./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/chl-sre-symm.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/chl-sre-symm.wvr.c ./goblint.2024-06-19_11-23-25.files/protection/chl-sre-symm.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-7724a2d-m [2024-06-27 19:42:16,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:42:16,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:42:16,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:42:16,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:42:16,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:42:16,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:42:16,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:42:16,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:42:16,580 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:42:16,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:42:16,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:42:16,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:42:16,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:42:16,583 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:42:16,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:42:16,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:42:16,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:42:16,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:42:16,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:42:16,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:42:16,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:42:16,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:42:16,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:42:16,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:42:16,586 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:42:16,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:42:16,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:42:16,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:42:16,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:42:16,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:42:16,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:42:16,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:42:16,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:42:16,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:42:16,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:42:16,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:42:16,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:42:16,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:42:16,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:42:16,591 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:42:16,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:42:16,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:42:16,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:42:16,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:42:16,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:42:16,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:42:16,875 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:42:16,875 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:42:16,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2024-06-27 19:42:18,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:42:18,344 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:42:18,344 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2024-06-27 19:42:18,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/485470ac7/3a049384878d4941a5b78254b2850fab/FLAG4e4fabdd1 [2024-06-27 19:42:18,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/485470ac7/3a049384878d4941a5b78254b2850fab [2024-06-27 19:42:18,366 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:42:18,368 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:42:18,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/chl-sre-symm.wvr.yml/witness.yml [2024-06-27 19:42:18,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:42:18,462 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:42:18,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:42:18,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:42:18,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:42:18,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:42:18" (1/2) ... [2024-06-27 19:42:18,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbc8ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:18, skipping insertion in model container [2024-06-27 19:42:18,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:42:18" (1/2) ... [2024-06-27 19:42:18,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@748dc3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:18, skipping insertion in model container [2024-06-27 19:42:18,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:18" (2/2) ... [2024-06-27 19:42:18,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbc8ffe and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18, skipping insertion in model container [2024-06-27 19:42:18,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:18" (2/2) ... [2024-06-27 19:42:18,479 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:42:18,500 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:42:18,501 INFO L97 edCorrectnessWitness]: Location invariant before [L63-L63] (! multithreaded || ((result_3 == -1 || result_3 == 0) || result_3 == 1)) && (! multithreaded || ((result_2 == -1 || result_2 == 0) || result_2 == 1)) [2024-06-27 19:42:18,502 INFO L97 edCorrectnessWitness]: Location invariant before [L62-L62] (! multithreaded || ((result_3 == -1 || result_3 == 0) || result_3 == 1)) && (! multithreaded || ((result_2 == -1 || result_2 == 0) || result_2 == 1)) [2024-06-27 19:42:18,502 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:42:18,502 INFO L106 edCorrectnessWitness]: ghost_update [L61-L61] multithreaded = 1; [2024-06-27 19:42:18,521 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:42:18,723 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:42:18,733 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:42:18,791 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:42:18,805 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:42:18,806 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18 WrapperNode [2024-06-27 19:42:18,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:42:18,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:42:18,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:42:18,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:42:18,813 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 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,819 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 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,834 INFO L138 Inliner]: procedures = 20, calls = 12, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 58 [2024-06-27 19:42:18,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:42:18,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:42:18,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:42:18,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:42:18,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,858 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 19:42:18,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:42:18,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:42:18,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:42:18,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:42:18,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (1/1) ... [2024-06-27 19:42:18,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:42:18,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:42:18,895 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) [2024-06-27 19:42:18,908 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 [2024-06-27 19:42:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:42:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 19:42:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 19:42:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 19:42:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 19:42:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:42:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:42:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:42:18,938 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:42:19,031 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:42:19,044 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:42:19,216 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:42:19,216 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:42:19,318 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:42:19,319 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 19:42:19,319 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:42:19 BoogieIcfgContainer [2024-06-27 19:42:19,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:42:19,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:42:19,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:42:19,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:42:19,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:42:18" (1/4) ... [2024-06-27 19:42:19,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ea9d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:42:19, skipping insertion in model container [2024-06-27 19:42:19,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:18" (2/4) ... [2024-06-27 19:42:19,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ea9d98 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:42:19, skipping insertion in model container [2024-06-27 19:42:19,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:18" (3/4) ... [2024-06-27 19:42:19,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ea9d98 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:42:19, skipping insertion in model container [2024-06-27 19:42:19,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:42:19" (4/4) ... [2024-06-27 19:42:19,328 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2024-06-27 19:42:19,345 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:42:19,345 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 19:42:19,345 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:42:19,379 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-27 19:42:19,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 48 flow [2024-06-27 19:42:19,429 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-06-27 19:42:19,430 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 19:42:19,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-27 19:42:19,432 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 17 transitions, 48 flow [2024-06-27 19:42:19,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 11 transitions, 28 flow [2024-06-27 19:42:19,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:42:19,449 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;@352455dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:42:19,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-27 19:42:19,453 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:42:19,453 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 19:42:19,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:42:19,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:19,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 19:42:19,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:19,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash 196354048, now seen corresponding path program 1 times [2024-06-27 19:42:19,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:19,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854617142] [2024-06-27 19:42:19,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:19,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:19,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:19,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854617142] [2024-06-27 19:42:19,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854617142] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:19,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:19,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:42:19,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811501982] [2024-06-27 19:42:19,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:19,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:42:19,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:42:19,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:42:19,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-27 19:42:19,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-06-27 19:42:19,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:19,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-27 19:42:19,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:19,819 INFO L124 PetriNetUnfolderBase]: 10/30 cut-off events. [2024-06-27 19:42:19,820 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 19:42:19,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 30 events. 10/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 1 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 58. Up to 24 conditions per place. [2024-06-27 19:42:19,823 INFO L140 encePairwiseOnDemand]: 12/17 looper letters, 13 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2024-06-27 19:42:19,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 17 transitions, 75 flow [2024-06-27 19:42:19,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:19,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2024-06-27 19:42:19,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2024-06-27 19:42:19,837 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 28 flow. Second operand 3 states and 30 transitions. [2024-06-27 19:42:19,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 17 transitions, 75 flow [2024-06-27 19:42:19,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:42:19,843 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 47 flow [2024-06-27 19:42:19,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2024-06-27 19:42:19,876 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2024-06-27 19:42:19,876 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 47 flow [2024-06-27 19:42:19,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-06-27 19:42:19,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:19,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-27 19:42:19,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:42:19,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:19,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:19,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1792008581, now seen corresponding path program 1 times [2024-06-27 19:42:19,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:19,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486897223] [2024-06-27 19:42:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:19,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:20,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:20,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:20,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486897223] [2024-06-27 19:42:20,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486897223] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:20,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:20,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:42:20,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083900870] [2024-06-27 19:42:20,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:20,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:42:20,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:20,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:42:20,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:42:20,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-27 19:42:20,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:20,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:20,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-27 19:42:20,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:20,166 INFO L124 PetriNetUnfolderBase]: 9/27 cut-off events. [2024-06-27 19:42:20,167 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-27 19:42:20,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 27 events. 9/27 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 4 based on Foata normal form. 2/29 useless extension candidates. Maximal degree in co-relation 73. Up to 15 conditions per place. [2024-06-27 19:42:20,169 INFO L140 encePairwiseOnDemand]: 13/17 looper letters, 9 selfloop transitions, 3 changer transitions 0/13 dead transitions. [2024-06-27 19:42:20,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 13 transitions, 69 flow [2024-06-27 19:42:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2024-06-27 19:42:20,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49019607843137253 [2024-06-27 19:42:20,171 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 47 flow. Second operand 3 states and 25 transitions. [2024-06-27 19:42:20,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 13 transitions, 69 flow [2024-06-27 19:42:20,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:42:20,173 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 51 flow [2024-06-27 19:42:20,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2024-06-27 19:42:20,175 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2024-06-27 19:42:20,175 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 51 flow [2024-06-27 19:42:20,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:20,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:20,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:20,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:42:20,176 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:20,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:20,180 INFO L85 PathProgramCache]: Analyzing trace with hash -720859540, now seen corresponding path program 1 times [2024-06-27 19:42:20,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:20,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401351079] [2024-06-27 19:42:20,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:20,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:20,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:20,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401351079] [2024-06-27 19:42:20,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401351079] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:20,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:20,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:42:20,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23741268] [2024-06-27 19:42:20,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:20,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:42:20,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:20,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:42:20,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:42:20,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-27 19:42:20,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-06-27 19:42:20,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:20,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-27 19:42:20,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:20,398 INFO L124 PetriNetUnfolderBase]: 8/25 cut-off events. [2024-06-27 19:42:20,398 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-06-27 19:42:20,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 25 events. 8/25 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 1 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 69. Up to 16 conditions per place. [2024-06-27 19:42:20,400 INFO L140 encePairwiseOnDemand]: 14/17 looper letters, 12 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2024-06-27 19:42:20,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 16 transitions, 91 flow [2024-06-27 19:42:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2024-06-27 19:42:20,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2024-06-27 19:42:20,402 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 51 flow. Second operand 3 states and 27 transitions. [2024-06-27 19:42:20,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 16 transitions, 91 flow [2024-06-27 19:42:20,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 85 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:42:20,405 INFO L231 Difference]: Finished difference. Result has 21 places, 12 transitions, 56 flow [2024-06-27 19:42:20,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=21, PETRI_TRANSITIONS=12} [2024-06-27 19:42:20,407 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2024-06-27 19:42:20,407 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 12 transitions, 56 flow [2024-06-27 19:42:20,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-06-27 19:42:20,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:20,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:20,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:42:20,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:20,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash -871809591, now seen corresponding path program 1 times [2024-06-27 19:42:20,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:20,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610436596] [2024-06-27 19:42:20,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:20,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:21,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:21,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610436596] [2024-06-27 19:42:21,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610436596] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:21,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:21,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:42:21,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57142079] [2024-06-27 19:42:21,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:21,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:42:21,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:21,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:42:21,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:42:21,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-27 19:42:21,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 12 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-06-27 19:42:21,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:21,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-27 19:42:21,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:21,163 INFO L124 PetriNetUnfolderBase]: 7/26 cut-off events. [2024-06-27 19:42:21,163 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-06-27 19:42:21,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 26 events. 7/26 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 82. Up to 13 conditions per place. [2024-06-27 19:42:21,164 INFO L140 encePairwiseOnDemand]: 13/17 looper letters, 8 selfloop transitions, 3 changer transitions 6/18 dead transitions. [2024-06-27 19:42:21,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 104 flow [2024-06-27 19:42:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:42:21,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:42:21,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2024-06-27 19:42:21,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4470588235294118 [2024-06-27 19:42:21,166 INFO L175 Difference]: Start difference. First operand has 21 places, 12 transitions, 56 flow. Second operand 5 states and 38 transitions. [2024-06-27 19:42:21,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 104 flow [2024-06-27 19:42:21,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:42:21,167 INFO L231 Difference]: Finished difference. Result has 24 places, 10 transitions, 48 flow [2024-06-27 19:42:21,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=48, PETRI_PLACES=24, PETRI_TRANSITIONS=10} [2024-06-27 19:42:21,168 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2024-06-27 19:42:21,168 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 10 transitions, 48 flow [2024-06-27 19:42:21,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-06-27 19:42:21,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:21,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:21,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 19:42:21,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:21,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:21,170 INFO L85 PathProgramCache]: Analyzing trace with hash -871808661, now seen corresponding path program 2 times [2024-06-27 19:42:21,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:21,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126257379] [2024-06-27 19:42:21,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:21,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:21,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:21,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126257379] [2024-06-27 19:42:21,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126257379] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:21,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:21,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:42:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651743660] [2024-06-27 19:42:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:21,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:42:21,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:21,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:42:21,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:42:21,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-27 19:42:21,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 10 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-06-27 19:42:21,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:21,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-27 19:42:21,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:21,695 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2024-06-27 19:42:21,695 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-06-27 19:42:21,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 13 events. 2/13 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 43. Up to 6 conditions per place. [2024-06-27 19:42:21,696 INFO L140 encePairwiseOnDemand]: 13/17 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2024-06-27 19:42:21,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 11 transitions, 62 flow [2024-06-27 19:42:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:42:21,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:42:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2024-06-27 19:42:21,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36470588235294116 [2024-06-27 19:42:21,699 INFO L175 Difference]: Start difference. First operand has 24 places, 10 transitions, 48 flow. Second operand 5 states and 31 transitions. [2024-06-27 19:42:21,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 11 transitions, 62 flow [2024-06-27 19:42:21,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 11 transitions, 50 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-06-27 19:42:21,700 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2024-06-27 19:42:21,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2024-06-27 19:42:21,703 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2024-06-27 19:42:21,704 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2024-06-27 19:42:21,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-06-27 19:42:21,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-27 19:42:21,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-27 19:42:21,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-27 19:42:21,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-27 19:42:21,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 19:42:21,714 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-06-27 19:42:21,717 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:42:21,718 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:42:21,724 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-27 19:42:21,724 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-27 19:42:21,725 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:42:21 BasicIcfg [2024-06-27 19:42:21,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:42:21,730 INFO L158 Benchmark]: Toolchain (without parser) took 3267.86ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 77.5MB in the beginning and 111.7MB in the end (delta: -34.2MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2024-06-27 19:42:21,731 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:42:21,731 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:42:21,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.47ms. Allocated memory is still 151.0MB. Free memory was 77.3MB in the beginning and 63.3MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-27 19:42:21,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.23ms. Allocated memory is still 151.0MB. Free memory was 63.3MB in the beginning and 61.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:42:21,738 INFO L158 Benchmark]: Boogie Preprocessor took 32.56ms. Allocated memory is still 151.0MB. Free memory was 61.5MB in the beginning and 59.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:42:21,739 INFO L158 Benchmark]: RCFGBuilder took 451.07ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 59.8MB in the beginning and 162.2MB in the end (delta: -102.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-06-27 19:42:21,740 INFO L158 Benchmark]: TraceAbstraction took 2403.87ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 111.7MB in the end (delta: 49.4MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-06-27 19:42:21,741 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.47ms. Allocated memory is still 151.0MB. Free memory was 77.3MB in the beginning and 63.3MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.23ms. Allocated memory is still 151.0MB. Free memory was 63.3MB in the beginning and 61.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.56ms. Allocated memory is still 151.0MB. Free memory was 61.5MB in the beginning and 59.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.07ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 59.8MB in the beginning and 162.2MB in the end (delta: -102.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2403.87ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 111.7MB in the end (delta: 49.4MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 62]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 63]: 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 5 procedures, 24 locations, 4 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=3, InterpolantAutomatonStates: 19, 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, 1.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 19:42:21,767 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