./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/protection/popl20-bad-buffer-mult-alt.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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/popl20-bad-buffer-mult-alt.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/popl20-bad-buffer-mult-alt.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-76401ed-m [2024-06-20 17:34:47,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 17:34:47,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 17:34:47,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 17:34:47,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 17:34:47,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 17:34:47,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 17:34:47,585 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 17:34:47,586 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 17:34:47,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 17:34:47,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 17:34:47,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 17:34:47,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 17:34:47,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 17:34:47,591 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 17:34:47,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 17:34:47,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 17:34:47,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 17:34:47,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 17:34:47,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 17:34:47,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 17:34:47,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 17:34:47,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 17:34:47,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 17:34:47,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 17:34:47,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 17:34:47,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 17:34:47,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 17:34:47,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 17:34:47,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 17:34:47,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 17:34:47,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 17:34:47,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 17:34:47,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 17:34:47,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 17:34:47,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 17:34:47,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 17:34:47,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 17:34:47,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 17:34:47,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 17:34:47,598 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 17:34:47,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 17:34:47,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 17:34:47,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 17:34:47,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 17:34:47,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 17:34:47,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 17:34:47,800 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 17:34:47,801 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 17:34:47,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-06-20 17:34:48,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 17:34:48,956 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 17:34:48,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-06-20 17:34:48,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b565acc11/5f7c61175a1b422aaefee24828665167/FLAGd5197762d [2024-06-20 17:34:48,986 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b565acc11/5f7c61175a1b422aaefee24828665167 [2024-06-20 17:34:48,988 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 17:34:48,989 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 17:34:48,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/popl20-bad-buffer-mult-alt.wvr.yml/witness.yml [2024-06-20 17:34:49,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 17:34:49,055 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 17:34:49,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 17:34:49,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 17:34:49,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 17:34:49,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 05:34:48" (1/2) ... [2024-06-20 17:34:49,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d76a81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 05:34:49, skipping insertion in model container [2024-06-20 17:34:49,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 05:34:48" (1/2) ... [2024-06-20 17:34:49,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46e97d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 05:34:49, skipping insertion in model container [2024-06-20 17:34:49,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 05:34:49" (2/2) ... [2024-06-20 17:34:49,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d76a81a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49, skipping insertion in model container [2024-06-20 17:34:49,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 05:34:49" (2/2) ... [2024-06-20 17:34:49,063 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 17:34:49,078 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 17:34:49,084 INFO L97 edCorrectnessWitness]: Location invariant before [L146-L146] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-20 17:34:49,084 INFO L97 edCorrectnessWitness]: Location invariant before [L147-L147] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-20 17:34:49,084 INFO L97 edCorrectnessWitness]: Location invariant before [L148-L148] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-20 17:34:49,084 INFO L97 edCorrectnessWitness]: Location invariant before [L145-L145] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-20 17:34:49,084 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 17:34:49,085 INFO L106 edCorrectnessWitness]: ghost_update [L144-L144] multithreaded = 1; [2024-06-20 17:34:49,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 17:34:49,281 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 17:34:49,287 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 17:34:49,350 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 17:34:49,362 INFO L206 MainTranslator]: Completed translation [2024-06-20 17:34:49,364 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49 WrapperNode [2024-06-20 17:34:49,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 17:34:49,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 17:34:49,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 17:34:49,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 17:34:49,371 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 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,382 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 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,406 INFO L138 Inliner]: procedures = 25, calls = 60, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 320 [2024-06-20 17:34:49,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 17:34:49,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 17:34:49,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 17:34:49,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 17:34:49,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,418 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,430 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [6, 2]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 2 writes are split as follows [2, 0]. [2024-06-20 17:34:49,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 17:34:49,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 17:34:49,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 17:34:49,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 17:34:49,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (1/1) ... [2024-06-20 17:34:49,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 17:34:49,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 17:34:49,481 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) [2024-06-20 17:34:49,490 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 [2024-06-20 17:34:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 17:34:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-20 17:34:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-20 17:34:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-20 17:34:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-20 17:34:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-20 17:34:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-20 17:34:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-20 17:34:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-20 17:34:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 17:34:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 17:34:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-20 17:34:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-20 17:34:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-20 17:34:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-20 17:34:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-20 17:34:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 17:34:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 17:34:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-20 17:34:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-20 17:34:49,522 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 17:34:49,606 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 17:34:49,607 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 17:34:50,015 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 17:34:50,016 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 17:34:50,312 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 17:34:50,312 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-20 17:34:50,313 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 05:34:50 BoogieIcfgContainer [2024-06-20 17:34:50,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 17:34:50,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 17:34:50,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 17:34:50,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 17:34:50,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 05:34:48" (1/4) ... [2024-06-20 17:34:50,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3165e4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 05:34:50, skipping insertion in model container [2024-06-20 17:34:50,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 05:34:49" (2/4) ... [2024-06-20 17:34:50,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3165e4d7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 05:34:50, skipping insertion in model container [2024-06-20 17:34:50,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:34:49" (3/4) ... [2024-06-20 17:34:50,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3165e4d7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 05:34:50, skipping insertion in model container [2024-06-20 17:34:50,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 05:34:50" (4/4) ... [2024-06-20 17:34:50,321 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2024-06-20 17:34:50,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 17:34:50,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-20 17:34:50,338 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 17:34:50,397 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-20 17:34:50,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 57 transitions, 142 flow [2024-06-20 17:34:50,471 INFO L124 PetriNetUnfolderBase]: 6/53 cut-off events. [2024-06-20 17:34:50,472 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-20 17:34:50,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 53 events. 6/53 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-06-20 17:34:50,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 57 transitions, 142 flow [2024-06-20 17:34:50,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 51 transitions, 123 flow [2024-06-20 17:34:50,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 17:34:50,499 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;@2100222f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 17:34:50,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-20 17:34:50,504 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 17:34:50,505 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-06-20 17:34:50,505 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 17:34:50,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 17:34:50,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-20 17:34:50,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 17:34:50,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 17:34:50,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1576071364, now seen corresponding path program 1 times [2024-06-20 17:34:50,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 17:34:50,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195832055] [2024-06-20 17:34:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 17:34:50,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 17:34:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 17:34:50,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 17:34:50,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 17:34:50,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195832055] [2024-06-20 17:34:50,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195832055] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 17:34:50,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 17:34:50,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 17:34:50,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658068220] [2024-06-20 17:34:50,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 17:34:50,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 17:34:50,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 17:34:50,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 17:34:50,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 17:34:50,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-20 17:34:50,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-06-20 17:34:50,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 17:34:50,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-20 17:34:50,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 17:34:51,345 INFO L124 PetriNetUnfolderBase]: 3046/4720 cut-off events. [2024-06-20 17:34:51,346 INFO L125 PetriNetUnfolderBase]: For 223/223 co-relation queries the response was YES. [2024-06-20 17:34:51,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9055 conditions, 4720 events. 3046/4720 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 31151 event pairs, 743 based on Foata normal form. 81/4379 useless extension candidates. Maximal degree in co-relation 8387. Up to 3090 conditions per place. [2024-06-20 17:34:51,373 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 51 selfloop transitions, 3 changer transitions 2/74 dead transitions. [2024-06-20 17:34:51,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 74 transitions, 299 flow [2024-06-20 17:34:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 17:34:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 17:34:51,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2024-06-20 17:34:51,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2024-06-20 17:34:51,383 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 123 flow. Second operand 3 states and 126 transitions. [2024-06-20 17:34:51,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 74 transitions, 299 flow [2024-06-20 17:34:51,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 275 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-20 17:34:51,391 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 135 flow [2024-06-20 17:34:51,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2024-06-20 17:34:51,395 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2024-06-20 17:34:51,395 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 135 flow [2024-06-20 17:34:51,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-06-20 17:34:51,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 17:34:51,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 17:34:51,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 17:34:51,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 17:34:51,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 17:34:51,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1117442855, now seen corresponding path program 1 times [2024-06-20 17:34:51,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 17:34:51,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065770668] [2024-06-20 17:34:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 17:34:51,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 17:34:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 17:34:51,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 17:34:51,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 17:34:51,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065770668] [2024-06-20 17:34:51,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065770668] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 17:34:51,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 17:34:51,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 17:34:51,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96626217] [2024-06-20 17:34:51,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 17:34:51,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 17:34:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 17:34:51,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 17:34:51,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-20 17:34:51,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-20 17:34:51,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 135 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) [2024-06-20 17:34:51,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 17:34:51,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-20 17:34:51,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 17:34:52,105 INFO L124 PetriNetUnfolderBase]: 3327/5167 cut-off events. [2024-06-20 17:34:52,105 INFO L125 PetriNetUnfolderBase]: For 555/555 co-relation queries the response was YES. [2024-06-20 17:34:52,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10916 conditions, 5167 events. 3327/5167 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 35013 event pairs, 728 based on Foata normal form. 120/5011 useless extension candidates. Maximal degree in co-relation 2197. Up to 2412 conditions per place. [2024-06-20 17:34:52,131 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 67 selfloop transitions, 4 changer transitions 4/93 dead transitions. [2024-06-20 17:34:52,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 93 transitions, 380 flow [2024-06-20 17:34:52,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 17:34:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 17:34:52,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-06-20 17:34:52,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7324561403508771 [2024-06-20 17:34:52,133 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 135 flow. Second operand 4 states and 167 transitions. [2024-06-20 17:34:52,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 93 transitions, 380 flow [2024-06-20 17:34:52,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 93 transitions, 377 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 17:34:52,135 INFO L231 Difference]: Finished difference. Result has 56 places, 53 transitions, 150 flow [2024-06-20 17:34:52,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=56, PETRI_TRANSITIONS=53} [2024-06-20 17:34:52,136 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -2 predicate places. [2024-06-20 17:34:52,136 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 53 transitions, 150 flow [2024-06-20 17:34:52,136 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) [2024-06-20 17:34:52,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 17:34:52,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 17:34:52,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 17:34:52,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 17:34:52,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 17:34:52,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1360397167, now seen corresponding path program 1 times [2024-06-20 17:34:52,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 17:34:52,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340213599] [2024-06-20 17:34:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 17:34:52,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 17:34:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 17:34:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 17:34:52,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 17:34:52,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340213599] [2024-06-20 17:34:52,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340213599] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 17:34:52,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 17:34:52,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 17:34:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297319377] [2024-06-20 17:34:52,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 17:34:52,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 17:34:52,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 17:34:52,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 17:34:52,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-20 17:34:52,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-20 17:34:52,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-06-20 17:34:52,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 17:34:52,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-20 17:34:52,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 17:34:52,791 INFO L124 PetriNetUnfolderBase]: 3641/5781 cut-off events. [2024-06-20 17:34:52,792 INFO L125 PetriNetUnfolderBase]: For 1977/1977 co-relation queries the response was YES. [2024-06-20 17:34:52,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12727 conditions, 5781 events. 3641/5781 cut-off events. For 1977/1977 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 41161 event pairs, 987 based on Foata normal form. 117/5617 useless extension candidates. Maximal degree in co-relation 4980. Up to 2909 conditions per place. [2024-06-20 17:34:52,824 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 66 selfloop transitions, 4 changer transitions 6/94 dead transitions. [2024-06-20 17:34:52,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 94 transitions, 403 flow [2024-06-20 17:34:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 17:34:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 17:34:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-06-20 17:34:52,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2024-06-20 17:34:52,826 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 150 flow. Second operand 4 states and 166 transitions. [2024-06-20 17:34:52,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 94 transitions, 403 flow [2024-06-20 17:34:52,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 94 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-20 17:34:52,829 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 166 flow [2024-06-20 17:34:52,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-06-20 17:34:52,830 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 0 predicate places. [2024-06-20 17:34:52,830 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 166 flow [2024-06-20 17:34:52,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-06-20 17:34:52,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 17:34:52,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 17:34:52,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 17:34:52,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 17:34:52,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 17:34:52,831 INFO L85 PathProgramCache]: Analyzing trace with hash 871256848, now seen corresponding path program 1 times [2024-06-20 17:34:52,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 17:34:52,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124518569] [2024-06-20 17:34:52,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 17:34:52,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 17:34:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 17:34:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 17:34:52,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 17:34:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124518569] [2024-06-20 17:34:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124518569] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 17:34:52,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 17:34:52,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 17:34:52,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405628851] [2024-06-20 17:34:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 17:34:52,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 17:34:52,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 17:34:52,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 17:34:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-20 17:34:53,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-20 17:34:53,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-06-20 17:34:53,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 17:34:53,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-20 17:34:53,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 17:34:53,639 INFO L124 PetriNetUnfolderBase]: 4447/7094 cut-off events. [2024-06-20 17:34:53,639 INFO L125 PetriNetUnfolderBase]: For 3450/3450 co-relation queries the response was YES. [2024-06-20 17:34:53,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16110 conditions, 7094 events. 4447/7094 cut-off events. For 3450/3450 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 52030 event pairs, 978 based on Foata normal form. 117/6927 useless extension candidates. Maximal degree in co-relation 7705. Up to 2807 conditions per place. [2024-06-20 17:34:53,680 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 87 selfloop transitions, 4 changer transitions 5/114 dead transitions. [2024-06-20 17:34:53,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 114 transitions, 509 flow [2024-06-20 17:34:53,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-20 17:34:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-20 17:34:53,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2024-06-20 17:34:53,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7298245614035088 [2024-06-20 17:34:53,684 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 166 flow. Second operand 5 states and 208 transitions. [2024-06-20 17:34:53,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 114 transitions, 509 flow [2024-06-20 17:34:53,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 114 transitions, 503 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-20 17:34:53,693 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 175 flow [2024-06-20 17:34:53,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-06-20 17:34:53,695 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2024-06-20 17:34:53,695 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 175 flow [2024-06-20 17:34:53,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-06-20 17:34:53,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 17:34:53,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 17:34:53,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-20 17:34:53,696 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 17:34:53,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 17:34:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash 871263358, now seen corresponding path program 2 times [2024-06-20 17:34:53,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 17:34:53,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760406770] [2024-06-20 17:34:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 17:34:53,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 17:34:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 17:34:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 17:34:53,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 17:34:53,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760406770] [2024-06-20 17:34:53,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760406770] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 17:34:53,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 17:34:53,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 17:34:53,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171461514] [2024-06-20 17:34:53,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 17:34:53,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 17:34:53,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 17:34:53,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 17:34:53,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-20 17:34:53,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-20 17:34:53,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-06-20 17:34:53,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 17:34:53,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-20 17:34:53,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 17:34:54,361 INFO L124 PetriNetUnfolderBase]: 4087/6599 cut-off events. [2024-06-20 17:34:54,361 INFO L125 PetriNetUnfolderBase]: For 3864/3864 co-relation queries the response was YES. [2024-06-20 17:34:54,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14740 conditions, 6599 events. 4087/6599 cut-off events. For 3864/3864 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 48478 event pairs, 831 based on Foata normal form. 117/6470 useless extension candidates. Maximal degree in co-relation 11387. Up to 2342 conditions per place. [2024-06-20 17:34:54,381 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2024-06-20 17:34:54,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 111 transitions, 482 flow [2024-06-20 17:34:54,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-20 17:34:54,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-20 17:34:54,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions. [2024-06-20 17:34:54,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7192982456140351 [2024-06-20 17:34:54,383 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 175 flow. Second operand 5 states and 205 transitions. [2024-06-20 17:34:54,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 111 transitions, 482 flow [2024-06-20 17:34:54,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 111 transitions, 474 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-20 17:34:54,390 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2024-06-20 17:34:54,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2024-06-20 17:34:54,391 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 0 predicate places. [2024-06-20 17:34:54,391 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2024-06-20 17:34:54,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-06-20 17:34:54,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-20 17:34:54,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-20 17:34:54,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-20 17:34:54,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-20 17:34:54,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-20 17:34:54,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-20 17:34:54,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-20 17:34:54,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-20 17:34:54,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-20 17:34:54,395 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-06-20 17:34:54,397 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 17:34:54,397 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 17:34:54,400 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-20 17:34:54,400 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-20 17:34:54,401 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 05:34:54 BasicIcfg [2024-06-20 17:34:54,401 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 17:34:54,402 INFO L158 Benchmark]: Toolchain (without parser) took 5347.08ms. Allocated memory was 119.5MB in the beginning and 507.5MB in the end (delta: 388.0MB). Free memory was 87.7MB in the beginning and 139.4MB in the end (delta: -51.7MB). Peak memory consumption was 351.4MB. Max. memory is 16.1GB. [2024-06-20 17:34:54,402 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 17:34:54,402 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 17:34:54,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.56ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 87.7MB in the beginning and 105.3MB in the end (delta: -17.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-06-20 17:34:54,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.21ms. Allocated memory is still 148.9MB. Free memory was 105.3MB in the beginning and 102.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 17:34:54,403 INFO L158 Benchmark]: Boogie Preprocessor took 46.92ms. Allocated memory is still 148.9MB. Free memory was 102.6MB in the beginning and 99.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 17:34:54,404 INFO L158 Benchmark]: RCFGBuilder took 859.14ms. Allocated memory is still 148.9MB. Free memory was 99.0MB in the beginning and 67.9MB in the end (delta: 31.2MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2024-06-20 17:34:54,404 INFO L158 Benchmark]: TraceAbstraction took 4086.24ms. Allocated memory was 148.9MB in the beginning and 507.5MB in the end (delta: 358.6MB). Free memory was 66.9MB in the beginning and 139.4MB in the end (delta: -72.5MB). Peak memory consumption was 302.8MB. Max. memory is 16.1GB. [2024-06-20 17:34:54,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.56ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 87.7MB in the beginning and 105.3MB in the end (delta: -17.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.21ms. Allocated memory is still 148.9MB. Free memory was 105.3MB in the beginning and 102.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.92ms. Allocated memory is still 148.9MB. Free memory was 102.6MB in the beginning and 99.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 859.14ms. Allocated memory is still 148.9MB. Free memory was 99.0MB in the beginning and 67.9MB in the end (delta: 31.2MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4086.24ms. Allocated memory was 148.9MB in the beginning and 507.5MB in the end (delta: 358.6MB). Free memory was 66.9MB in the beginning and 139.4MB in the end (delta: -72.5MB). Peak memory consumption was 302.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 146]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 147]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 148]: 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 9 procedures, 82 locations, 8 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: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 413 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 952 IncrementalHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 13 mSDtfsCounter, 952 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 0.5s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 483 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-20 17:34:54,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE