2024-01-29 22:50:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:50:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:50:17,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2024-01-29 22:50:17,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7555555555555555 [2024-01-29 22:50:17,635 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 280 flow. Second operand 4 states and 408 transitions. [2024-01-29 22:50:17,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 149 transitions, 447 flow [2024-01-29 22:50:17,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 149 transitions, 447 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:50:17,639 INFO L231 Difference]: Finished difference. Result has 128 places, 126 transitions, 266 flow [2024-01-29 22:50:17,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=128, PETRI_TRANSITIONS=126} [2024-01-29 22:50:17,639 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2024-01-29 22:50:17,640 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 126 transitions, 266 flow [2024-01-29 22:50:17,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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) [2024-01-29 22:50:17,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:17,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:17,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:50:17,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 55 more)] === [2024-01-29 22:50:17,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:17,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2047909526, now seen corresponding path program 1 times [2024-01-29 22:50:17,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:17,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720511393] [2024-01-29 22:50:17,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:17,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:17,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:50:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:17,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:50:17,668 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:50:17,668 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 58 remaining) [2024-01-29 22:50:17,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 58 remaining) [2024-01-29 22:50:17,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 58 remaining) [2024-01-29 22:50:17,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 58 remaining) [2024-01-29 22:50:17,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 58 remaining) [2024-01-29 22:50:17,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 58 remaining) [2024-01-29 22:50:17,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 58 remaining) [2024-01-29 22:50:17,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 58 remaining) [2024-01-29 22:50:17,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 58 remaining) [2024-01-29 22:50:17,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 58 remaining) [2024-01-29 22:50:17,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (47 of 58 remaining) [2024-01-29 22:50:17,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 58 remaining) [2024-01-29 22:50:17,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 58 remaining) [2024-01-29 22:50:17,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 58 remaining) [2024-01-29 22:50:17,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 58 remaining) [2024-01-29 22:50:17,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 58 remaining) [2024-01-29 22:50:17,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 58 remaining) [2024-01-29 22:50:17,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 58 remaining) [2024-01-29 22:50:17,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 58 remaining) [2024-01-29 22:50:17,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (38 of 58 remaining) [2024-01-29 22:50:17,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 58 remaining) [2024-01-29 22:50:17,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 58 remaining) [2024-01-29 22:50:17,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 58 remaining) [2024-01-29 22:50:17,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 58 remaining) [2024-01-29 22:50:17,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 58 remaining) [2024-01-29 22:50:17,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 58 remaining) [2024-01-29 22:50:17,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 58 remaining) [2024-01-29 22:50:17,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 58 remaining) [2024-01-29 22:50:17,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 58 remaining) [2024-01-29 22:50:17,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 58 remaining) [2024-01-29 22:50:17,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (27 of 58 remaining) [2024-01-29 22:50:17,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 58 remaining) [2024-01-29 22:50:17,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 58 remaining) [2024-01-29 22:50:17,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 58 remaining) [2024-01-29 22:50:17,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 58 remaining) [2024-01-29 22:50:17,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 58 remaining) [2024-01-29 22:50:17,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 58 remaining) [2024-01-29 22:50:17,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 58 remaining) [2024-01-29 22:50:17,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 58 remaining) [2024-01-29 22:50:17,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (18 of 58 remaining) [2024-01-29 22:50:17,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 58 remaining) [2024-01-29 22:50:17,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 58 remaining) [2024-01-29 22:50:17,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 58 remaining) [2024-01-29 22:50:17,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 58 remaining) [2024-01-29 22:50:17,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 58 remaining) [2024-01-29 22:50:17,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 58 remaining) [2024-01-29 22:50:17,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 58 remaining) [2024-01-29 22:50:17,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 58 remaining) [2024-01-29 22:50:17,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (9 of 58 remaining) [2024-01-29 22:50:17,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 58 remaining) [2024-01-29 22:50:17,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 58 remaining) [2024-01-29 22:50:17,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 58 remaining) [2024-01-29 22:50:17,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 58 remaining) [2024-01-29 22:50:17,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 58 remaining) [2024-01-29 22:50:17,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 58 remaining) [2024-01-29 22:50:17,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 58 remaining) [2024-01-29 22:50:17,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 58 remaining) [2024-01-29 22:50:17,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (0 of 58 remaining) [2024-01-29 22:50:17,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:50:17,677 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-29 22:50:17,681 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-29 22:50:17,681 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:50:17,696 INFO L503 ceAbstractionStarter]: Automizer considered 17 witness invariants [2024-01-29 22:50:17,696 INFO L504 ceAbstractionStarter]: WitnessConsidered=17 [2024-01-29 22:50:17,697 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:50:17 BasicIcfg [2024-01-29 22:50:17,697 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:50:17,698 INFO L158 Benchmark]: Toolchain (without parser) took 2777.99ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 153.4MB in the beginning and 96.5MB in the end (delta: 56.8MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. [2024-01-29 22:50:17,698 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:50:17,698 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:50:17,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.83ms. Allocated memory is still 188.7MB. Free memory was 153.4MB in the beginning and 129.1MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-29 22:50:17,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.86ms. Allocated memory is still 188.7MB. Free memory was 129.1MB in the beginning and 127.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:50:17,699 INFO L158 Benchmark]: Boogie Preprocessor took 41.33ms. Allocated memory is still 188.7MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:50:17,699 INFO L158 Benchmark]: RCFGBuilder took 563.30ms. Allocated memory is still 188.7MB. Free memory was 124.0MB in the beginning and 91.5MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-01-29 22:50:17,699 INFO L158 Benchmark]: TraceAbstraction took 1633.25ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 90.4MB in the beginning and 96.5MB in the end (delta: -6.1MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-01-29 22:50:17,700 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.83ms. Allocated memory is still 188.7MB. Free memory was 153.4MB in the beginning and 129.1MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.86ms. Allocated memory is still 188.7MB. Free memory was 129.1MB in the beginning and 127.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.33ms. Allocated memory is still 188.7MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 563.30ms. Allocated memory is still 188.7MB. Free memory was 124.0MB in the beginning and 91.5MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1633.25ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 90.4MB in the beginning and 96.5MB in the end (delta: -6.1MB). Peak memory consumption was 31.7MB. 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[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]],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[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]],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: 0.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 6 mSDtfsCounter, 53 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, 0.0s 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, 111 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 106 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, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 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! [2024-01-29 22:50:17,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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