./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_38-traces-ex-4-switch_true.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/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_38-traces-ex-4-switch_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 18:01:29,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:01:29,349 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:01:29,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:01:29,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:01:29,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:01:29,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:01:29,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:01:29,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:01:29,380 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:01:29,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:01:29,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:01:29,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:01:29,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:01:29,382 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:01:29,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:01:29,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:01:29,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:01:29,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:01:29,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:01:29,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:01:29,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:01:29,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:01:29,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:01:29,384 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:01:29,384 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:01:29,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:01:29,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:01:29,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:01:29,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:01:29,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:01:29,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:01:29,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:29,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:01:29,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:01:29,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:01:29,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:01:29,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:01:29,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:01:29,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:01:29,388 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:01:29,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:01:29,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:01:29,389 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:01:29,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:01:29,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:01:29,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:01:29,600 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:01:29,600 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:01:29,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2024-06-27 18:01:30,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:01:30,861 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:01:30,862 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2024-06-27 18:01:30,883 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c47b869d/299b6d1840134a0e8b028e83cece957e/FLAG9be082f1c [2024-06-27 18:01:30,894 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c47b869d/299b6d1840134a0e8b028e83cece957e [2024-06-27 18:01:30,896 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:01:30,896 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:01:30,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/13-privatized_38-traces-ex-4-switch_true.yml/witness.yml [2024-06-27 18:01:31,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:01:31,017 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:01:31,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:31,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:01:31,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:01:31,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:30" (1/2) ... [2024-06-27 18:01:31,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205ecda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31, skipping insertion in model container [2024-06-27 18:01:31,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:30" (1/2) ... [2024-06-27 18:01:31,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@33e9a154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31, skipping insertion in model container [2024-06-27 18:01:31,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:31" (2/2) ... [2024-06-27 18:01:31,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205ecda2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:31, skipping insertion in model container [2024-06-27 18:01:31,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:31" (2/2) ... [2024-06-27 18:01:31,064 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:01:31,098 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:01:31,099 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ! multithreaded || (g == 1 || g == 2) [2024-06-27 18:01:31,099 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:01:31,100 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-27 18:01:31,100 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-27 18:01:31,100 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] A_locked = 0; [2024-06-27 18:01:31,100 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-27 18:01:31,100 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-06-27 18:01:31,100 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] A_locked = 1; [2024-06-27 18:01:31,100 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] A_locked = 0; [2024-06-27 18:01:31,100 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] B_locked = 0; [2024-06-27 18:01:31,101 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] A_locked = 0; [2024-06-27 18:01:31,101 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-06-27 18:01:31,101 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] B_locked = 0; [2024-06-27 18:01:31,101 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] A_locked = 1; [2024-06-27 18:01:31,101 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] B_locked = 1; [2024-06-27 18:01:31,137 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:01:31,265 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i[1095,1108] [2024-06-27 18:01:31,374 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:31,386 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:01:31,420 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i[1095,1108] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:01:31,466 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:31,504 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:01:31,505 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:31 WrapperNode [2024-06-27 18:01:31,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:31,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:31,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:01:31,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:01:31,511 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,520 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,534 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2024-06-27 18:01:31,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:31,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:01:31,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:01:31,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:01:31,545 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,545 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,547 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,557 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-27 18:01:31,557 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,557 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,561 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,562 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,563 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,564 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:01:31,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:01:31,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:01:31,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:01:31,567 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 06:01:31" (1/1) ... [2024-06-27 18:01:31,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:31,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:01:31,598 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 18:01:31,600 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 18:01:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 18:01:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:01:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-27 18:01:31,624 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-27 18:01:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:01:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 18:01:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 18:01:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 18:01:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:01:31,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:01:31,626 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 18:01:31,758 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:01:31,761 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:01:31,883 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:01:31,883 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:01:32,001 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:01:32,002 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:01:32,002 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:32 BoogieIcfgContainer [2024-06-27 18:01:32,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:01:32,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:01:32,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:01:32,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:01:32,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:01:30" (1/4) ... [2024-06-27 18:01:32,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5e625c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:01:32, skipping insertion in model container [2024-06-27 18:01:32,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:31" (2/4) ... [2024-06-27 18:01:32,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5e625c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:01:32, skipping insertion in model container [2024-06-27 18:01:32,008 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 06:01:31" (3/4) ... [2024-06-27 18:01:32,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5e625c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:01:32, skipping insertion in model container [2024-06-27 18:01:32,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:32" (4/4) ... [2024-06-27 18:01:32,009 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_38-traces-ex-4-switch_true.i [2024-06-27 18:01:32,022 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:01:32,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 18:01:32,023 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:01:32,055 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:01:32,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 70 flow [2024-06-27 18:01:32,129 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-06-27 18:01:32,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:32,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-06-27 18:01:32,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 70 flow [2024-06-27 18:01:32,137 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 53 flow [2024-06-27 18:01:32,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:01:32,162 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;@24cb7f5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:01:32,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-06-27 18:01:32,167 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:01:32,167 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 18:01:32,167 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:32,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:32,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:01:32,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:32,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:32,174 INFO L85 PathProgramCache]: Analyzing trace with hash 212975802, now seen corresponding path program 1 times [2024-06-27 18:01:32,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:32,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615630352] [2024-06-27 18:01:32,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:32,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:32,367 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 18:01:32,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:32,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615630352] [2024-06-27 18:01:32,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615630352] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:32,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:32,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:01:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032035579] [2024-06-27 18:01:32,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:32,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:32,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:32,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:32,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-27 18:01:32,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 18:01:32,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:32,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-27 18:01:32,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:32,501 INFO L124 PetriNetUnfolderBase]: 38/124 cut-off events. [2024-06-27 18:01:32,501 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 18:01:32,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 124 events. 38/124 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 430 event pairs, 26 based on Foata normal form. 7/128 useless extension candidates. Maximal degree in co-relation 215. Up to 64 conditions per place. [2024-06-27 18:01:32,505 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 17 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2024-06-27 18:01:32,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 29 transitions, 101 flow [2024-06-27 18:01:32,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:32,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-06-27 18:01:32,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-06-27 18:01:32,516 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 53 flow. Second operand 3 states and 57 transitions. [2024-06-27 18:01:32,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 29 transitions, 101 flow [2024-06-27 18:01:32,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:01:32,521 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 63 flow [2024-06-27 18:01:32,523 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2024-06-27 18:01:32,526 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-06-27 18:01:32,526 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 63 flow [2024-06-27 18:01:32,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 18:01:32,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:32,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:32,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:01:32,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:32,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:32,528 INFO L85 PathProgramCache]: Analyzing trace with hash 505797241, now seen corresponding path program 1 times [2024-06-27 18:01:32,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:32,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903449286] [2024-06-27 18:01:32,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:32,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:32,582 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 18:01:32,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:32,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903449286] [2024-06-27 18:01:32,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903449286] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:32,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:32,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:01:32,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092930250] [2024-06-27 18:01:32,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:32,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:32,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:32,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:32,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:32,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-27 18:01:32,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 18:01:32,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:32,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-27 18:01:32,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:32,629 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2024-06-27 18:01:32,630 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-06-27 18:01:32,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 114 events. 36/114 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 373 event pairs, 24 based on Foata normal form. 3/115 useless extension candidates. Maximal degree in co-relation 211. Up to 61 conditions per place. [2024-06-27 18:01:32,631 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 17 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2024-06-27 18:01:32,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 105 flow [2024-06-27 18:01:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-06-27 18:01:32,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2024-06-27 18:01:32,632 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 63 flow. Second operand 3 states and 56 transitions. [2024-06-27 18:01:32,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 105 flow [2024-06-27 18:01:32,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 18:01:32,634 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 54 flow [2024-06-27 18:01:32,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2024-06-27 18:01:32,635 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2024-06-27 18:01:32,635 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 54 flow [2024-06-27 18:01:32,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 18:01:32,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:32,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:32,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:01:32,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:32,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1637807820, now seen corresponding path program 1 times [2024-06-27 18:01:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:32,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658157333] [2024-06-27 18:01:32,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:32,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:32,747 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 18:01:32,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:32,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658157333] [2024-06-27 18:01:32,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658157333] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:32,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:32,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:32,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823109509] [2024-06-27 18:01:32,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:32,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:01:32,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:32,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:01:32,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:01:32,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 18:01:32,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 18:01:32,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:32,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 18:01:32,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:32,866 INFO L124 PetriNetUnfolderBase]: 41/129 cut-off events. [2024-06-27 18:01:32,866 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-27 18:01:32,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 129 events. 41/129 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 445 event pairs, 22 based on Foata normal form. 10/137 useless extension candidates. Maximal degree in co-relation 242. Up to 59 conditions per place. [2024-06-27 18:01:32,869 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 17 selfloop transitions, 3 changer transitions 10/38 dead transitions. [2024-06-27 18:01:32,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 38 transitions, 146 flow [2024-06-27 18:01:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:01:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:01:32,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2024-06-27 18:01:32,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49696969696969695 [2024-06-27 18:01:32,873 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 54 flow. Second operand 5 states and 82 transitions. [2024-06-27 18:01:32,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 38 transitions, 146 flow [2024-06-27 18:01:32,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:32,877 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 65 flow [2024-06-27 18:01:32,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-06-27 18:01:32,879 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places. [2024-06-27 18:01:32,879 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 65 flow [2024-06-27 18:01:32,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 18:01:32,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:32,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:32,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:01:32,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:32,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:32,882 INFO L85 PathProgramCache]: Analyzing trace with hash 259295461, now seen corresponding path program 1 times [2024-06-27 18:01:32,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:32,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977177355] [2024-06-27 18:01:32,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:32,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:32,987 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 18:01:32,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:32,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977177355] [2024-06-27 18:01:32,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977177355] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:32,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:32,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:32,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553798498] [2024-06-27 18:01:32,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:32,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:32,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:32,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:32,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:32,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-27 18:01:32,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 18:01:32,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:32,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-27 18:01:32,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:33,043 INFO L124 PetriNetUnfolderBase]: 15/71 cut-off events. [2024-06-27 18:01:33,044 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-27 18:01:33,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 71 events. 15/71 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 5 based on Foata normal form. 9/76 useless extension candidates. Maximal degree in co-relation 132. Up to 29 conditions per place. [2024-06-27 18:01:33,045 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 8 selfloop transitions, 3 changer transitions 10/29 dead transitions. [2024-06-27 18:01:33,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 115 flow [2024-06-27 18:01:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-06-27 18:01:33,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2024-06-27 18:01:33,048 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 65 flow. Second operand 3 states and 62 transitions. [2024-06-27 18:01:33,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 115 flow [2024-06-27 18:01:33,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 105 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-06-27 18:01:33,051 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 48 flow [2024-06-27 18:01:33,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2024-06-27 18:01:33,052 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2024-06-27 18:01:33,053 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 48 flow [2024-06-27 18:01:33,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 18:01:33,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:33,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:33,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:01:33,054 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:33,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:33,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1362370985, now seen corresponding path program 1 times [2024-06-27 18:01:33,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:33,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821181194] [2024-06-27 18:01:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:33,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:33,224 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 18:01:33,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:33,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821181194] [2024-06-27 18:01:33,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821181194] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:33,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:33,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:01:33,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361891162] [2024-06-27 18:01:33,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:33,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:01:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:33,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:01:33,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:01:33,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-27 18:01:33,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 48 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 18:01:33,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:33,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-27 18:01:33,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:33,256 INFO L124 PetriNetUnfolderBase]: 5/30 cut-off events. [2024-06-27 18:01:33,256 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-27 18:01:33,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 30 events. 5/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 54. Up to 16 conditions per place. [2024-06-27 18:01:33,259 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2024-06-27 18:01:33,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 68 flow [2024-06-27 18:01:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:01:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:01:33,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions. [2024-06-27 18:01:33,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49242424242424243 [2024-06-27 18:01:33,264 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 48 flow. Second operand 4 states and 65 transitions. [2024-06-27 18:01:33,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 68 flow [2024-06-27 18:01:33,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 62 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:33,265 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2024-06-27 18:01:33,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2024-06-27 18:01:33,267 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -7 predicate places. [2024-06-27 18:01:33,267 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2024-06-27 18:01:33,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 18:01:33,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-06-27 18:01:33,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-06-27 18:01:33,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-06-27 18:01:33,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:01:33,271 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-06-27 18:01:33,273 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 18:01:33,273 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 18:01:33,280 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-27 18:01:33,281 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-27 18:01:33,282 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 06:01:33 BasicIcfg [2024-06-27 18:01:33,282 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 18:01:33,283 INFO L158 Benchmark]: Toolchain (without parser) took 2266.27ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 129.4MB in the beginning and 107.3MB in the end (delta: 22.0MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,284 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 65.2MB in the beginning and 65.1MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:33,285 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 155.2MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:33,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.43ms. Allocated memory is still 155.2MB. Free memory was 129.4MB in the beginning and 103.1MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.19ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 101.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,291 INFO L158 Benchmark]: Boogie Preprocessor took 28.81ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,291 INFO L158 Benchmark]: RCFGBuilder took 436.49ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 123.2MB in the end (delta: -24.3MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,291 INFO L158 Benchmark]: TraceAbstraction took 1278.89ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 122.3MB in the beginning and 107.3MB in the end (delta: 15.0MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 65.2MB in the beginning and 65.1MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 155.2MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.43ms. Allocated memory is still 155.2MB. Free memory was 129.4MB in the beginning and 103.1MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.19ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 101.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.81ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 436.49ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 123.2MB in the end (delta: -24.3MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1278.89ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 122.3MB in the beginning and 107.3MB in the end (delta: 15.0MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 8 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 18, 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, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 202 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 18:01:33,327 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