./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe031_tso.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb4cb34f 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-wmm/safe031_tso.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe031_tso.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-eb4cb34-m [2024-06-21 18:13:58,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 18:13:58,364 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 18:13:58,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 18:13:58,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 18:13:58,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 18:13:58,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 18:13:58,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 18:13:58,393 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 18:13:58,396 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 18:13:58,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 18:13:58,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 18:13:58,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 18:13:58,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 18:13:58,398 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 18:13:58,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 18:13:58,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 18:13:58,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 18:13:58,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 18:13:58,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 18:13:58,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 18:13:58,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 18:13:58,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 18:13:58,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 18:13:58,400 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 18:13:58,400 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 18:13:58,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 18:13:58,400 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 18:13:58,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 18:13:58,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 18:13:58,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 18:13:58,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 18:13:58,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 18:13:58,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 18:13:58,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 18:13:58,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 18:13:58,403 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 18:13:58,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 18:13:58,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 18:13:58,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 18:13:58,403 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 18:13:58,404 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 18:13:58,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 18:13:58,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 18:13:58,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 18:13:58,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 18:13:58,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 18:13:58,674 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 18:13:58,674 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 18:13:58,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe031_tso.yml/witness.yml [2024-06-21 18:13:58,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 18:13:58,737 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 18:13:58,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2024-06-21 18:13:59,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 18:13:59,919 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 18:13:59,919 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2024-06-21 18:13:59,928 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f6cf794/1ff5cf6eb5bc4cfc97f634a66a3b0eb0/FLAG2ccecf3a0 [2024-06-21 18:13:59,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f6cf794/1ff5cf6eb5bc4cfc97f634a66a3b0eb0 [2024-06-21 18:13:59,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 18:13:59,941 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 18:13:59,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 18:13:59,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 18:13:59,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 18:13:59,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 06:13:58" (1/2) ... [2024-06-21 18:13:59,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb5ac0f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:13:59, skipping insertion in model container [2024-06-21 18:13:59,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 06:13:58" (1/2) ... [2024-06-21 18:13:59,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39910e87 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:13:59, skipping insertion in model container [2024-06-21 18:13:59,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 06:13:59" (2/2) ... [2024-06-21 18:13:59,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb5ac0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:13:59, skipping insertion in model container [2024-06-21 18:13:59,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 06:13:59" (2/2) ... [2024-06-21 18:13:59,952 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 18:13:59,972 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 18:13:59,973 INFO L97 edCorrectnessWitness]: Location invariant before [L784-L784] ! multithreaded || (0LL - (long long )__unbuffered_p0_EAX) + (long long )x >= 0LL [2024-06-21 18:13:59,973 INFO L97 edCorrectnessWitness]: Location invariant before [L783-L783] ! multithreaded || (0LL - (long long )__unbuffered_p0_EAX) + (long long )x >= 0LL [2024-06-21 18:13:59,973 INFO L97 edCorrectnessWitness]: Location invariant before [L781-L781] ! multithreaded || (0LL - (long long )__unbuffered_p0_EAX) + (long long )x >= 0LL [2024-06-21 18:13:59,973 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 18:13:59,974 INFO L106 edCorrectnessWitness]: ghost_update [L779-L779] multithreaded = 1; [2024-06-21 18:14:00,014 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 18:14:00,226 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 18:14:00,241 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-21 18:14:00,343 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 18:14:00,379 INFO L206 MainTranslator]: Completed translation [2024-06-21 18:14:00,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00 WrapperNode [2024-06-21 18:14:00,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 18:14:00,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 18:14:00,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 18:14:00,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 18:14:00,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,431 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-06-21 18:14:00,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 18:14:00,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 18:14:00,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 18:14:00,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 18:14:00,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,443 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,461 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-21 18:14:00,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 18:14:00,478 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 18:14:00,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 18:14:00,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 18:14:00,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (1/1) ... [2024-06-21 18:14:00,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 18:14:00,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 18:14:00,526 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) [2024-06-21 18:14:00,543 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 [2024-06-21 18:14:00,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-21 18:14:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 18:14:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-21 18:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-21 18:14:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-21 18:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-21 18:14:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-21 18:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-21 18:14:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 18:14:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-21 18:14:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 18:14:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 18:14:00,573 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-21 18:14:00,654 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 18:14:00,656 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 18:14:00,762 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 18:14:00,763 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 18:14:00,833 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 18:14:00,838 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-21 18:14:00,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 06:14:00 BoogieIcfgContainer [2024-06-21 18:14:00,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 18:14:00,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 18:14:00,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 18:14:00,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 18:14:00,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 06:13:58" (1/4) ... [2024-06-21 18:14:00,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744faa0c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 06:14:00, skipping insertion in model container [2024-06-21 18:14:00,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 06:13:59" (2/4) ... [2024-06-21 18:14:00,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744faa0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 06:14:00, skipping insertion in model container [2024-06-21 18:14:00,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:14:00" (3/4) ... [2024-06-21 18:14:00,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744faa0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 06:14:00, skipping insertion in model container [2024-06-21 18:14:00,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 06:14:00" (4/4) ... [2024-06-21 18:14:00,847 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2024-06-21 18:14:00,861 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 18:14:00,862 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-21 18:14:00,862 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 18:14:00,920 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-21 18:14:00,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2024-06-21 18:14:00,975 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-06-21 18:14:00,975 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 18:14:00,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-21 18:14:00,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2024-06-21 18:14:00,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-06-21 18:14:00,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 18:14:00,995 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;@5a5ffa97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 18:14:00,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-21 18:14:01,001 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 18:14:01,001 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-21 18:14:01,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 18:14:01,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:14:01,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-21 18:14:01,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:14:01,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:14:01,007 INFO L85 PathProgramCache]: Analyzing trace with hash 219931435, now seen corresponding path program 1 times [2024-06-21 18:14:01,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:14:01,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702832547] [2024-06-21 18:14:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:14:01,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:14:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:14:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:14:01,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:14:01,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702832547] [2024-06-21 18:14:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702832547] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:14:01,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:14:01,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 18:14:01,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966864881] [2024-06-21 18:14:01,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:14:01,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 18:14:01,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:14:01,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 18:14:01,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 18:14:01,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-06-21 18:14:01,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-06-21 18:14:01,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:14:01,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-06-21 18:14:01,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:14:01,368 INFO L124 PetriNetUnfolderBase]: 69/191 cut-off events. [2024-06-21 18:14:01,368 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-21 18:14:01,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 191 events. 69/191 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 988 event pairs, 17 based on Foata normal form. 4/172 useless extension candidates. Maximal degree in co-relation 332. Up to 99 conditions per place. [2024-06-21 18:14:01,373 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 19 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-06-21 18:14:01,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 128 flow [2024-06-21 18:14:01,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 18:14:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 18:14:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-06-21 18:14:01,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2024-06-21 18:14:01,384 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 3 states and 93 transitions. [2024-06-21 18:14:01,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 128 flow [2024-06-21 18:14:01,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 124 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-21 18:14:01,388 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 78 flow [2024-06-21 18:14:01,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2024-06-21 18:14:01,392 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -1 predicate places. [2024-06-21 18:14:01,392 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 78 flow [2024-06-21 18:14:01,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-06-21 18:14:01,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:14:01,393 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:14:01,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 18:14:01,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:14:01,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:14:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1617256469, now seen corresponding path program 1 times [2024-06-21 18:14:01,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:14:01,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886391606] [2024-06-21 18:14:01,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:14:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:14:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:14:01,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:14:01,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:14:01,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886391606] [2024-06-21 18:14:01,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886391606] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:14:01,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:14:01,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 18:14:01,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970947598] [2024-06-21 18:14:01,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:14:01,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 18:14:01,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:14:01,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 18:14:01,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 18:14:01,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 41 [2024-06-21 18:14:01,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-06-21 18:14:01,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:14:01,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 41 [2024-06-21 18:14:01,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:14:01,569 INFO L124 PetriNetUnfolderBase]: 107/285 cut-off events. [2024-06-21 18:14:01,569 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-06-21 18:14:01,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 285 events. 107/285 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1503 event pairs, 27 based on Foata normal form. 6/272 useless extension candidates. Maximal degree in co-relation 550. Up to 153 conditions per place. [2024-06-21 18:14:01,572 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 28 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2024-06-21 18:14:01,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 183 flow [2024-06-21 18:14:01,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 18:14:01,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 18:14:01,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-06-21 18:14:01,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7439024390243902 [2024-06-21 18:14:01,574 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 78 flow. Second operand 4 states and 122 transitions. [2024-06-21 18:14:01,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 183 flow [2024-06-21 18:14:01,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-21 18:14:01,575 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 98 flow [2024-06-21 18:14:01,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2024-06-21 18:14:01,576 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2024-06-21 18:14:01,576 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 98 flow [2024-06-21 18:14:01,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-06-21 18:14:01,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:14:01,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:14:01,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 18:14:01,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:14:01,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:14:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1813171287, now seen corresponding path program 1 times [2024-06-21 18:14:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:14:01,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945258123] [2024-06-21 18:14:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:14:01,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:14:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:14:01,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:14:01,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:14:01,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945258123] [2024-06-21 18:14:01,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945258123] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:14:01,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:14:01,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 18:14:01,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122725106] [2024-06-21 18:14:01,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:14:01,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 18:14:01,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:14:01,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 18:14:01,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 18:14:01,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 41 [2024-06-21 18:14:01,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-06-21 18:14:01,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:14:01,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 41 [2024-06-21 18:14:01,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:14:01,817 INFO L124 PetriNetUnfolderBase]: 135/363 cut-off events. [2024-06-21 18:14:01,818 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-06-21 18:14:01,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 363 events. 135/363 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2145 event pairs, 27 based on Foata normal form. 12/358 useless extension candidates. Maximal degree in co-relation 759. Up to 99 conditions per place. [2024-06-21 18:14:01,822 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 24 selfloop transitions, 3 changer transitions 4/46 dead transitions. [2024-06-21 18:14:01,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 46 transitions, 190 flow [2024-06-21 18:14:01,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 18:14:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 18:14:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2024-06-21 18:14:01,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7317073170731707 [2024-06-21 18:14:01,828 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 98 flow. Second operand 4 states and 120 transitions. [2024-06-21 18:14:01,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 46 transitions, 190 flow [2024-06-21 18:14:01,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 46 transitions, 187 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 18:14:01,832 INFO L231 Difference]: Finished difference. Result has 47 places, 31 transitions, 98 flow [2024-06-21 18:14:01,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=47, PETRI_TRANSITIONS=31} [2024-06-21 18:14:01,834 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2024-06-21 18:14:01,834 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 31 transitions, 98 flow [2024-06-21 18:14:01,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-06-21 18:14:01,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:14:01,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:14:01,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 18:14:01,835 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:14:01,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:14:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1921322835, now seen corresponding path program 2 times [2024-06-21 18:14:01,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:14:01,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209524221] [2024-06-21 18:14:01,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:14:01,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:14:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:14:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:14:01,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:14:01,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209524221] [2024-06-21 18:14:01,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209524221] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:14:01,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:14:01,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 18:14:01,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079358814] [2024-06-21 18:14:01,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:14:01,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 18:14:01,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:14:01,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 18:14:01,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 18:14:01,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 41 [2024-06-21 18:14:01,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-06-21 18:14:01,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:14:01,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 41 [2024-06-21 18:14:01,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:14:01,950 INFO L124 PetriNetUnfolderBase]: 57/169 cut-off events. [2024-06-21 18:14:01,950 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-06-21 18:14:01,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 169 events. 57/169 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 746 event pairs, 1 based on Foata normal form. 12/179 useless extension candidates. Maximal degree in co-relation 360. Up to 70 conditions per place. [2024-06-21 18:14:01,951 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-06-21 18:14:01,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 158 flow [2024-06-21 18:14:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 18:14:01,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 18:14:01,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2024-06-21 18:14:01,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7012195121951219 [2024-06-21 18:14:01,953 INFO L175 Difference]: Start difference. First operand has 47 places, 31 transitions, 98 flow. Second operand 4 states and 115 transitions. [2024-06-21 18:14:01,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 158 flow [2024-06-21 18:14:01,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 40 transitions, 142 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-06-21 18:14:01,954 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-06-21 18:14:01,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-06-21 18:14:01,955 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -2 predicate places. [2024-06-21 18:14:01,956 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-06-21 18:14:01,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-06-21 18:14:01,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-21 18:14:01,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-21 18:14:01,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-21 18:14:01,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-21 18:14:01,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-21 18:14:01,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-21 18:14:01,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-21 18:14:01,960 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-06-21 18:14:01,966 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-21 18:14:01,966 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-21 18:14:01,972 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-21 18:14:01,973 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-21 18:14:01,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 06:14:01 BasicIcfg [2024-06-21 18:14:01,974 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-21 18:14:01,975 INFO L158 Benchmark]: Toolchain (without parser) took 2033.81ms. Allocated memory is still 172.0MB. Free memory was 134.2MB in the beginning and 97.0MB in the end (delta: 37.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2024-06-21 18:14:01,975 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 18:14:01,975 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 109.1MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 18:14:01,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.32ms. Allocated memory is still 172.0MB. Free memory was 133.8MB in the beginning and 108.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-21 18:14:01,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.28ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 18:14:01,977 INFO L158 Benchmark]: Boogie Preprocessor took 44.66ms. Allocated memory is still 172.0MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 18:14:01,979 INFO L158 Benchmark]: RCFGBuilder took 360.73ms. Allocated memory is still 172.0MB. Free memory was 104.5MB in the beginning and 123.0MB in the end (delta: -18.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-21 18:14:01,981 INFO L158 Benchmark]: TraceAbstraction took 1134.29ms. Allocated memory is still 172.0MB. Free memory was 122.4MB in the beginning and 97.0MB in the end (delta: 25.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2024-06-21 18:14:01,986 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 109.1MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.32ms. Allocated memory is still 172.0MB. Free memory was 133.8MB in the beginning and 108.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.28ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.66ms. Allocated memory is still 172.0MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 360.73ms. Allocated memory is still 172.0MB. Free memory was 104.5MB in the beginning and 123.0MB in the end (delta: -18.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1134.29ms. Allocated memory is still 172.0MB. Free memory was 122.4MB in the beginning and 97.0MB in the end (delta: 25.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 781]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 783]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 784]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 67 locations, 6 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: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 223 IncrementalHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 7 mSDtfsCounter, 223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-21 18:14:02,010 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 Result: TRUE