./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/test-easy10.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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/weaver/test-easy10.wvr.c ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/test-easy10.wvr.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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:20:55,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:20:55,068 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:20:55,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:20:55,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:20:55,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:20:55,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:20:55,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:20:55,085 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:20:55,085 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:20:55,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:20:55,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:20:55,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:20:55,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:20:55,086 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:20:55,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:20:55,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:20:55,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:20:55,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:20:55,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:20:55,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:20:55,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:20:55,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:20:55,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:20:55,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:20:55,089 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:20:55,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:20:55,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:20:55,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:20:55,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:20:55,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:20:55,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:20:55,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:20:55,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:20:55,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:20:55,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:20:55,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:20:55,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:20:55,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:20:55,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:20:55,092 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:20:55,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:20:55,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:20:55,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:20:55,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:20:55,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:20:55,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:20:55,360 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:20:55,360 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:20:55,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c [2024-02-07 19:20:56,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:20:56,490 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:20:56,491 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2024-02-07 19:20:56,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d25fa3e6c/f0f05a5e06334ca29e39d39e7c484933/FLAG45769a420 [2024-02-07 19:20:56,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d25fa3e6c/f0f05a5e06334ca29e39d39e7c484933 [2024-02-07 19:20:56,516 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:20:56,517 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:20:56,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/test-easy10.wvr.yml/witness.yml [2024-02-07 19:20:56,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:20:56,652 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:20:56,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:20:56,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:20:56,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:20:56,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:20:56" (1/2) ... [2024-02-07 19:20:56,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6058ecc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:56, skipping insertion in model container [2024-02-07 19:20:56,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:20:56" (1/2) ... [2024-02-07 19:20:56,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48e10a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:56, skipping insertion in model container [2024-02-07 19:20:56,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:20:56" (2/2) ... [2024-02-07 19:20:56,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6058ecc2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56, skipping insertion in model container [2024-02-07 19:20:56,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:20:56" (2/2) ... [2024-02-07 19:20:56,663 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:20:56,692 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:20:56,694 INFO L76 edCorrectnessWitness]: Location invariant before [L116-L116] (y2 <= 1U) && (y2 == 0U || y2 == 1U) [2024-02-07 19:20:56,694 INFO L76 edCorrectnessWitness]: Location invariant before [L92-L92] t12 == (_Bool)0 || t12 == (_Bool)1 [2024-02-07 19:20:56,694 INFO L76 edCorrectnessWitness]: Location invariant before [L79-L79] t21 == (_Bool)0 || t21 == (_Bool)1 [2024-02-07 19:20:56,694 INFO L76 edCorrectnessWitness]: Location invariant before [L81-L81] t21 == (_Bool)0 || t21 == (_Bool)1 [2024-02-07 19:20:56,694 INFO L76 edCorrectnessWitness]: Location invariant before [L82-L82] (x1 <= 1U) && (x1 == 0U || x1 == 1U) [2024-02-07 19:20:56,694 INFO L76 edCorrectnessWitness]: Location invariant before [L127-L127] t22 == (_Bool)0 || t22 == (_Bool)1 [2024-02-07 19:20:56,695 INFO L76 edCorrectnessWitness]: Location invariant before [L104-L104] t12 == (_Bool)0 || t12 == (_Bool)1 [2024-02-07 19:20:56,695 INFO L76 edCorrectnessWitness]: Location invariant before [L52-L52] (f11 == (_Bool)1) && (f21 == (_Bool)0 || f21 == (_Bool)1) [2024-02-07 19:20:56,695 INFO L76 edCorrectnessWitness]: Location invariant before [L105-L105] (y2 <= 1U) && (y2 == 0U || y2 == 1U) [2024-02-07 19:20:56,695 INFO L76 edCorrectnessWitness]: Location invariant before [L67-L67] t21 == (_Bool)0 || t21 == (_Bool)1 [2024-02-07 19:20:56,695 INFO L76 edCorrectnessWitness]: Location invariant before [L121-L121] (f12 == (_Bool)1) && (f22 == (_Bool)0 || f22 == (_Bool)1) [2024-02-07 19:20:56,698 INFO L76 edCorrectnessWitness]: Location invariant before [L70-L70] (y1 <= 1U) && (y1 == 0U || y1 == 1U) [2024-02-07 19:20:56,699 INFO L76 edCorrectnessWitness]: Location invariant before [L128-L128] (x2 <= 1U) && (x2 == 0U || x2 == 1U) [2024-02-07 19:20:56,699 INFO L76 edCorrectnessWitness]: Location invariant before [L59-L59] (y1 <= 1U) && (y1 == 0U || y1 == 1U) [2024-02-07 19:20:56,699 INFO L76 edCorrectnessWitness]: Location invariant before [L115-L115] t22 == (_Bool)0 || t22 == (_Bool)1 [2024-02-07 19:20:56,699 INFO L76 edCorrectnessWitness]: Location invariant before [L75-L75] (f11 == (_Bool)1) && (f21 == (_Bool)0 || f21 == (_Bool)1) [2024-02-07 19:20:56,699 INFO L76 edCorrectnessWitness]: Location invariant before [L98-L98] (f12 == (_Bool)1) && (f22 == (_Bool)0 || f22 == (_Bool)1) [2024-02-07 19:20:56,699 INFO L76 edCorrectnessWitness]: Location invariant before [L50-L50] f11 == (_Bool)1 [2024-02-07 19:20:56,699 INFO L76 edCorrectnessWitness]: Location invariant before [L47-L47] (x1 <= 1U) && (x1 == 0U || x1 == 1U) [2024-02-07 19:20:56,699 INFO L76 edCorrectnessWitness]: Location invariant before [L44-L44] t11 == (_Bool)0 || t11 == (_Bool)1 [2024-02-07 19:20:56,700 INFO L76 edCorrectnessWitness]: Location invariant before [L73-L73] f21 == (_Bool)1 [2024-02-07 19:20:56,700 INFO L76 edCorrectnessWitness]: Location invariant before [L90-L90] t12 == (_Bool)0 || t12 == (_Bool)1 [2024-02-07 19:20:56,700 INFO L76 edCorrectnessWitness]: Location invariant before [L102-L102] t12 == (_Bool)0 || t12 == (_Bool)1 [2024-02-07 19:20:56,701 INFO L76 edCorrectnessWitness]: Location invariant before [L46-L46] t11 == (_Bool)0 || t11 == (_Bool)1 [2024-02-07 19:20:56,701 INFO L76 edCorrectnessWitness]: Location invariant before [L58-L58] t11 == (_Bool)0 || t11 == (_Bool)1 [2024-02-07 19:20:56,701 INFO L76 edCorrectnessWitness]: Location invariant before [L56-L56] t11 == (_Bool)0 || t11 == (_Bool)1 [2024-02-07 19:20:56,701 INFO L76 edCorrectnessWitness]: Location invariant before [L125-L125] t22 == (_Bool)0 || t22 == (_Bool)1 [2024-02-07 19:20:56,701 INFO L76 edCorrectnessWitness]: Location invariant before [L93-L93] (x2 <= 1U) && (x2 == 0U || x2 == 1U) [2024-02-07 19:20:56,701 INFO L76 edCorrectnessWitness]: Location invariant before [L96-L96] f12 == (_Bool)1 [2024-02-07 19:20:56,701 INFO L76 edCorrectnessWitness]: Location invariant before [L113-L113] t22 == (_Bool)0 || t22 == (_Bool)1 [2024-02-07 19:20:56,701 INFO L76 edCorrectnessWitness]: Location invariant before [L119-L119] f22 == (_Bool)1 [2024-02-07 19:20:56,702 INFO L76 edCorrectnessWitness]: Location invariant before [L69-L69] t21 == (_Bool)0 || t21 == (_Bool)1 [2024-02-07 19:20:56,721 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:20:56,867 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c[3959,3972] [2024-02-07 19:20:56,871 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:20:56,884 INFO L206 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:20:56,945 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c[3959,3972] [2024-02-07 19:20:56,946 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:20:56,959 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:20:56,960 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56 WrapperNode [2024-02-07 19:20:56,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:20:56,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:20:56,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:20:56,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:20:56,966 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 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:56,973 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 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,013 INFO L138 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 227 [2024-02-07 19:20:57,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:20:57,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:20:57,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:20:57,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:20:57,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,051 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-02-07 19:20:57,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:20:57,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:20:57,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:20:57,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:20:57,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (1/1) ... [2024-02-07 19:20:57,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:20:57,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:20:57,114 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) [2024-02-07 19:20:57,132 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 [2024-02-07 19:20:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:20:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-07 19:20:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-07 19:20:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-07 19:20:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-07 19:20:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-07 19:20:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-07 19:20:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-07 19:20:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:20:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:20:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:20:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:20:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:20:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:20:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:20:57,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:20:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:20:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:20:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:20:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 19:20:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 19:20:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:20:57,158 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:20:57,272 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:20:57,273 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:20:57,588 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:20:57,589 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:20:57,842 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:20:57,842 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:20:57,843 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:20:57 BoogieIcfgContainer [2024-02-07 19:20:57,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:20:57,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:20:57,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:20:57,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:20:57,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:20:56" (1/4) ... [2024-02-07 19:20:57,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c871e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:20:57, skipping insertion in model container [2024-02-07 19:20:57,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:20:56" (2/4) ... [2024-02-07 19:20:57,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c871e2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:20:57, skipping insertion in model container [2024-02-07 19:20:57,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:56" (3/4) ... [2024-02-07 19:20:57,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c871e2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:20:57, skipping insertion in model container [2024-02-07 19:20:57,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:20:57" (4/4) ... [2024-02-07 19:20:57,868 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2024-02-07 19:20:57,881 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:20:57,881 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-02-07 19:20:57,881 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:20:57,937 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-07 19:20:57,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 87 transitions, 202 flow [2024-02-07 19:20:58,011 INFO L124 PetriNetUnfolderBase]: 0/83 cut-off events. [2024-02-07 19:20:58,011 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-07 19:20:58,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 83 events. 0/83 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 294 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-02-07 19:20:58,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 87 transitions, 202 flow [2024-02-07 19:20:58,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 82 transitions, 188 flow [2024-02-07 19:20:58,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:20:58,035 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;@496cb9f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:20:58,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2024-02-07 19:20:58,039 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:20:58,039 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-02-07 19:20:58,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:20:58,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:20:58,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:20:58,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-02-07 19:20:58,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:20:58,045 INFO L85 PathProgramCache]: Analyzing trace with hash 16216121, now seen corresponding path program 1 times [2024-02-07 19:20:58,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:20:58,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135286125] [2024-02-07 19:20:58,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:20:58,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:20:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:20:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:20:58,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:20:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135286125] [2024-02-07 19:20:58,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135286125] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:20:58,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:20:58,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:20:58,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506268583] [2024-02-07 19:20:58,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:20:58,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 19:20:58,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:20:58,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 19:20:58,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 19:20:58,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 87 [2024-02-07 19:20:58,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 82 transitions, 188 flow. Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-02-07 19:20:58,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:20:58,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 87 [2024-02-07 19:20:58,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:06,495 INFO L124 PetriNetUnfolderBase]: 107280/142511 cut-off events. [2024-02-07 19:21:06,495 INFO L125 PetriNetUnfolderBase]: For 5411/5411 co-relation queries the response was YES. [2024-02-07 19:21:06,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289326 conditions, 142511 events. 107280/142511 cut-off events. For 5411/5411 co-relation queries the response was YES. Maximal size of possible extension queue 3581. Compared 876190 event pairs, 107280 based on Foata normal form. 0/105777 useless extension candidates. Maximal degree in co-relation 266553. Up to 142418 conditions per place. [2024-02-07 19:21:07,159 INFO L140 encePairwiseOnDemand]: 67/87 looper letters, 57 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2024-02-07 19:21:07,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 62 transitions, 262 flow [2024-02-07 19:21:07,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 19:21:07,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 19:21:07,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 95 transitions. [2024-02-07 19:21:07,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5459770114942529 [2024-02-07 19:21:07,172 INFO L175 Difference]: Start difference. First operand has 95 places, 82 transitions, 188 flow. Second operand 2 states and 95 transitions. [2024-02-07 19:21:07,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 62 transitions, 262 flow [2024-02-07 19:21:07,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 246 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-07 19:21:07,326 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 132 flow [2024-02-07 19:21:07,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2024-02-07 19:21:07,330 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -27 predicate places. [2024-02-07 19:21:07,330 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 132 flow [2024-02-07 19:21:07,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-02-07 19:21:07,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:07,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 19:21:07,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:21:07,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-02-07 19:21:07,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:07,332 INFO L85 PathProgramCache]: Analyzing trace with hash 502700332, now seen corresponding path program 1 times [2024-02-07 19:21:07,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:07,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036566492] [2024-02-07 19:21:07,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:07,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:21:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:21:07,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:21:07,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036566492] [2024-02-07 19:21:07,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036566492] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:21:07,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:21:07,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:21:07,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27149053] [2024-02-07 19:21:07,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:21:07,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:21:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:21:07,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:21:07,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:21:07,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 87 [2024-02-07 19:21:07,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-02-07 19:21:07,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:21:07,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 87 [2024-02-07 19:21:07,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:12,746 INFO L124 PetriNetUnfolderBase]: 88646/118009 cut-off events. [2024-02-07 19:21:12,746 INFO L125 PetriNetUnfolderBase]: For 1275/1275 co-relation queries the response was YES. [2024-02-07 19:21:12,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237137 conditions, 118009 events. 88646/118009 cut-off events. For 1275/1275 co-relation queries the response was YES. Maximal size of possible extension queue 2968. Compared 714345 event pairs, 88646 based on Foata normal form. 0/91792 useless extension candidates. Maximal degree in co-relation 237134. Up to 117927 conditions per place. [2024-02-07 19:21:13,344 INFO L140 encePairwiseOnDemand]: 84/87 looper letters, 54 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2024-02-07 19:21:13,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 60 transitions, 238 flow [2024-02-07 19:21:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:21:13,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:21:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-02-07 19:21:13,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3218390804597701 [2024-02-07 19:21:13,346 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 132 flow. Second operand 3 states and 84 transitions. [2024-02-07 19:21:13,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 60 transitions, 238 flow [2024-02-07 19:21:13,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 60 transitions, 238 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:21:13,348 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 130 flow [2024-02-07 19:21:13,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2024-02-07 19:21:13,349 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -27 predicate places. [2024-02-07 19:21:13,349 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 130 flow [2024-02-07 19:21:13,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-02-07 19:21:13,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:13,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:21:13,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:21:13,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-02-07 19:21:13,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:13,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2058701551, now seen corresponding path program 1 times [2024-02-07 19:21:13,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:13,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538967259] [2024-02-07 19:21:13,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:21:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:21:13,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:21:13,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538967259] [2024-02-07 19:21:13,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538967259] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:21:13,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:21:13,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:21:13,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886060606] [2024-02-07 19:21:13,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:21:13,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:21:13,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:21:13,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:21:13,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:21:13,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 87 [2024-02-07 19:21:13,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-02-07 19:21:13,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:21:13,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 87 [2024-02-07 19:21:13,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:17,494 INFO L124 PetriNetUnfolderBase]: 68488/91505 cut-off events. [2024-02-07 19:21:17,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:21:17,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183934 conditions, 91505 events. 68488/91505 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2220. Compared 563962 event pairs, 18027 based on Foata normal form. 1066/72372 useless extension candidates. Maximal degree in co-relation 183930. Up to 75392 conditions per place. [2024-02-07 19:21:17,865 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 110 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-02-07 19:21:17,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 119 transitions, 481 flow [2024-02-07 19:21:17,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:21:17,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:21:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2024-02-07 19:21:17,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4367816091954023 [2024-02-07 19:21:17,867 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 130 flow. Second operand 4 states and 152 transitions. [2024-02-07 19:21:17,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 119 transitions, 481 flow [2024-02-07 19:21:17,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 119 transitions, 480 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:21:17,869 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 152 flow [2024-02-07 19:21:17,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-02-07 19:21:17,869 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -23 predicate places. [2024-02-07 19:21:17,870 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 152 flow [2024-02-07 19:21:17,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-02-07 19:21:17,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:17,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:21:17,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:21:17,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-02-07 19:21:17,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1996062001, now seen corresponding path program 1 times [2024-02-07 19:21:17,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:17,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306974256] [2024-02-07 19:21:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:17,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:21:17,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:21:17,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:21:17,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306974256] [2024-02-07 19:21:17,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306974256] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:21:17,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:21:17,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:21:17,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673368159] [2024-02-07 19:21:17,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:21:17,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:21:17,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:21:17,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:21:17,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:21:17,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 87 [2024-02-07 19:21:17,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-02-07 19:21:17,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:21:17,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 87 [2024-02-07 19:21:17,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:21:21,572 INFO L124 PetriNetUnfolderBase]: 57015/76340 cut-off events. [2024-02-07 19:21:21,572 INFO L125 PetriNetUnfolderBase]: For 6620/6620 co-relation queries the response was YES. [2024-02-07 19:21:21,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161959 conditions, 76340 events. 57015/76340 cut-off events. For 6620/6620 co-relation queries the response was YES. Maximal size of possible extension queue 1862. Compared 442540 event pairs, 55419 based on Foata normal form. 0/62015 useless extension candidates. Maximal degree in co-relation 161953. Up to 76298 conditions per place. [2024-02-07 19:21:22,122 INFO L140 encePairwiseOnDemand]: 84/87 looper letters, 54 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2024-02-07 19:21:22,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 60 transitions, 258 flow [2024-02-07 19:21:22,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:21:22,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:21:22,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-02-07 19:21:22,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31417624521072796 [2024-02-07 19:21:22,126 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 152 flow. Second operand 3 states and 82 transitions. [2024-02-07 19:21:22,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 60 transitions, 258 flow [2024-02-07 19:21:22,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 60 transitions, 255 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:21:22,133 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 147 flow [2024-02-07 19:21:22,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2024-02-07 19:21:22,134 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -24 predicate places. [2024-02-07 19:21:22,139 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 147 flow [2024-02-07 19:21:22,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-02-07 19:21:22,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:21:22,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:21:22,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:21:22,139 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-02-07 19:21:22,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:21:22,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1634778188, now seen corresponding path program 1 times [2024-02-07 19:21:22,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:21:22,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340462918] [2024-02-07 19:21:22,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:21:22,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:21:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:21:22,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 19:21:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:21:22,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 19:21:22,200 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 19:21:22,201 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 69 remaining) [2024-02-07 19:21:22,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 69 remaining) [2024-02-07 19:21:22,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 69 remaining) [2024-02-07 19:21:22,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 69 remaining) [2024-02-07 19:21:22,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 69 remaining) [2024-02-07 19:21:22,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 69 remaining) [2024-02-07 19:21:22,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 69 remaining) [2024-02-07 19:21:22,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 69 remaining) [2024-02-07 19:21:22,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 69 remaining) [2024-02-07 19:21:22,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 69 remaining) [2024-02-07 19:21:22,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 69 remaining) [2024-02-07 19:21:22,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 69 remaining) [2024-02-07 19:21:22,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 69 remaining) [2024-02-07 19:21:22,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 69 remaining) [2024-02-07 19:21:22,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 69 remaining) [2024-02-07 19:21:22,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 69 remaining) [2024-02-07 19:21:22,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 69 remaining) [2024-02-07 19:21:22,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 69 remaining) [2024-02-07 19:21:22,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 69 remaining) [2024-02-07 19:21:22,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 69 remaining) [2024-02-07 19:21:22,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 69 remaining) [2024-02-07 19:21:22,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 69 remaining) [2024-02-07 19:21:22,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 69 remaining) [2024-02-07 19:21:22,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 69 remaining) [2024-02-07 19:21:22,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err7ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 69 remaining) [2024-02-07 19:21:22,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (43 of 69 remaining) [2024-02-07 19:21:22,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 69 remaining) [2024-02-07 19:21:22,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 69 remaining) [2024-02-07 19:21:22,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 69 remaining) [2024-02-07 19:21:22,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 69 remaining) [2024-02-07 19:21:22,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 69 remaining) [2024-02-07 19:21:22,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 69 remaining) [2024-02-07 19:21:22,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 69 remaining) [2024-02-07 19:21:22,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 69 remaining) [2024-02-07 19:21:22,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 69 remaining) [2024-02-07 19:21:22,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 69 remaining) [2024-02-07 19:21:22,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err6ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 69 remaining) [2024-02-07 19:21:22,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err7ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 69 remaining) [2024-02-07 19:21:22,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 69 remaining) [2024-02-07 19:21:22,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 69 remaining) [2024-02-07 19:21:22,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 69 remaining) [2024-02-07 19:21:22,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 69 remaining) [2024-02-07 19:21:22,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 69 remaining) [2024-02-07 19:21:22,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 69 remaining) [2024-02-07 19:21:22,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 69 remaining) [2024-02-07 19:21:22,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 69 remaining) [2024-02-07 19:21:22,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 69 remaining) [2024-02-07 19:21:22,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 69 remaining) [2024-02-07 19:21:22,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 69 remaining) [2024-02-07 19:21:22,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 69 remaining) [2024-02-07 19:21:22,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 69 remaining) [2024-02-07 19:21:22,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 69 remaining) [2024-02-07 19:21:22,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 69 remaining) [2024-02-07 19:21:22,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 69 remaining) [2024-02-07 19:21:22,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 69 remaining) [2024-02-07 19:21:22,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 69 remaining) [2024-02-07 19:21:22,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 69 remaining) [2024-02-07 19:21:22,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 69 remaining) [2024-02-07 19:21:22,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 69 remaining) [2024-02-07 19:21:22,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 69 remaining) [2024-02-07 19:21:22,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 69 remaining) [2024-02-07 19:21:22,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 19:21:22,215 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-02-07 19:21:22,222 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:21:22,222 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:21:22,255 INFO L503 ceAbstractionStarter]: Automizer considered 32 witness invariants [2024-02-07 19:21:22,255 INFO L504 ceAbstractionStarter]: WitnessConsidered=32 [2024-02-07 19:21:22,256 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:21:22 BasicIcfg [2024-02-07 19:21:22,257 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:21:22,259 INFO L158 Benchmark]: Toolchain (without parser) took 25604.73ms. Allocated memory was 201.3MB in the beginning and 14.2GB in the end (delta: 14.0GB). Free memory was 165.9MB in the beginning and 11.9GB in the end (delta: -11.7GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-02-07 19:21:22,259 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory was 167.1MB in the beginning and 167.1MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:21:22,260 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:21:22,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.03ms. Allocated memory is still 201.3MB. Free memory was 165.9MB in the beginning and 146.3MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-02-07 19:21:22,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.87ms. Allocated memory is still 201.3MB. Free memory was 146.3MB in the beginning and 144.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:21:22,261 INFO L158 Benchmark]: Boogie Preprocessor took 69.49ms. Allocated memory is still 201.3MB. Free memory was 144.2MB in the beginning and 141.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:21:22,261 INFO L158 Benchmark]: RCFGBuilder took 759.53ms. Allocated memory is still 201.3MB. Free memory was 141.4MB in the beginning and 161.5MB in the end (delta: -20.1MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2024-02-07 19:21:22,262 INFO L158 Benchmark]: TraceAbstraction took 24410.06ms. Allocated memory was 201.3MB in the beginning and 14.2GB in the end (delta: 14.0GB). Free memory was 160.4MB in the beginning and 11.9GB in the end (delta: -11.7GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-02-07 19:21:22,263 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory was 167.1MB in the beginning and 167.1MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.03ms. Allocated memory is still 201.3MB. Free memory was 165.9MB in the beginning and 146.3MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.87ms. Allocated memory is still 201.3MB. Free memory was 146.3MB in the beginning and 144.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.49ms. Allocated memory is still 201.3MB. Free memory was 144.2MB in the beginning and 141.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 759.53ms. Allocated memory is still 201.3MB. Free memory was 141.4MB in the beginning and 161.5MB in the end (delta: -20.1MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. * TraceAbstraction took 24410.06ms. Allocated memory was 201.3MB in the beginning and 14.2GB in the end (delta: 14.0GB). Free memory was 160.4MB in the beginning and 11.9GB in the end (delta: -11.7GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 75]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x1, x2, y1, y2; [L39] 0 _Bool t11, t12, t21, t22, f11, f12, f21, f22; [L134] 0 pthread_t t1, t2, t3, t4; [L136] 0 x1 = __VERIFIER_nondet_uint() [L137] 0 x2 = __VERIFIER_nondet_uint() [L138] 0 y1 = __VERIFIER_nondet_uint() [L139] 0 y2 = __VERIFIER_nondet_uint() [L140] CALL 0 assume_abort_if_not(x1 == x2 && y1 == y2) [L35] COND FALSE 0 !(!cond) [L140] RET 0 assume_abort_if_not(x1 == x2 && y1 == y2) [L143] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [f11=0, f12=0, f21=0, f22=0, t11=0, t12=0, t1={6:0}, t21=0, t22=0, t2={3:0}, t3={5:0}, t4={7:0}, x1=0, x2=0, y1=0, y2=0] [L144] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [f11=0, f12=0, f21=0, f22=0, t11=0, t12=0, t1={6:0}, t21=0, t22=0, t2={3:0}, t3={5:0}, t4={7:0}, x1=0, x2=0, y1=0, y2=0] [L66] 2 t21 = y1 + 1 [L67] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[t21],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[t21],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [_argptr={0:0}, _argptr={0:0}, f11=0, f12=0, f21=0, f22=0, t11=0, t12=0, t21=1, t22=0, x1=0, x2=0, y1=0, y2=0] [L69] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[t21],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[t21],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] [L69] 2 y1 = t21 [L70] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IdentifierExpression[y1],IntegerLiteral[1U]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[y1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[y1],IntegerLiteral[1U]]]]]] VAL [_argptr={0:0}, _argptr={0:0}, f11=0, f12=0, f21=0, f22=0, t11=0, t12=0, t21=1, t22=0, x1=0, x2=0, y1=1, y2=0] [L72] 2 f21 = 1 [L73] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[f21],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]] VAL [_argptr={0:0}, _argptr={0:0}, f11=0, f12=0, f21=1, f22=0, t11=0, t12=0, t21=1, t22=0, x1=0, x2=0, y1=1, y2=0] [L75] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[f11],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[f21],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[f21],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]]] VAL [_argptr={0:0}, _argptr={0:0}, f11=0, f12=0, f21=1, f22=0, t11=0, t12=0, t21=1, t22=0, x1=0, x2=0, y1=1, y2=0] - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 96]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 98]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 153]: 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: 145]: 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: 143]: 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: 144]: 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: 146]: 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: 113]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 121]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 127]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 128]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 160 locations, 69 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: 24.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 0 mSDtfsCounter, 356 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 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! [2024-02-07 19:21:22,288 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