./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/sync01.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/sync01.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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/sync01.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/sync01.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-ab2e0ac-m [2024-01-29 14:11:31,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:11:31,906 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:11:31,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:11:31,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:11:31,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:11:31,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:11:31,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:11:31,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:11:31,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:11:31,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:11:31,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:11:31,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:11:31,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:11:31,943 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:11:31,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:11:31,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:11:31,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:11:31,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:11:31,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:11:31,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:11:31,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:11:31,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:11:31,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:11:31,945 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:11:31,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:11:31,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:11:31,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:11:31,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:11:31,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:11:31,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:11:31,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:11:31,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:11:31,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:11:31,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:11:31,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:11:31,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:11:31,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:11:31,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:11:31,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:11:31,948 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:11:31,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:11:31,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:11:31,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:11:32,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:11:32,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:11:32,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:11:32,173 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:11:32,174 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:11:32,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2024-01-29 14:11:33,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:11:33,525 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:11:33,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2024-01-29 14:11:33,543 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac08ebe9b/bced8f5808fb4ac498ebfbe10fc61821/FLAG3c9fb8301 [2024-01-29 14:11:33,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac08ebe9b/bced8f5808fb4ac498ebfbe10fc61821 [2024-01-29 14:11:33,559 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:11:33,560 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:11:33,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/sync01.yml/witness.yml [2024-01-29 14:11:33,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:11:33,652 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:11:33,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:11:33,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:11:33,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:11:33,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:11:33" (1/2) ... [2024-01-29 14:11:33,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51da2a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33, skipping insertion in model container [2024-01-29 14:11:33,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:11:33" (1/2) ... [2024-01-29 14:11:33,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c5ffc47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33, skipping insertion in model container [2024-01-29 14:11:33,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:33" (2/2) ... [2024-01-29 14:11:33,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51da2a8a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:11:33, skipping insertion in model container [2024-01-29 14:11:33,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:33" (2/2) ... [2024-01-29 14:11:33,663 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:11:33,701 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:11:33,703 INFO L98 nessWitnessExtractor]: Location invariant before [L939-L939] num == 1 [2024-01-29 14:11:33,703 INFO L98 nessWitnessExtractor]: Location invariant before [L939-L939] (unsigned long )arg == 0UL [2024-01-29 14:11:33,703 INFO L98 nessWitnessExtractor]: Location invariant before [L941-L941] (unsigned long )arg == 0UL [2024-01-29 14:11:33,703 INFO L98 nessWitnessExtractor]: Location invariant before [L940-L940] (unsigned long )arg == 0UL [2024-01-29 14:11:33,703 INFO L98 nessWitnessExtractor]: Location invariant before [L960-L960] num == 1 [2024-01-29 14:11:33,704 INFO L98 nessWitnessExtractor]: Location invariant before [L948-L948] (unsigned long )arg == 0UL [2024-01-29 14:11:33,704 INFO L98 nessWitnessExtractor]: Location invariant before [L948-L948] num == 1 [2024-01-29 14:11:33,704 INFO L98 nessWitnessExtractor]: Location invariant before [L958-L958] num == 1 [2024-01-29 14:11:33,704 INFO L98 nessWitnessExtractor]: Location invariant before [L938-L938] num == 0 [2024-01-29 14:11:33,704 INFO L98 nessWitnessExtractor]: Location invariant before [L938-L938] (unsigned long )arg == 0UL [2024-01-29 14:11:33,704 INFO L98 nessWitnessExtractor]: Location invariant before [L957-L957] num == 1 [2024-01-29 14:11:33,705 INFO L98 nessWitnessExtractor]: Location invariant before [L935-L935] (unsigned long )arg == 0UL [2024-01-29 14:11:33,705 INFO L98 nessWitnessExtractor]: Location invariant after [L946-L947] num == 0 [2024-01-29 14:11:33,705 INFO L98 nessWitnessExtractor]: Location invariant after [L946-L947] (unsigned long )arg == 0UL [2024-01-29 14:11:33,705 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] num <= 1 [2024-01-29 14:11:33,705 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] 0 <= num [2024-01-29 14:11:33,705 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] (unsigned long )arg == 0UL [2024-01-29 14:11:33,705 INFO L98 nessWitnessExtractor]: Location invariant before [L945-L945] (unsigned long )arg == 0UL [2024-01-29 14:11:33,706 INFO L98 nessWitnessExtractor]: Location invariant before [L949-L949] (unsigned long )arg == 0UL [2024-01-29 14:11:33,706 INFO L98 nessWitnessExtractor]: Location invariant before [L949-L949] num == 0 [2024-01-29 14:11:33,706 INFO L98 nessWitnessExtractor]: Location invariant before [L951-L951] (unsigned long )arg == 0UL [2024-01-29 14:11:33,706 INFO L98 nessWitnessExtractor]: Location invariant before [L956-L956] num == 0 [2024-01-29 14:11:33,706 INFO L98 nessWitnessExtractor]: Location invariant before [L959-L959] num == 1 [2024-01-29 14:11:33,707 INFO L98 nessWitnessExtractor]: Location invariant before [L950-L950] (unsigned long )arg == 0UL [2024-01-29 14:11:33,707 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] (unsigned long )arg == 0UL [2024-01-29 14:11:33,707 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] num <= 1 [2024-01-29 14:11:33,707 INFO L98 nessWitnessExtractor]: Location invariant after [L936-L937] num == 1 [2024-01-29 14:11:33,707 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] 0 <= num [2024-01-29 14:11:33,707 INFO L98 nessWitnessExtractor]: Location invariant after [L936-L937] (unsigned long )arg == 0UL [2024-01-29 14:11:33,744 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:11:34,121 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/sync01.i[42004,42017] [2024-01-29 14:11:34,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:11:34,137 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 14:11:34,235 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/sync01.i[42004,42017] [2024-01-29 14:11:34,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:11:34,287 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:11:34,289 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:11:34 WrapperNode [2024-01-29 14:11:34,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:11:34,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:11:34,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:11:34,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:11:34,296 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,314 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,334 INFO L138 Inliner]: procedures = 269, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2024-01-29 14:11:34,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:11:34,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:11:34,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:11:34,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:11:34,345 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,345 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,359 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,371 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 5, 8, 8, 2, 2]. 30 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 8, 8, 0, 0]. The 2 writes are split as follows [0, 0, 0, 0, 1, 1]. [2024-01-29 14:11:34,371 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,371 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,376 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,378 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,380 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,381 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:11:34,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:11:34,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:11:34,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:11:34,384 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 02:11:34" (1/1) ... [2024-01-29 14:11:34,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:11:34,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:11:34,428 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 14:11:34,436 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 14:11:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:11:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:11:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:11:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:11:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:11:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:11:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:11:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:11:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-29 14:11:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:11:34,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:11:34,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:11:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:11:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:11:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:11:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:11:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:11:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:11:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-29 14:11:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:11:34,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:11:34,469 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 14:11:34,597 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:11:34,598 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:11:34,829 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:11:34,829 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:11:34,987 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:11:34,987 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-29 14:11:34,988 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:11:34 BoogieIcfgContainer [2024-01-29 14:11:34,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:11:34,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:11:34,990 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:11:34,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:11:34,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:11:33" (1/4) ... [2024-01-29 14:11:34,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7434d57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:11:34, skipping insertion in model container [2024-01-29 14:11:34,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:33" (2/4) ... [2024-01-29 14:11:34,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7434d57c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:11:34, skipping insertion in model container [2024-01-29 14:11:34,994 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 02:11:34" (3/4) ... [2024-01-29 14:11:34,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7434d57c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:11:34, skipping insertion in model container [2024-01-29 14:11:34,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:11:34" (4/4) ... [2024-01-29 14:11:34,996 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2024-01-29 14:11:35,009 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:11:35,010 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-01-29 14:11:35,010 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:11:35,076 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 14:11:35,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 222 flow [2024-01-29 14:11:35,126 INFO L124 PetriNetUnfolderBase]: 3/102 cut-off events. [2024-01-29 14:11:35,127 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 14:11:35,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 102 events. 3/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 251 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2024-01-29 14:11:35,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 104 transitions, 222 flow [2024-01-29 14:11:35,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 99 transitions, 210 flow [2024-01-29 14:11:35,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:11:35,146 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;@1cc34011, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:11:35,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2024-01-29 14:11:35,149 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:11:35,149 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:11:35,149 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:11:35,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:35,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:11:35,150 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 14:11:35,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash 11186, now seen corresponding path program 1 times [2024-01-29 14:11:35,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:35,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922227773] [2024-01-29 14:11:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:35,319 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 14:11:35,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:35,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922227773] [2024-01-29 14:11:35,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922227773] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:35,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:35,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:11:35,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027395520] [2024-01-29 14:11:35,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:35,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:11:35,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:35,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:11:35,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:11:35,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 104 [2024-01-29 14:11:35,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 14:11:35,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:35,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 104 [2024-01-29 14:11:35,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:35,577 INFO L124 PetriNetUnfolderBase]: 620/1734 cut-off events. [2024-01-29 14:11:35,577 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-01-29 14:11:35,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2913 conditions, 1734 events. 620/1734 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 12953 event pairs, 361 based on Foata normal form. 156/1522 useless extension candidates. Maximal degree in co-relation 2657. Up to 749 conditions per place. [2024-01-29 14:11:35,591 INFO L140 encePairwiseOnDemand]: 85/104 looper letters, 52 selfloop transitions, 6 changer transitions 0/111 dead transitions. [2024-01-29 14:11:35,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 111 transitions, 353 flow [2024-01-29 14:11:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:11:35,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:11:35,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2024-01-29 14:11:35,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2024-01-29 14:11:35,604 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 210 flow. Second operand 3 states and 236 transitions. [2024-01-29 14:11:35,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 111 transitions, 353 flow [2024-01-29 14:11:35,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 111 transitions, 343 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:11:35,613 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 256 flow [2024-01-29 14:11:35,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-01-29 14:11:35,617 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -1 predicate places. [2024-01-29 14:11:35,617 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 256 flow [2024-01-29 14:11:35,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 14:11:35,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:35,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:11:35,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:11:35,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 14:11:35,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:35,621 INFO L85 PathProgramCache]: Analyzing trace with hash 347136, now seen corresponding path program 1 times [2024-01-29 14:11:35,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:35,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158525314] [2024-01-29 14:11:35,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:35,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:35,717 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 14:11:35,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:35,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158525314] [2024-01-29 14:11:35,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158525314] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:35,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:35,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:11:35,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924347378] [2024-01-29 14:11:35,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:35,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:11:35,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:35,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:11:35,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:11:35,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2024-01-29 14:11:35,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 14:11:35,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:35,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2024-01-29 14:11:35,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:35,809 INFO L124 PetriNetUnfolderBase]: 41/154 cut-off events. [2024-01-29 14:11:35,810 INFO L125 PetriNetUnfolderBase]: For 99/101 co-relation queries the response was YES. [2024-01-29 14:11:35,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 154 events. 41/154 cut-off events. For 99/101 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 597 event pairs, 31 based on Foata normal form. 62/183 useless extension candidates. Maximal degree in co-relation 253. Up to 76 conditions per place. [2024-01-29 14:11:35,811 INFO L140 encePairwiseOnDemand]: 90/104 looper letters, 14 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2024-01-29 14:11:35,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 118 flow [2024-01-29 14:11:35,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:11:35,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:11:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2024-01-29 14:11:35,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2024-01-29 14:11:35,833 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 256 flow. Second operand 3 states and 184 transitions. [2024-01-29 14:11:35,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 118 flow [2024-01-29 14:11:35,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 14:11:35,835 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 84 flow [2024-01-29 14:11:35,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2024-01-29 14:11:35,836 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -62 predicate places. [2024-01-29 14:11:35,836 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 84 flow [2024-01-29 14:11:35,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 14:11:35,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:35,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:35,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:11:35,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 14:11:35,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:35,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1552937278, now seen corresponding path program 1 times [2024-01-29 14:11:35,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:35,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429259038] [2024-01-29 14:11:35,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:35,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:35,962 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 14:11:35,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:35,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429259038] [2024-01-29 14:11:35,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429259038] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:35,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:35,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:35,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776547306] [2024-01-29 14:11:35,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:35,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:11:35,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:35,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:11:35,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:11:35,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 104 [2024-01-29 14:11:35,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 14:11:35,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:35,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 104 [2024-01-29 14:11:35,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:36,036 INFO L124 PetriNetUnfolderBase]: 50/189 cut-off events. [2024-01-29 14:11:36,036 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 14:11:36,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 189 events. 50/189 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 756 event pairs, 16 based on Foata normal form. 24/196 useless extension candidates. Maximal degree in co-relation 303. Up to 74 conditions per place. [2024-01-29 14:11:36,038 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 17 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2024-01-29 14:11:36,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 129 flow [2024-01-29 14:11:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:11:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:11:36,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2024-01-29 14:11:36,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7067307692307693 [2024-01-29 14:11:36,039 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 84 flow. Second operand 4 states and 294 transitions. [2024-01-29 14:11:36,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 129 flow [2024-01-29 14:11:36,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 39 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:11:36,041 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 81 flow [2024-01-29 14:11:36,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=81, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2024-01-29 14:11:36,042 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -63 predicate places. [2024-01-29 14:11:36,042 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 81 flow [2024-01-29 14:11:36,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 14:11:36,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:36,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:36,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:11:36,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 14:11:36,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2017882330, now seen corresponding path program 1 times [2024-01-29 14:11:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:36,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316508960] [2024-01-29 14:11:36,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:36,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:36,137 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 14:11:36,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:36,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316508960] [2024-01-29 14:11:36,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316508960] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:36,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:36,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:36,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416734536] [2024-01-29 14:11:36,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:36,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:11:36,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:36,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:11:36,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:11:36,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 104 [2024-01-29 14:11:36,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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 14:11:36,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:36,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 104 [2024-01-29 14:11:36,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:36,194 INFO L124 PetriNetUnfolderBase]: 53/184 cut-off events. [2024-01-29 14:11:36,194 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-29 14:11:36,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 184 events. 53/184 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 706 event pairs, 16 based on Foata normal form. 14/190 useless extension candidates. Maximal degree in co-relation 303. Up to 62 conditions per place. [2024-01-29 14:11:36,195 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 19 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2024-01-29 14:11:36,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 133 flow [2024-01-29 14:11:36,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:11:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:11:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 295 transitions. [2024-01-29 14:11:36,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7091346153846154 [2024-01-29 14:11:36,196 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 81 flow. Second operand 4 states and 295 transitions. [2024-01-29 14:11:36,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 133 flow [2024-01-29 14:11:36,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 39 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:36,197 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 78 flow [2024-01-29 14:11:36,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2024-01-29 14:11:36,198 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -64 predicate places. [2024-01-29 14:11:36,198 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 78 flow [2024-01-29 14:11:36,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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 14:11:36,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:36,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:36,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:11:36,199 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 14:11:36,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1515803524, now seen corresponding path program 1 times [2024-01-29 14:11:36,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:36,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629354940] [2024-01-29 14:11:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:36,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:11:36,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:11:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:11:36,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:11:36,236 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:11:36,237 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 68 remaining) [2024-01-29 14:11:36,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 68 remaining) [2024-01-29 14:11:36,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 68 remaining) [2024-01-29 14:11:36,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 68 remaining) [2024-01-29 14:11:36,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 68 remaining) [2024-01-29 14:11:36,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 68 remaining) [2024-01-29 14:11:36,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 68 remaining) [2024-01-29 14:11:36,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 68 remaining) [2024-01-29 14:11:36,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 68 remaining) [2024-01-29 14:11:36,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 68 remaining) [2024-01-29 14:11:36,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 68 remaining) [2024-01-29 14:11:36,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 68 remaining) [2024-01-29 14:11:36,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 68 remaining) [2024-01-29 14:11:36,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 68 remaining) [2024-01-29 14:11:36,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 68 remaining) [2024-01-29 14:11:36,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 68 remaining) [2024-01-29 14:11:36,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 68 remaining) [2024-01-29 14:11:36,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 68 remaining) [2024-01-29 14:11:36,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 68 remaining) [2024-01-29 14:11:36,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 68 remaining) [2024-01-29 14:11:36,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 68 remaining) [2024-01-29 14:11:36,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 68 remaining) [2024-01-29 14:11:36,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 68 remaining) [2024-01-29 14:11:36,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 68 remaining) [2024-01-29 14:11:36,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 68 remaining) [2024-01-29 14:11:36,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 68 remaining) [2024-01-29 14:11:36,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 68 remaining) [2024-01-29 14:11:36,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 68 remaining) [2024-01-29 14:11:36,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 68 remaining) [2024-01-29 14:11:36,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 68 remaining) [2024-01-29 14:11:36,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 68 remaining) [2024-01-29 14:11:36,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 68 remaining) [2024-01-29 14:11:36,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 68 remaining) [2024-01-29 14:11:36,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 68 remaining) [2024-01-29 14:11:36,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 68 remaining) [2024-01-29 14:11:36,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 68 remaining) [2024-01-29 14:11:36,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (31 of 68 remaining) [2024-01-29 14:11:36,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 68 remaining) [2024-01-29 14:11:36,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 68 remaining) [2024-01-29 14:11:36,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 68 remaining) [2024-01-29 14:11:36,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 68 remaining) [2024-01-29 14:11:36,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 68 remaining) [2024-01-29 14:11:36,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 68 remaining) [2024-01-29 14:11:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 68 remaining) [2024-01-29 14:11:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 68 remaining) [2024-01-29 14:11:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 68 remaining) [2024-01-29 14:11:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 68 remaining) [2024-01-29 14:11:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 68 remaining) [2024-01-29 14:11:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 68 remaining) [2024-01-29 14:11:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 68 remaining) [2024-01-29 14:11:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 68 remaining) [2024-01-29 14:11:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 68 remaining) [2024-01-29 14:11:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 68 remaining) [2024-01-29 14:11:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 68 remaining) [2024-01-29 14:11:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 68 remaining) [2024-01-29 14:11:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 68 remaining) [2024-01-29 14:11:36,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 68 remaining) [2024-01-29 14:11:36,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 68 remaining) [2024-01-29 14:11:36,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 68 remaining) [2024-01-29 14:11:36,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 68 remaining) [2024-01-29 14:11:36,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 68 remaining) [2024-01-29 14:11:36,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 68 remaining) [2024-01-29 14:11:36,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 68 remaining) [2024-01-29 14:11:36,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 68 remaining) [2024-01-29 14:11:36,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 68 remaining) [2024-01-29 14:11:36,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 68 remaining) [2024-01-29 14:11:36,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 68 remaining) [2024-01-29 14:11:36,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 68 remaining) [2024-01-29 14:11:36,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:11:36,249 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-29 14:11:36,254 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:11:36,254 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:11:36,274 INFO L503 ceAbstractionStarter]: Automizer considered 35 witness invariants [2024-01-29 14:11:36,274 INFO L504 ceAbstractionStarter]: WitnessConsidered=35 [2024-01-29 14:11:36,275 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:11:36 BasicIcfg [2024-01-29 14:11:36,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:11:36,275 INFO L158 Benchmark]: Toolchain (without parser) took 2623.32ms. Allocated memory is still 182.5MB. Free memory was 109.5MB in the beginning and 69.1MB in the end (delta: 40.4MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2024-01-29 14:11:36,275 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:11:36,276 INFO L158 Benchmark]: Witness Parser took 4.23ms. Allocated memory is still 182.5MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:11:36,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.65ms. Allocated memory is still 182.5MB. Free memory was 109.2MB in the beginning and 128.2MB in the end (delta: -19.0MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-01-29 14:11:36,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.67ms. Allocated memory is still 182.5MB. Free memory was 128.2MB in the beginning and 126.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:11:36,276 INFO L158 Benchmark]: Boogie Preprocessor took 48.42ms. Allocated memory is still 182.5MB. Free memory was 126.0MB in the beginning and 123.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-29 14:11:36,277 INFO L158 Benchmark]: RCFGBuilder took 604.31ms. Allocated memory is still 182.5MB. Free memory was 123.2MB in the beginning and 79.1MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-01-29 14:11:36,277 INFO L158 Benchmark]: TraceAbstraction took 1285.27ms. Allocated memory is still 182.5MB. Free memory was 77.9MB in the beginning and 69.1MB in the end (delta: 8.8MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-01-29 14:11:36,278 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 109.1MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 4.23ms. Allocated memory is still 182.5MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.65ms. Allocated memory is still 182.5MB. Free memory was 109.2MB in the beginning and 128.2MB in the end (delta: -19.0MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.67ms. Allocated memory is still 182.5MB. Free memory was 128.2MB in the beginning and 126.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.42ms. Allocated memory is still 182.5MB. Free memory was 126.0MB in the beginning and 123.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 604.31ms. Allocated memory is still 182.5MB. Free memory was 123.2MB in the beginning and 79.1MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1285.27ms. Allocated memory is still 182.5MB. Free memory was 77.9MB in the beginning and 69.1MB in the end (delta: 8.8MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L930] 0 int num; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L955] 0 pthread_t t1, t2; VAL [empty={4:0}, full={5:0}, m={3:0}, num=0, t1={6:0}, t2={7:0}] [L956] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[0]]]] [L956] 0 num = 1 VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L957] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] [L958] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L959] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L960] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] [L960] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L961] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L945] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[num],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[num]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] COND FALSE 2 !(num == 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] - UnprovableResult [Line: 935]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 938]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 938]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 940]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 949]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 949]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 950]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 951]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 956]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 957]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 958]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 959]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 960]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 966]: 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: 961]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 960]: 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 5 procedures, 182 locations, 68 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: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 278 IncrementalHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 48 mSDtfsCounter, 278 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=1, InterpolantAutomatonStates: 14, 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, 0.3s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 14:11:36,317 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