./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 cde23df1 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-cde23df-m [2024-06-14 13:41:30,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 13:41:30,517 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 13:41:30,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 13:41:30,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 13:41:30,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 13:41:30,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 13:41:30,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 13:41:30,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 13:41:30,550 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 13:41:30,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 13:41:30,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 13:41:30,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 13:41:30,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 13:41:30,553 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 13:41:30,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 13:41:30,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 13:41:30,553 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 13:41:30,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 13:41:30,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 13:41:30,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 13:41:30,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 13:41:30,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 13:41:30,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 13:41:30,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 13:41:30,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 13:41:30,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 13:41:30,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 13:41:30,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 13:41:30,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 13:41:30,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 13:41:30,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 13:41:30,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 13:41:30,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 13:41:30,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 13:41:30,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 13:41:30,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 13:41:30,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 13:41:30,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 13:41:30,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 13:41:30,558 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 13:41:30,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 13:41:30,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 13:41:30,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 13:41:30,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 13:41:30,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 13:41:30,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 13:41:30,768 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 13:41:30,769 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 13:41:30,770 INFO L431 ainManager$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 [2024-06-14 13:41:30,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 13:41:30,857 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 13:41:30,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-06-14 13:41:31,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 13:41:32,020 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 13:41:32,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-06-14 13:41:32,026 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c644c4f13/442c073419144293821c3dbdae161c30/FLAGad941d68e [2024-06-14 13:41:32,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c644c4f13/442c073419144293821c3dbdae161c30 [2024-06-14 13:41:32,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 13:41:32,040 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 13:41:32,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 13:41:32,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 13:41:32,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 13:41:32,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 01:41:30" (1/2) ... [2024-06-14 13:41:32,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4ebc02 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 01:41:32, skipping insertion in model container [2024-06-14 13:41:32,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 01:41:30" (1/2) ... [2024-06-14 13:41:32,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fa784c1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 01:41:32, skipping insertion in model container [2024-06-14 13:41:32,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 01:41:32" (2/2) ... [2024-06-14 13:41:32,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4ebc02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32, skipping insertion in model container [2024-06-14 13:41:32,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 01:41:32" (2/2) ... [2024-06-14 13:41:32,050 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 13:41:32,072 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 13:41:32,076 INFO L97 edCorrectnessWitness]: Location invariant before [L147-L147] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-14 13:41:32,076 INFO L97 edCorrectnessWitness]: Location invariant before [L148-L148] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-14 13:41:32,076 INFO L97 edCorrectnessWitness]: Location invariant before [L146-L146] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-14 13:41:32,076 INFO L97 edCorrectnessWitness]: Location invariant before [L145-L145] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-14 13:41:32,077 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 13:41:32,077 INFO L106 edCorrectnessWitness]: ghost_update [L144-L144] multithreaded = 1; [2024-06-14 13:41:32,097 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 13:41:32,249 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 13:41:32,255 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 13:41:32,307 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 13:41:32,330 INFO L206 MainTranslator]: Completed translation [2024-06-14 13:41:32,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32 WrapperNode [2024-06-14 13:41:32,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 13:41:32,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 13:41:32,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 13:41:32,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 13:41:32,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,364 INFO L138 Inliner]: procedures = 25, calls = 60, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 320 [2024-06-14 13:41:32,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 13:41:32,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 13:41:32,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 13:41:32,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 13:41:32,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,396 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-14 13:41:32,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 13:41:32,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 13:41:32,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 13:41:32,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 13:41:32,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (1/1) ... [2024-06-14 13:41:32,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 13:41:32,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 13:41:32,452 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) [2024-06-14 13:41:32,460 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 [2024-06-14 13:41:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 13:41:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 13:41:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 13:41:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 13:41:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 13:41:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 13:41:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 13:41:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-14 13:41:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-14 13:41:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 13:41:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 13:41:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 13:41:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 13:41:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 13:41:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 13:41:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 13:41:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 13:41:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 13:41:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 13:41:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 13:41:32,494 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 13:41:32,615 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 13:41:32,617 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 13:41:33,047 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 13:41:33,048 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 13:41:33,291 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 13:41:33,291 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-14 13:41:33,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 01:41:33 BoogieIcfgContainer [2024-06-14 13:41:33,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 13:41:33,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 13:41:33,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 13:41:33,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 13:41:33,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 01:41:30" (1/4) ... [2024-06-14 13:41:33,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f69996 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 01:41:33, skipping insertion in model container [2024-06-14 13:41:33,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 01:41:32" (2/4) ... [2024-06-14 13:41:33,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f69996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 01:41:33, skipping insertion in model container [2024-06-14 13:41:33,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 01:41:32" (3/4) ... [2024-06-14 13:41:33,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f69996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 01:41:33, skipping insertion in model container [2024-06-14 13:41:33,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 01:41:33" (4/4) ... [2024-06-14 13:41:33,300 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2024-06-14 13:41:33,314 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 13:41:33,314 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-14 13:41:33,314 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 13:41:33,379 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-14 13:41:33,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 58 transitions, 144 flow [2024-06-14 13:41:33,444 INFO L124 PetriNetUnfolderBase]: 6/54 cut-off events. [2024-06-14 13:41:33,444 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-14 13:41:33,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 54 events. 6/54 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. 0/44 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-06-14 13:41:33,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 58 transitions, 144 flow [2024-06-14 13:41:33,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 52 transitions, 125 flow [2024-06-14 13:41:33,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 13:41:33,460 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;@51e3673b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 13:41:33,461 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-14 13:41:33,464 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 13:41:33,464 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-06-14 13:41:33,464 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 13:41:33,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 13:41:33,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 13:41:33,465 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)] === [2024-06-14 13:41:33,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 13:41:33,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1610162082, now seen corresponding path program 1 times [2024-06-14 13:41:33,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 13:41:33,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733704090] [2024-06-14 13:41:33,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 13:41:33,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 13:41:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 13:41:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 13:41:33,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 13:41:33,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733704090] [2024-06-14 13:41:33,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733704090] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 13:41:33,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 13:41:33,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 13:41:33,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140479291] [2024-06-14 13:41:33,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 13:41:33,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 13:41:33,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 13:41:33,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 13:41:33,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 13:41:33,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-06-14 13:41:33,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-06-14 13:41:33,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 13:41:33,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-06-14 13:41:33,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 13:41:34,444 INFO L124 PetriNetUnfolderBase]: 3046/4721 cut-off events. [2024-06-14 13:41:34,445 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2024-06-14 13:41:34,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9058 conditions, 4721 events. 3046/4721 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 31103 event pairs, 743 based on Foata normal form. 81/4389 useless extension candidates. Maximal degree in co-relation 8387. Up to 3090 conditions per place. [2024-06-14 13:41:34,479 INFO L140 encePairwiseOnDemand]: 51/58 looper letters, 53 selfloop transitions, 3 changer transitions 2/75 dead transitions. [2024-06-14 13:41:34,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 305 flow [2024-06-14 13:41:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 13:41:34,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 13:41:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-06-14 13:41:34,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7183908045977011 [2024-06-14 13:41:34,493 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 125 flow. Second operand 3 states and 125 transitions. [2024-06-14 13:41:34,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 305 flow [2024-06-14 13:41:34,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 281 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-14 13:41:34,507 INFO L231 Difference]: Finished difference. Result has 55 places, 54 transitions, 137 flow [2024-06-14 13:41:34,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=55, PETRI_TRANSITIONS=54} [2024-06-14 13:41:34,515 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2024-06-14 13:41:34,515 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 54 transitions, 137 flow [2024-06-14 13:41:34,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-06-14 13:41:34,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 13:41:34,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 13:41:34,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 13:41:34,517 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)] === [2024-06-14 13:41:34,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 13:41:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1062420233, now seen corresponding path program 1 times [2024-06-14 13:41:34,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 13:41:34,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062663129] [2024-06-14 13:41:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 13:41:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 13:41:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 13:41:34,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 13:41:34,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 13:41:34,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062663129] [2024-06-14 13:41:34,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062663129] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 13:41:34,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 13:41:34,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 13:41:34,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129457764] [2024-06-14 13:41:34,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 13:41:34,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 13:41:34,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 13:41:34,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 13:41:34,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 13:41:34,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-06-14 13:41:34,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 54 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-06-14 13:41:34,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 13:41:34,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-06-14 13:41:34,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 13:41:35,220 INFO L124 PetriNetUnfolderBase]: 3327/5168 cut-off events. [2024-06-14 13:41:35,220 INFO L125 PetriNetUnfolderBase]: For 555/555 co-relation queries the response was YES. [2024-06-14 13:41:35,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10919 conditions, 5168 events. 3327/5168 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 35007 event pairs, 728 based on Foata normal form. 120/5021 useless extension candidates. Maximal degree in co-relation 2200. Up to 2412 conditions per place. [2024-06-14 13:41:35,244 INFO L140 encePairwiseOnDemand]: 51/58 looper letters, 69 selfloop transitions, 4 changer transitions 4/94 dead transitions. [2024-06-14 13:41:35,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 94 transitions, 386 flow [2024-06-14 13:41:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 13:41:35,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 13:41:35,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 165 transitions. [2024-06-14 13:41:35,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7112068965517241 [2024-06-14 13:41:35,247 INFO L175 Difference]: Start difference. First operand has 55 places, 54 transitions, 137 flow. Second operand 4 states and 165 transitions. [2024-06-14 13:41:35,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 94 transitions, 386 flow [2024-06-14 13:41:35,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 94 transitions, 383 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 13:41:35,249 INFO L231 Difference]: Finished difference. Result has 57 places, 54 transitions, 152 flow [2024-06-14 13:41:35,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=53, 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=152, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2024-06-14 13:41:35,250 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -2 predicate places. [2024-06-14 13:41:35,250 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 152 flow [2024-06-14 13:41:35,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-06-14 13:41:35,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 13:41:35,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 13:41:35,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 13:41:35,251 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)] === [2024-06-14 13:41:35,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 13:41:35,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1435995059, now seen corresponding path program 1 times [2024-06-14 13:41:35,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 13:41:35,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246439583] [2024-06-14 13:41:35,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 13:41:35,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 13:41:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 13:41:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 13:41:35,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 13:41:35,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246439583] [2024-06-14 13:41:35,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246439583] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 13:41:35,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 13:41:35,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 13:41:35,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911184384] [2024-06-14 13:41:35,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 13:41:35,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 13:41:35,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 13:41:35,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 13:41:35,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 13:41:35,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-06-14 13:41:35,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 152 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) [2024-06-14 13:41:35,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 13:41:35,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-06-14 13:41:35,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 13:41:35,909 INFO L124 PetriNetUnfolderBase]: 3641/5782 cut-off events. [2024-06-14 13:41:35,909 INFO L125 PetriNetUnfolderBase]: For 1977/1977 co-relation queries the response was YES. [2024-06-14 13:41:35,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12730 conditions, 5782 events. 3641/5782 cut-off events. For 1977/1977 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 41138 event pairs, 987 based on Foata normal form. 117/5627 useless extension candidates. Maximal degree in co-relation 4983. Up to 2909 conditions per place. [2024-06-14 13:41:35,937 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 68 selfloop transitions, 4 changer transitions 6/95 dead transitions. [2024-06-14 13:41:35,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 95 transitions, 409 flow [2024-06-14 13:41:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 13:41:35,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 13:41:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions. [2024-06-14 13:41:35,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7068965517241379 [2024-06-14 13:41:35,941 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 152 flow. Second operand 4 states and 164 transitions. [2024-06-14 13:41:35,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 95 transitions, 409 flow [2024-06-14 13:41:35,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 403 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 13:41:35,946 INFO L231 Difference]: Finished difference. Result has 59 places, 55 transitions, 168 flow [2024-06-14 13:41:35,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2024-06-14 13:41:35,947 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places. [2024-06-14 13:41:35,947 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 168 flow [2024-06-14 13:41:35,948 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) [2024-06-14 13:41:35,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 13:41:35,948 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, 1] [2024-06-14 13:41:35,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 13:41:35,948 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)] === [2024-06-14 13:41:35,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 13:41:35,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2004204786, now seen corresponding path program 1 times [2024-06-14 13:41:35,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 13:41:35,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079298307] [2024-06-14 13:41:35,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 13:41:35,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 13:41:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 13:41:36,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 13:41:36,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 13:41:36,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079298307] [2024-06-14 13:41:36,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079298307] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 13:41:36,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 13:41:36,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 13:41:36,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611757567] [2024-06-14 13:41:36,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 13:41:36,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 13:41:36,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 13:41:36,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 13:41:36,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-14 13:41:36,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-06-14 13:41:36,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-06-14 13:41:36,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 13:41:36,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-06-14 13:41:36,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 13:41:36,732 INFO L124 PetriNetUnfolderBase]: 4447/7095 cut-off events. [2024-06-14 13:41:36,732 INFO L125 PetriNetUnfolderBase]: For 3450/3450 co-relation queries the response was YES. [2024-06-14 13:41:36,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16113 conditions, 7095 events. 4447/7095 cut-off events. For 3450/3450 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 51936 event pairs, 978 based on Foata normal form. 117/6937 useless extension candidates. Maximal degree in co-relation 7708. Up to 2807 conditions per place. [2024-06-14 13:41:36,764 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 89 selfloop transitions, 4 changer transitions 5/115 dead transitions. [2024-06-14 13:41:36,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 115 transitions, 515 flow [2024-06-14 13:41:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 13:41:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 13:41:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions. [2024-06-14 13:41:36,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7068965517241379 [2024-06-14 13:41:36,766 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 168 flow. Second operand 5 states and 205 transitions. [2024-06-14 13:41:36,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 115 transitions, 515 flow [2024-06-14 13:41:36,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 115 transitions, 509 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 13:41:36,772 INFO L231 Difference]: Finished difference. Result has 62 places, 55 transitions, 177 flow [2024-06-14 13:41:36,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2024-06-14 13:41:36,773 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2024-06-14 13:41:36,773 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 177 flow [2024-06-14 13:41:36,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-06-14 13:41:36,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 13:41:36,774 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, 1] [2024-06-14 13:41:36,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 13:41:36,774 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)] === [2024-06-14 13:41:36,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 13:41:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2004211296, now seen corresponding path program 2 times [2024-06-14 13:41:36,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 13:41:36,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665844583] [2024-06-14 13:41:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 13:41:36,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 13:41:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 13:41:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 13:41:36,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 13:41:36,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665844583] [2024-06-14 13:41:36,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665844583] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 13:41:36,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 13:41:36,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 13:41:36,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800544245] [2024-06-14 13:41:36,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 13:41:36,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 13:41:36,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 13:41:36,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 13:41:36,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-14 13:41:36,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-06-14 13:41:36,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-06-14 13:41:36,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 13:41:36,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-06-14 13:41:36,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 13:41:37,485 INFO L124 PetriNetUnfolderBase]: 4087/6600 cut-off events. [2024-06-14 13:41:37,485 INFO L125 PetriNetUnfolderBase]: For 3864/3864 co-relation queries the response was YES. [2024-06-14 13:41:37,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14743 conditions, 6600 events. 4087/6600 cut-off events. For 3864/3864 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 48459 event pairs, 831 based on Foata normal form. 117/6480 useless extension candidates. Maximal degree in co-relation 11390. Up to 2342 conditions per place. [2024-06-14 13:41:37,498 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 0 selfloop transitions, 0 changer transitions 112/112 dead transitions. [2024-06-14 13:41:37,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 112 transitions, 488 flow [2024-06-14 13:41:37,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 13:41:37,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 13:41:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 202 transitions. [2024-06-14 13:41:37,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.696551724137931 [2024-06-14 13:41:37,500 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 177 flow. Second operand 5 states and 202 transitions. [2024-06-14 13:41:37,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 112 transitions, 488 flow [2024-06-14 13:41:37,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 112 transitions, 480 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-14 13:41:37,506 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2024-06-14 13:41:37,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2024-06-14 13:41:37,507 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places. [2024-06-14 13:41:37,507 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2024-06-14 13:41:37,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-06-14 13:41:37,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-14 13:41:37,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-14 13:41:37,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-14 13:41:37,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-14 13:41:37,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-14 13:41:37,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-14 13:41:37,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-14 13:41:37,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-14 13:41:37,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 13:41:37,511 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-06-14 13:41:37,513 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 13:41:37,513 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 13:41:37,516 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-14 13:41:37,516 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-14 13:41:37,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 01:41:37 BasicIcfg [2024-06-14 13:41:37,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 13:41:37,518 INFO L158 Benchmark]: Toolchain (without parser) took 5478.04ms. Allocated memory was 144.7MB in the beginning and 555.7MB in the end (delta: 411.0MB). Free memory was 81.2MB in the beginning and 431.2MB in the end (delta: -350.0MB). Peak memory consumption was 380.9MB. Max. memory is 16.1GB. [2024-06-14 13:41:37,518 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 59.8MB in the beginning and 59.8MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 13:41:37,518 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 94.4MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 13:41:37,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.58ms. Allocated memory is still 144.7MB. Free memory was 80.8MB in the beginning and 64.4MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-14 13:41:37,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 144.7MB. Free memory was 64.4MB in the beginning and 61.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 13:41:37,519 INFO L158 Benchmark]: Boogie Preprocessor took 59.74ms. Allocated memory is still 144.7MB. Free memory was 61.6MB in the beginning and 58.1MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 13:41:37,519 INFO L158 Benchmark]: RCFGBuilder took 867.43ms. Allocated memory is still 144.7MB. Free memory was 58.1MB in the beginning and 102.5MB in the end (delta: -44.4MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2024-06-14 13:41:37,520 INFO L158 Benchmark]: TraceAbstraction took 4223.27ms. Allocated memory was 144.7MB in the beginning and 555.7MB in the end (delta: 411.0MB). Free memory was 101.7MB in the beginning and 431.2MB in the end (delta: -329.5MB). Peak memory consumption was 398.9MB. Max. memory is 16.1GB. [2024-06-14 13:41:37,521 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 94.4MB. Free memory was 59.8MB in the beginning and 59.8MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.43ms. Allocated memory is still 94.4MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.58ms. Allocated memory is still 144.7MB. Free memory was 80.8MB in the beginning and 64.4MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 144.7MB. Free memory was 64.4MB in the beginning and 61.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.74ms. Allocated memory is still 144.7MB. Free memory was 61.6MB in the beginning and 58.1MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 867.43ms. Allocated memory is still 144.7MB. Free memory was 58.1MB in the beginning and 102.5MB in the end (delta: -44.4MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4223.27ms. Allocated memory was 144.7MB in the beginning and 555.7MB in the end (delta: 411.0MB). Free memory was 101.7MB in the beginning and 431.2MB in the end (delta: -329.5MB). Peak memory consumption was 398.9MB. 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, 83 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: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 423 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1021 IncrementalHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 23 mSDtfsCounter, 1021 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=177occurred 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, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 518 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! [2024-06-14 13:41:37,545 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