./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/security.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/security.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/security.wvr.c ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/security.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 01:09:11,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:09:11,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:09:11,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:09:11,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:09:11,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:09:11,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:09:11,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:09:11,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:09:11,932 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:09:11,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:09:11,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:09:11,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:09:11,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:09:11,934 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:09:11,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:09:11,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:09:11,934 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:09:11,935 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:09:11,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:09:11,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:09:11,936 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:09:11,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:09:11,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:09:11,937 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:09:11,937 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:09:11,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:09:11,938 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:09:11,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:09:11,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:09:11,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:09:11,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:09:11,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:09:11,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:09:11,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:09:11,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:09:11,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:09:11,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:09:11,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:09:11,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:09:11,941 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:09:11,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:09:11,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:09:11,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:09:12,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:09:12,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:09:12,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:09:12,198 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:09:12,199 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:09:12,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/security.wvr.yml/witness.yml [2024-06-28 01:09:12,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:09:12,297 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:09:12,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/security.wvr.c [2024-06-28 01:09:13,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:09:13,585 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:09:13,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c [2024-06-28 01:09:13,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e8a5ade/9ffa2eb58791456180bb1c1a3620a5eb/FLAGc614acb96 [2024-06-28 01:09:13,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e8a5ade/9ffa2eb58791456180bb1c1a3620a5eb [2024-06-28 01:09:13,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:09:13,604 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:09:13,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:09:13,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:09:13,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:09:13,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:09:12" (1/2) ... [2024-06-28 01:09:13,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391384f5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:09:13, skipping insertion in model container [2024-06-28 01:09:13,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:09:12" (1/2) ... [2024-06-28 01:09:13,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@45222fd3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:09:13, skipping insertion in model container [2024-06-28 01:09:13,611 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:09:13" (2/2) ... [2024-06-28 01:09:13,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391384f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13, skipping insertion in model container [2024-06-28 01:09:13,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:09:13" (2/2) ... [2024-06-28 01:09:13,612 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:09:13,624 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:09:13,625 INFO L97 edCorrectnessWitness]: Location invariant before [L71-L71] (((! multithreaded || (z1 == 0U || z1 == 1U)) && (! multithreaded || (x1 == 0U || x1 == 1U))) && (! multithreaded || (z2 == 0U || z2 == 1U))) && (! multithreaded || (x2 == 0U || x2 == 1U)) [2024-06-28 01:09:13,625 INFO L97 edCorrectnessWitness]: Location invariant before [L72-L72] (((! multithreaded || (z1 == 0U || z1 == 1U)) && (! multithreaded || (x1 == 0U || x1 == 1U))) && (! multithreaded || (z2 == 0U || z2 == 1U))) && (! multithreaded || (x2 == 0U || x2 == 1U)) [2024-06-28 01:09:13,626 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:09:13,626 INFO L106 edCorrectnessWitness]: ghost_update [L70-L70] multithreaded = 1; [2024-06-28 01:09:13,645 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:09:13,832 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c[1957,1970] [2024-06-28 01:09:13,836 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:09:13,851 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:09:13,899 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c[1957,1970] [2024-06-28 01:09:13,899 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:09:13,910 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:09:13,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13 WrapperNode [2024-06-28 01:09:13,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:09:13,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:09:13,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:09:13,912 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:09:13,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,934 INFO L138 Inliner]: procedures = 20, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2024-06-28 01:09:13,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:09:13,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:09:13,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:09:13,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:09:13,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,943 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,951 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-28 01:09:13,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:09:13,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:09:13,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:09:13,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:09:13,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (1/1) ... [2024-06-28 01:09:13,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:09:13,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:09:14,009 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) [2024-06-28 01:09:14,011 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 [2024-06-28 01:09:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:09:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-28 01:09:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-28 01:09:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-28 01:09:14,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-28 01:09:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:09:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:09:14,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:09:14,039 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 01:09:14,142 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:09:14,143 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:09:14,306 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:09:14,306 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:09:14,404 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:09:14,405 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 01:09:14,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:09:14 BoogieIcfgContainer [2024-06-28 01:09:14,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:09:14,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:09:14,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:09:14,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:09:14,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:09:12" (1/4) ... [2024-06-28 01:09:14,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7826e981 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:09:14, skipping insertion in model container [2024-06-28 01:09:14,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:09:13" (2/4) ... [2024-06-28 01:09:14,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7826e981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:09:14, skipping insertion in model container [2024-06-28 01:09:14,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:13" (3/4) ... [2024-06-28 01:09:14,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7826e981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:09:14, skipping insertion in model container [2024-06-28 01:09:14,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:09:14" (4/4) ... [2024-06-28 01:09:14,413 INFO L112 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2024-06-28 01:09:14,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:09:14,427 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-28 01:09:14,427 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:09:14,471 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-28 01:09:14,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 52 flow [2024-06-28 01:09:14,534 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-06-28 01:09:14,535 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-28 01:09:14,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 0/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-28 01:09:14,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 19 transitions, 52 flow [2024-06-28 01:09:14,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 16 transitions, 44 flow [2024-06-28 01:09:14,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:09:14,558 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;@436477bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:09:14,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-06-28 01:09:14,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:09:14,566 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-28 01:09:14,566 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:09:14,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:14,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 01:09:14,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-28 01:09:14,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:14,572 INFO L85 PathProgramCache]: Analyzing trace with hash 186013334, now seen corresponding path program 1 times [2024-06-28 01:09:14,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:14,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884294597] [2024-06-28 01:09:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:14,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:15,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:15,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884294597] [2024-06-28 01:09:15,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884294597] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:15,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:15,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:09:15,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649493175] [2024-06-28 01:09:15,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:15,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:09:15,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:15,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:09:15,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:09:15,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2024-06-28 01:09:15,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-06-28 01:09:15,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:15,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2024-06-28 01:09:15,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:15,161 INFO L124 PetriNetUnfolderBase]: 11/37 cut-off events. [2024-06-28 01:09:15,161 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2024-06-28 01:09:15,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 37 events. 11/37 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 2 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 59. Up to 29 conditions per place. [2024-06-28 01:09:15,165 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 16 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2024-06-28 01:09:15,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 22 transitions, 97 flow [2024-06-28 01:09:15,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:09:15,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:09:15,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2024-06-28 01:09:15,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2024-06-28 01:09:15,177 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 44 flow. Second operand 3 states and 36 transitions. [2024-06-28 01:09:15,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 22 transitions, 97 flow [2024-06-28 01:09:15,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 22 transitions, 87 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-28 01:09:15,181 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 57 flow [2024-06-28 01:09:15,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2024-06-28 01:09:15,185 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2024-06-28 01:09:15,186 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 57 flow [2024-06-28 01:09:15,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-06-28 01:09:15,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:15,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-28 01:09:15,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:09:15,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-28 01:09:15,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:15,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1471446682, now seen corresponding path program 1 times [2024-06-28 01:09:15,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:15,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727438471] [2024-06-28 01:09:15,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:15,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:15,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:15,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:15,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727438471] [2024-06-28 01:09:15,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727438471] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:15,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:15,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:09:15,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619147234] [2024-06-28 01:09:15,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:15,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:09:15,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:15,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:09:15,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:09:15,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2024-06-28 01:09:15,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:09:15,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:15,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2024-06-28 01:09:15,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:15,469 INFO L124 PetriNetUnfolderBase]: 10/34 cut-off events. [2024-06-28 01:09:15,469 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2024-06-28 01:09:15,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 34 events. 10/34 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 4/38 useless extension candidates. Maximal degree in co-relation 23. Up to 16 conditions per place. [2024-06-28 01:09:15,470 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 16 selfloop transitions, 4 changer transitions 0/23 dead transitions. [2024-06-28 01:09:15,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 23 transitions, 107 flow [2024-06-28 01:09:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:09:15,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:09:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2024-06-28 01:09:15,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2024-06-28 01:09:15,473 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 57 flow. Second operand 4 states and 42 transitions. [2024-06-28 01:09:15,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 23 transitions, 107 flow [2024-06-28 01:09:15,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 23 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:09:15,474 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 62 flow [2024-06-28 01:09:15,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2024-06-28 01:09:15,475 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2024-06-28 01:09:15,475 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 62 flow [2024-06-28 01:09:15,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:09:15,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:15,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:15,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:09:15,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-28 01:09:15,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:15,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1419649667, now seen corresponding path program 1 times [2024-06-28 01:09:15,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:15,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131197571] [2024-06-28 01:09:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:15,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:15,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:15,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131197571] [2024-06-28 01:09:15,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131197571] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:15,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:15,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:09:15,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190410860] [2024-06-28 01:09:15,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:15,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:09:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:15,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:09:15,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:09:15,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2024-06-28 01:09:15,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-06-28 01:09:15,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:15,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2024-06-28 01:09:15,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:15,793 INFO L124 PetriNetUnfolderBase]: 9/32 cut-off events. [2024-06-28 01:09:15,793 INFO L125 PetriNetUnfolderBase]: For 37/39 co-relation queries the response was YES. [2024-06-28 01:09:15,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 32 events. 9/32 cut-off events. For 37/39 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 1 based on Foata normal form. 3/35 useless extension candidates. Maximal degree in co-relation 34. Up to 21 conditions per place. [2024-06-28 01:09:15,794 INFO L140 encePairwiseOnDemand]: 15/19 looper letters, 15 selfloop transitions, 4 changer transitions 0/22 dead transitions. [2024-06-28 01:09:15,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 111 flow [2024-06-28 01:09:15,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:09:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:09:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2024-06-28 01:09:15,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-06-28 01:09:15,796 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 62 flow. Second operand 4 states and 40 transitions. [2024-06-28 01:09:15,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 111 flow [2024-06-28 01:09:15,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 103 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-28 01:09:15,800 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 66 flow [2024-06-28 01:09:15,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2024-06-28 01:09:15,801 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2024-06-28 01:09:15,801 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 66 flow [2024-06-28 01:09:15,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-06-28 01:09:15,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:15,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:15,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:09:15,802 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-28 01:09:15,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1059466111, now seen corresponding path program 1 times [2024-06-28 01:09:15,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:15,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144389000] [2024-06-28 01:09:15,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:15,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:16,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:16,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144389000] [2024-06-28 01:09:16,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144389000] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:16,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:16,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:09:16,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546058833] [2024-06-28 01:09:16,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:16,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:09:16,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:09:16,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:09:16,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2024-06-28 01:09:16,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-06-28 01:09:16,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:16,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2024-06-28 01:09:16,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:16,127 INFO L124 PetriNetUnfolderBase]: 8/38 cut-off events. [2024-06-28 01:09:16,127 INFO L125 PetriNetUnfolderBase]: For 47/49 co-relation queries the response was YES. [2024-06-28 01:09:16,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 38 events. 8/38 cut-off events. For 47/49 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 1 based on Foata normal form. 3/41 useless extension candidates. Maximal degree in co-relation 72. Up to 17 conditions per place. [2024-06-28 01:09:16,128 INFO L140 encePairwiseOnDemand]: 16/19 looper letters, 19 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2024-06-28 01:09:16,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 129 flow [2024-06-28 01:09:16,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:09:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:09:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2024-06-28 01:09:16,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2024-06-28 01:09:16,129 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 66 flow. Second operand 4 states and 42 transitions. [2024-06-28 01:09:16,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 129 flow [2024-06-28 01:09:16,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 121 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-28 01:09:16,130 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 67 flow [2024-06-28 01:09:16,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=67, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2024-06-28 01:09:16,130 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2024-06-28 01:09:16,131 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 67 flow [2024-06-28 01:09:16,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-06-28 01:09:16,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:16,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:16,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:09:16,131 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-28 01:09:16,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:16,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1059813001, now seen corresponding path program 2 times [2024-06-28 01:09:16,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:16,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868186530] [2024-06-28 01:09:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:16,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:16,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:16,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:16,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868186530] [2024-06-28 01:09:16,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868186530] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:16,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:16,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:09:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823813152] [2024-06-28 01:09:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:16,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:09:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:09:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:09:16,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2024-06-28 01:09:16,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-06-28 01:09:16,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:16,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2024-06-28 01:09:16,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:16,372 INFO L124 PetriNetUnfolderBase]: 8/37 cut-off events. [2024-06-28 01:09:16,372 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-06-28 01:09:16,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 37 events. 8/37 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 55 event pairs, 4 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 81. Up to 17 conditions per place. [2024-06-28 01:09:16,373 INFO L140 encePairwiseOnDemand]: 16/19 looper letters, 16 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2024-06-28 01:09:16,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 110 flow [2024-06-28 01:09:16,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:09:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:09:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2024-06-28 01:09:16,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131578947368421 [2024-06-28 01:09:16,375 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 67 flow. Second operand 4 states and 39 transitions. [2024-06-28 01:09:16,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 110 flow [2024-06-28 01:09:16,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 97 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-28 01:09:16,376 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 50 flow [2024-06-28 01:09:16,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2024-06-28 01:09:16,378 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2024-06-28 01:09:16,381 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 50 flow [2024-06-28 01:09:16,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-06-28 01:09:16,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:16,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:16,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:09:16,382 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-28 01:09:16,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:16,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1898969001, now seen corresponding path program 1 times [2024-06-28 01:09:16,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:16,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566036612] [2024-06-28 01:09:16,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:16,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:16,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:16,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:16,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566036612] [2024-06-28 01:09:16,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566036612] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:16,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:16,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:09:16,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707792689] [2024-06-28 01:09:16,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:16,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:09:16,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:16,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:09:16,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:09:16,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 19 [2024-06-28 01:09:16,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-06-28 01:09:16,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:16,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 19 [2024-06-28 01:09:16,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:16,574 INFO L124 PetriNetUnfolderBase]: 8/34 cut-off events. [2024-06-28 01:09:16,574 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2024-06-28 01:09:16,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 34 events. 8/34 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 3/37 useless extension candidates. Maximal degree in co-relation 43. Up to 16 conditions per place. [2024-06-28 01:09:16,574 INFO L140 encePairwiseOnDemand]: 15/19 looper letters, 10 selfloop transitions, 3 changer transitions 8/24 dead transitions. [2024-06-28 01:09:16,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 111 flow [2024-06-28 01:09:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:09:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:09:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 57 transitions. [2024-06-28 01:09:16,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-06-28 01:09:16,575 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 50 flow. Second operand 5 states and 57 transitions. [2024-06-28 01:09:16,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 111 flow [2024-06-28 01:09:16,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:09:16,576 INFO L231 Difference]: Finished difference. Result has 27 places, 14 transitions, 45 flow [2024-06-28 01:09:16,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=45, PETRI_PLACES=27, PETRI_TRANSITIONS=14} [2024-06-28 01:09:16,576 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2024-06-28 01:09:16,576 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 45 flow [2024-06-28 01:09:16,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-06-28 01:09:16,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:16,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:16,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:09:16,577 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-28 01:09:16,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:16,577 INFO L85 PathProgramCache]: Analyzing trace with hash -727032473, now seen corresponding path program 2 times [2024-06-28 01:09:16,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:16,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931107509] [2024-06-28 01:09:16,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:16,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:16,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:16,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931107509] [2024-06-28 01:09:16,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931107509] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:16,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:16,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:09:16,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728754966] [2024-06-28 01:09:16,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:16,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:09:16,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:16,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:09:16,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:09:16,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 19 [2024-06-28 01:09:16,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 45 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-06-28 01:09:16,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:16,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 19 [2024-06-28 01:09:16,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:16,722 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-06-28 01:09:16,722 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-28 01:09:16,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 16 events. 2/16 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 42. Up to 6 conditions per place. [2024-06-28 01:09:16,722 INFO L140 encePairwiseOnDemand]: 15/19 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2024-06-28 01:09:16,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 14 transitions, 67 flow [2024-06-28 01:09:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:09:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:09:16,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2024-06-28 01:09:16,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5052631578947369 [2024-06-28 01:09:16,723 INFO L175 Difference]: Start difference. First operand has 27 places, 14 transitions, 45 flow. Second operand 5 states and 48 transitions. [2024-06-28 01:09:16,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 14 transitions, 67 flow [2024-06-28 01:09:16,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-28 01:09:16,724 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2024-06-28 01:09:16,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2024-06-28 01:09:16,724 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -2 predicate places. [2024-06-28 01:09:16,724 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2024-06-28 01:09:16,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-06-28 01:09:16,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-06-28 01:09:16,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-06-28 01:09:16,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-06-28 01:09:16,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-06-28 01:09:16,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-06-28 01:09:16,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-28 01:09:16,727 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-06-28 01:09:16,729 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 01:09:16,729 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 01:09:16,732 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-28 01:09:16,732 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-28 01:09:16,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 01:09:16 BasicIcfg [2024-06-28 01:09:16,733 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 01:09:16,733 INFO L158 Benchmark]: Toolchain (without parser) took 3129.49ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 70.2MB in the beginning and 56.4MB in the end (delta: 13.8MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2024-06-28 01:09:16,733 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 90.0MB in the end (delta: 71.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:09:16,733 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 86.1MB in the beginning and 86.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:09:16,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.62ms. Allocated memory is still 127.9MB. Free memory was 70.0MB in the beginning and 95.8MB in the end (delta: -25.9MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-06-28 01:09:16,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.51ms. Allocated memory is still 127.9MB. Free memory was 95.4MB in the beginning and 94.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:09:16,734 INFO L158 Benchmark]: Boogie Preprocessor took 32.18ms. Allocated memory is still 127.9MB. Free memory was 93.8MB in the beginning and 92.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:09:16,734 INFO L158 Benchmark]: RCFGBuilder took 438.03ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 68.6MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-28 01:09:16,734 INFO L158 Benchmark]: TraceAbstraction took 2325.98ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 67.6MB in the beginning and 56.4MB in the end (delta: 11.2MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2024-06-28 01:09:16,736 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 0.19ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 90.0MB in the end (delta: 71.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 86.1MB in the beginning and 86.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.62ms. Allocated memory is still 127.9MB. Free memory was 70.0MB in the beginning and 95.8MB in the end (delta: -25.9MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.51ms. Allocated memory is still 127.9MB. Free memory was 95.4MB in the beginning and 94.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.18ms. Allocated memory is still 127.9MB. Free memory was 93.8MB in the beginning and 92.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.03ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 68.6MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2325.98ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 67.6MB in the beginning and 56.4MB in the end (delta: 11.2MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 72]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 76]: 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 5 procedures, 26 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: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 6 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-06-28 01:09:16,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE