./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/36-apron_11-traces-max-simple_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/36-apron_11-traces-max-simple_true.i ./goblint.2024-06-19_11-23-25.files/protection/36-apron_11-traces-max-simple_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 18:01:53,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:01:53,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:01:53,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:01:53,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:01:53,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:01:53,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:01:53,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:01:53,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:01:53,526 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:01:53,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:01:53,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:01:53,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:01:53,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:01:53,528 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:01:53,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:01:53,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:01:53,529 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:01:53,529 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:01:53,529 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:01:53,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:01:53,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:01:53,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:01:53,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:01:53,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:01:53,530 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:01:53,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:01:53,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:01:53,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:01:53,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:01:53,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:01:53,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:01:53,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:53,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:01:53,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:01:53,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:01:53,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:01:53,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:01:53,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:01:53,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:01:53,534 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:01:53,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:01:53,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:01:53,534 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:01:53,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:01:53,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:01:53,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:01:53,787 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:01:53,788 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:01:53,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/36-apron_11-traces-max-simple_true.yml/witness.yml [2024-06-27 18:01:53,893 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:01:53,894 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:01:53,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2024-06-27 18:01:54,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:01:55,143 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:01:55,147 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2024-06-27 18:01:55,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14c80f6e/6c608afb1a1b4f0585d6ddf6ddf6d485/FLAG6cde19235 [2024-06-27 18:01:55,168 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14c80f6e/6c608afb1a1b4f0585d6ddf6ddf6d485 [2024-06-27 18:01:55,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:01:55,169 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:01:55,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:55,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:01:55,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:01:55,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:53" (1/2) ... [2024-06-27 18:01:55,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c1bfb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:55, skipping insertion in model container [2024-06-27 18:01:55,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:53" (1/2) ... [2024-06-27 18:01:55,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10c7dc5e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:55, skipping insertion in model container [2024-06-27 18:01:55,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:55" (2/2) ... [2024-06-27 18:01:55,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c1bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55, skipping insertion in model container [2024-06-27 18:01:55,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:55" (2/2) ... [2024-06-27 18:01:55,182 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:01:55,207 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:01:55,209 INFO L97 edCorrectnessWitness]: Location invariant before [L694-L694] ! multithreaded || (g == 1 || g == 2) [2024-06-27 18:01:55,209 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-27 18:01:55,209 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:01:55,210 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] multithreaded = 1; [2024-06-27 18:01:55,210 INFO L106 edCorrectnessWitness]: ghost_update [L684-L684] A_locked = 1; [2024-06-27 18:01:55,210 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] A_locked = 1; [2024-06-27 18:01:55,210 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] A_locked = 0; [2024-06-27 18:01:55,210 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] A_locked = 0; [2024-06-27 18:01:55,246 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:01:55,403 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/36-apron_11-traces-max-simple_true.i[1089,1102] [2024-06-27 18:01:55,526 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:55,536 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-06-27 18:01:55,563 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/36-apron_11-traces-max-simple_true.i[1089,1102] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:01:55,591 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:55,624 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:01:55,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55 WrapperNode [2024-06-27 18:01:55,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:55,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:55,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:01:55,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:01:55,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,676 INFO L138 Inliner]: procedures = 162, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-06-27 18:01:55,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:55,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:01:55,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:01:55,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:01:55,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,706 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-06-27 18:01:55,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:01:55,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:01:55,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:01:55,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:01:55,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (1/1) ... [2024-06-27 18:01:55,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:55,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:01:55,754 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 18:01:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 18:01:55,769 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 18:01:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:01:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-27 18:01:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-27 18:01:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:01:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 18:01:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 18:01:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:01:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:01:55,782 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 18:01:55,908 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:01:55,909 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:01:56,004 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:01:56,005 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:01:56,078 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:01:56,078 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:01:56,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:56 BoogieIcfgContainer [2024-06-27 18:01:56,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:01:56,081 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:01:56,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:01:56,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:01:56,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:53" (1/4) ... [2024-06-27 18:01:56,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206ddea8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:01:56, skipping insertion in model container [2024-06-27 18:01:56,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:01:55" (2/4) ... [2024-06-27 18:01:56,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206ddea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:01:56, skipping insertion in model container [2024-06-27 18:01:56,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:55" (3/4) ... [2024-06-27 18:01:56,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206ddea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:01:56, skipping insertion in model container [2024-06-27 18:01:56,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:56" (4/4) ... [2024-06-27 18:01:56,087 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_11-traces-max-simple_true.i [2024-06-27 18:01:56,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:01:56,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-27 18:01:56,102 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:01:56,137 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:01:56,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 26 transitions, 56 flow [2024-06-27 18:01:56,185 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-06-27 18:01:56,185 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:56,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 25 events. 2/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-06-27 18:01:56,188 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 26 transitions, 56 flow [2024-06-27 18:01:56,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 25 transitions, 53 flow [2024-06-27 18:01:56,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:01:56,207 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;@3c50f9c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:01:56,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-06-27 18:01:56,214 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:01:56,214 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 18:01:56,214 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:56,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:56,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:01:56,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 18:01:56,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:56,219 INFO L85 PathProgramCache]: Analyzing trace with hash 181689757, now seen corresponding path program 1 times [2024-06-27 18:01:56,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:56,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628477565] [2024-06-27 18:01:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:56,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:56,374 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 18:01:56,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:56,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628477565] [2024-06-27 18:01:56,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628477565] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:56,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:56,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:01:56,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003482623] [2024-06-27 18:01:56,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:56,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:56,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:56,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:56,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:56,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 26 [2024-06-27 18:01:56,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 18:01:56,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:56,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 26 [2024-06-27 18:01:56,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:56,523 INFO L124 PetriNetUnfolderBase]: 33/111 cut-off events. [2024-06-27 18:01:56,523 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 18:01:56,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 111 events. 33/111 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 418 event pairs, 9 based on Foata normal form. 16/118 useless extension candidates. Maximal degree in co-relation 186. Up to 60 conditions per place. [2024-06-27 18:01:56,525 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 18 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2024-06-27 18:01:56,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 101 flow [2024-06-27 18:01:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-06-27 18:01:56,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-06-27 18:01:56,534 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 53 flow. Second operand 3 states and 54 transitions. [2024-06-27 18:01:56,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 101 flow [2024-06-27 18:01:56,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:01:56,539 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 56 flow [2024-06-27 18:01:56,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2024-06-27 18:01:56,542 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2024-06-27 18:01:56,543 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 56 flow [2024-06-27 18:01:56,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 18:01:56,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:56,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:56,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:01:56,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 18:01:56,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1067765932, now seen corresponding path program 1 times [2024-06-27 18:01:56,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:56,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187609811] [2024-06-27 18:01:56,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:56,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:56,595 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 18:01:56,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:56,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187609811] [2024-06-27 18:01:56,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187609811] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:56,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:56,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:01:56,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510056328] [2024-06-27 18:01:56,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:56,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:56,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:56,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:56,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:56,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 26 [2024-06-27 18:01:56,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 18:01:56,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:56,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 26 [2024-06-27 18:01:56,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:56,650 INFO L124 PetriNetUnfolderBase]: 30/104 cut-off events. [2024-06-27 18:01:56,650 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-06-27 18:01:56,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 104 events. 30/104 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 387 event pairs, 6 based on Foata normal form. 4/99 useless extension candidates. Maximal degree in co-relation 186. Up to 52 conditions per place. [2024-06-27 18:01:56,652 INFO L140 encePairwiseOnDemand]: 24/26 looper letters, 18 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2024-06-27 18:01:56,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 28 transitions, 102 flow [2024-06-27 18:01:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2024-06-27 18:01:56,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6410256410256411 [2024-06-27 18:01:56,654 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 56 flow. Second operand 3 states and 50 transitions. [2024-06-27 18:01:56,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 28 transitions, 102 flow [2024-06-27 18:01:56,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 18:01:56,655 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 48 flow [2024-06-27 18:01:56,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2024-06-27 18:01:56,655 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-06-27 18:01:56,655 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 48 flow [2024-06-27 18:01:56,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 18:01:56,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:56,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:56,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:01:56,656 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 18:01:56,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1067774629, now seen corresponding path program 1 times [2024-06-27 18:01:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:56,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166387427] [2024-06-27 18:01:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:56,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:56,761 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 18:01:56,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:56,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166387427] [2024-06-27 18:01:56,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166387427] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:56,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:56,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:56,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260215055] [2024-06-27 18:01:56,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:56,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:56,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:56,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:56,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:56,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 26 [2024-06-27 18:01:56,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 18:01:56,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:56,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 26 [2024-06-27 18:01:56,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:56,805 INFO L124 PetriNetUnfolderBase]: 36/99 cut-off events. [2024-06-27 18:01:56,805 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-27 18:01:56,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 99 events. 36/99 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 313 event pairs, 24 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 187. Up to 61 conditions per place. [2024-06-27 18:01:56,807 INFO L140 encePairwiseOnDemand]: 23/26 looper letters, 12 selfloop transitions, 2 changer transitions 6/26 dead transitions. [2024-06-27 18:01:56,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 96 flow [2024-06-27 18:01:56,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-06-27 18:01:56,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-06-27 18:01:56,810 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 48 flow. Second operand 3 states and 48 transitions. [2024-06-27 18:01:56,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 96 flow [2024-06-27 18:01:56,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:01:56,811 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 41 flow [2024-06-27 18:01:56,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2024-06-27 18:01:56,813 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2024-06-27 18:01:56,813 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 41 flow [2024-06-27 18:01:56,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 18:01:56,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:56,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:56,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:01:56,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 18:01:56,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:56,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1470942825, now seen corresponding path program 1 times [2024-06-27 18:01:56,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:56,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184420616] [2024-06-27 18:01:56,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:56,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:56,879 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 18:01:56,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:56,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184420616] [2024-06-27 18:01:56,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184420616] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:56,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:56,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:56,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171545887] [2024-06-27 18:01:56,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:56,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:56,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:56,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:56,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:56,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 26 [2024-06-27 18:01:56,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 18:01:56,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:56,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 26 [2024-06-27 18:01:56,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:56,916 INFO L124 PetriNetUnfolderBase]: 20/58 cut-off events. [2024-06-27 18:01:56,919 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-06-27 18:01:56,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 58 events. 20/58 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 10 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 119. Up to 30 conditions per place. [2024-06-27 18:01:56,919 INFO L140 encePairwiseOnDemand]: 24/26 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-06-27 18:01:56,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 84 flow [2024-06-27 18:01:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-06-27 18:01:56,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2024-06-27 18:01:56,920 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 41 flow. Second operand 3 states and 44 transitions. [2024-06-27 18:01:56,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 84 flow [2024-06-27 18:01:56,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:56,921 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2024-06-27 18:01:56,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=33, 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=3, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2024-06-27 18:01:56,922 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -6 predicate places. [2024-06-27 18:01:56,922 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2024-06-27 18:01:56,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 18:01:56,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-06-27 18:01:56,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-06-27 18:01:56,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-06-27 18:01:56,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-06-27 18:01:56,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-06-27 18:01:56,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:01:56,926 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-27 18:01:56,930 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 18:01:56,930 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 18:01:56,934 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-27 18:01:56,936 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-27 18:01:56,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 06:01:56 BasicIcfg [2024-06-27 18:01:56,937 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 18:01:56,938 INFO L158 Benchmark]: Toolchain (without parser) took 1768.05ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 67.7MB in the end (delta: 46.7MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2024-06-27 18:01:56,938 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:56,939 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 148.9MB. Free memory was 120.4MB in the beginning and 120.3MB in the end (delta: 80.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:56,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.61ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 90.0MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:56,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.74ms. Allocated memory is still 148.9MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:56,940 INFO L158 Benchmark]: Boogie Preprocessor took 54.46ms. Allocated memory is still 148.9MB. Free memory was 87.9MB in the beginning and 85.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:56,941 INFO L158 Benchmark]: RCFGBuilder took 347.00ms. Allocated memory is still 148.9MB. Free memory was 85.8MB in the beginning and 66.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-06-27 18:01:56,943 INFO L158 Benchmark]: TraceAbstraction took 856.22ms. Allocated memory is still 148.9MB. Free memory was 65.3MB in the beginning and 67.7MB in the end (delta: -2.4MB). Peak memory consumption was 93.0kB. Max. memory is 16.1GB. [2024-06-27 18:01:56,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 148.9MB. Free memory was 120.4MB in the beginning and 120.3MB in the end (delta: 80.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.61ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 90.0MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.74ms. Allocated memory is still 148.9MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.46ms. Allocated memory is still 148.9MB. Free memory was 87.9MB in the beginning and 85.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.00ms. Allocated memory is still 148.9MB. Free memory was 85.8MB in the beginning and 66.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 856.22ms. Allocated memory is still 148.9MB. Free memory was 65.3MB in the beginning and 67.7MB in the end (delta: -2.4MB). Peak memory consumption was 93.0kB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 694]: 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 - 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, 36 locations, 5 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 3 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 18:01:56,979 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