./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/popl20-three-array-sum.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/popl20-three-array-sum.wvr.c ./goblint.2024-06-19_11-23-25.files/protection/popl20-three-array-sum.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 19:43:17,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:43:17,680 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:43:17,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:43:17,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:43:17,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:43:17,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:43:17,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:43:17,726 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:43:17,729 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:43:17,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:43:17,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:43:17,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:43:17,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:43:17,732 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:43:17,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:43:17,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:43:17,733 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:43:17,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:43:17,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:43:17,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:43:17,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:43:17,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:43:17,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:43:17,735 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:43:17,735 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:43:17,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:43:17,736 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:43:17,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:43:17,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:43:17,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:43:17,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:43:17,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:43:17,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:43:17,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:43:17,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:43:17,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:43:17,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:43:17,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:43:17,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:43:17,740 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:43:17,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:43:17,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:43:17,741 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:43:17,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:43:18,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:43:18,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:43:18,017 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:43:18,018 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:43:18,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/popl20-three-array-sum.wvr.yml/witness.yml [2024-06-27 19:43:18,105 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:43:18,106 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:43:18,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-27 19:43:19,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:43:19,494 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:43:19,494 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-27 19:43:19,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13635e99/524273bce03946c69e67e5a756f9fea2/FLAG77a38d65d [2024-06-27 19:43:19,513 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13635e99/524273bce03946c69e67e5a756f9fea2 [2024-06-27 19:43:19,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:43:19,515 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:43:19,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:43:19,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:43:19,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:43:19,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:18" (1/2) ... [2024-06-27 19:43:19,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748a29b2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:19, skipping insertion in model container [2024-06-27 19:43:19,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:18" (1/2) ... [2024-06-27 19:43:19,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@541b7ed5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:19, skipping insertion in model container [2024-06-27 19:43:19,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:43:19" (2/2) ... [2024-06-27 19:43:19,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748a29b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19, skipping insertion in model container [2024-06-27 19:43:19,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:43:19" (2/2) ... [2024-06-27 19:43:19,525 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:43:19,539 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:43:19,543 INFO L97 edCorrectnessWitness]: Location invariant before [L95-L95] ! multithreaded || 0 <= p [2024-06-27 19:43:19,544 INFO L97 edCorrectnessWitness]: Location invariant before [L97-L97] ! multithreaded || 0 <= p [2024-06-27 19:43:19,544 INFO L97 edCorrectnessWitness]: Location invariant before [L96-L96] ! multithreaded || 0 <= p [2024-06-27 19:43:19,544 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:43:19,544 INFO L106 edCorrectnessWitness]: ghost_update [L94-L94] multithreaded = 1; [2024-06-27 19:43:19,562 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:43:19,753 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:43:19,762 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:43:19,854 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:43:19,880 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:43:19,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19 WrapperNode [2024-06-27 19:43:19,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:43:19,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:43:19,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:43:19,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:43:19,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,929 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 146 [2024-06-27 19:43:19,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:43:19,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:43:19,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:43:19,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:43:19,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,962 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-06-27 19:43:19,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:43:19,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:43:19,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:43:19,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:43:19,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (1/1) ... [2024-06-27 19:43:19,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:43:19,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:43:20,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 19:43:20,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 19:43:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:43:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 19:43:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 19:43:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 19:43:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 19:43:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-27 19:43:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-27 19:43:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:43:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:43:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-27 19:43:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-27 19:43:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 19:43:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 19:43:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-27 19:43:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:43:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:43:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-27 19:43:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-27 19:43:20,117 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:43:20,206 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:43:20,208 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:43:20,521 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:43:20,521 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:43:20,851 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:43:20,852 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-27 19:43:20,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:43:20 BoogieIcfgContainer [2024-06-27 19:43:20,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:43:20,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:43:20,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:43:20,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:43:20,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:18" (1/4) ... [2024-06-27 19:43:20,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d1aa8b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:43:20, skipping insertion in model container [2024-06-27 19:43:20,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:43:19" (2/4) ... [2024-06-27 19:43:20,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d1aa8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:43:20, skipping insertion in model container [2024-06-27 19:43:20,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:19" (3/4) ... [2024-06-27 19:43:20,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d1aa8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:43:20, skipping insertion in model container [2024-06-27 19:43:20,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:43:20" (4/4) ... [2024-06-27 19:43:20,864 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-06-27 19:43:20,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:43:20,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-27 19:43:20,883 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:43:20,942 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-27 19:43:20,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 109 flow [2024-06-27 19:43:21,011 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-06-27 19:43:21,013 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-27 19:43:21,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 7/41 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-06-27 19:43:21,018 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 44 transitions, 109 flow [2024-06-27 19:43:21,024 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 39 transitions, 93 flow [2024-06-27 19:43:21,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:43:21,041 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;@7f78b005, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:43:21,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-27 19:43:21,047 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:43:21,047 INFO L124 PetriNetUnfolderBase]: 4/12 cut-off events. [2024-06-27 19:43:21,048 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:43:21,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:21,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:21,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:43:21,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:21,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1351939582, now seen corresponding path program 1 times [2024-06-27 19:43:21,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:21,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45870] [2024-06-27 19:43:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:21,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:21,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:21,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45870] [2024-06-27 19:43:21,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45870] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:43:21,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:43:21,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:43:21,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323703716] [2024-06-27 19:43:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:43:21,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:43:21,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:21,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:43:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:43:21,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-06-27 19:43:21,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:43:21,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:21,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-06-27 19:43:21,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:21,705 INFO L124 PetriNetUnfolderBase]: 753/1196 cut-off events. [2024-06-27 19:43:21,705 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-06-27 19:43:21,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2340 conditions, 1196 events. 753/1196 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5085 event pairs, 237 based on Foata normal form. 45/1100 useless extension candidates. Maximal degree in co-relation 2064. Up to 669 conditions per place. [2024-06-27 19:43:21,720 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 42 selfloop transitions, 2 changer transitions 1/53 dead transitions. [2024-06-27 19:43:21,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 220 flow [2024-06-27 19:43:21,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:43:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:43:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-06-27 19:43:21,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-06-27 19:43:21,736 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 93 flow. Second operand 3 states and 81 transitions. [2024-06-27 19:43:21,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 220 flow [2024-06-27 19:43:21,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 206 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-27 19:43:21,746 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 96 flow [2024-06-27 19:43:21,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=39} [2024-06-27 19:43:21,753 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2024-06-27 19:43:21,753 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 96 flow [2024-06-27 19:43:21,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:43:21,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:21,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:21,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:43:21,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:43:21,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:21,757 INFO L85 PathProgramCache]: Analyzing trace with hash -523688117, now seen corresponding path program 1 times [2024-06-27 19:43:21,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:21,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182503332] [2024-06-27 19:43:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:21,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:21,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182503332] [2024-06-27 19:43:21,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182503332] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:43:21,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:43:21,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:43:21,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169148152] [2024-06-27 19:43:21,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:43:21,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:43:21,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:21,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:43:21,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:43:21,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-06-27 19:43:21,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 39 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:43:21,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:21,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-06-27 19:43:21,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:22,294 INFO L124 PetriNetUnfolderBase]: 1067/1708 cut-off events. [2024-06-27 19:43:22,296 INFO L125 PetriNetUnfolderBase]: For 264/264 co-relation queries the response was YES. [2024-06-27 19:43:22,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3506 conditions, 1708 events. 1067/1708 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7917 event pairs, 405 based on Foata normal form. 54/1581 useless extension candidates. Maximal degree in co-relation 903. Up to 922 conditions per place. [2024-06-27 19:43:22,310 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 67 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2024-06-27 19:43:22,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 80 transitions, 334 flow [2024-06-27 19:43:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:43:22,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:43:22,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-06-27 19:43:22,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2024-06-27 19:43:22,314 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 96 flow. Second operand 5 states and 131 transitions. [2024-06-27 19:43:22,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 80 transitions, 334 flow [2024-06-27 19:43:22,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 80 transitions, 332 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:43:22,316 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 133 flow [2024-06-27 19:43:22,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=133, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2024-06-27 19:43:22,317 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-06-27 19:43:22,317 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 133 flow [2024-06-27 19:43:22,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:43:22,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:22,318 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:22,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:43:22,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:43:22,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:22,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1869976966, now seen corresponding path program 1 times [2024-06-27 19:43:22,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:22,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344224800] [2024-06-27 19:43:22,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:22,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-27 19:43:22,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:22,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344224800] [2024-06-27 19:43:22,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344224800] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:43:22,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:43:22,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:43:22,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719604486] [2024-06-27 19:43:22,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:43:22,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:43:22,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:22,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:43:22,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:43:22,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-06-27 19:43:22,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:43:22,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:22,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-06-27 19:43:22,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:22,846 INFO L124 PetriNetUnfolderBase]: 1551/2431 cut-off events. [2024-06-27 19:43:22,846 INFO L125 PetriNetUnfolderBase]: For 922/961 co-relation queries the response was YES. [2024-06-27 19:43:22,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5653 conditions, 2431 events. 1551/2431 cut-off events. For 922/961 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 11352 event pairs, 1077 based on Foata normal form. 44/2194 useless extension candidates. Maximal degree in co-relation 2737. Up to 1749 conditions per place. [2024-06-27 19:43:22,860 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 30 selfloop transitions, 6 changer transitions 42/87 dead transitions. [2024-06-27 19:43:22,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 394 flow [2024-06-27 19:43:22,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:43:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:43:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-06-27 19:43:22,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5795454545454546 [2024-06-27 19:43:22,866 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 133 flow. Second operand 6 states and 153 transitions. [2024-06-27 19:43:22,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 394 flow [2024-06-27 19:43:22,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 87 transitions, 385 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 19:43:22,874 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 170 flow [2024-06-27 19:43:22,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-06-27 19:43:22,876 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2024-06-27 19:43:22,876 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 170 flow [2024-06-27 19:43:22,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:43:22,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:22,877 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:22,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:43:22,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:43:22,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:22,878 INFO L85 PathProgramCache]: Analyzing trace with hash 911378980, now seen corresponding path program 1 times [2024-06-27 19:43:22,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:22,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475090502] [2024-06-27 19:43:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:22,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-27 19:43:23,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:23,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475090502] [2024-06-27 19:43:23,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475090502] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:43:23,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474488559] [2024-06-27 19:43:23,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:23,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:43:23,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:43:23,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 19:43:23,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-27 19:43:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:23,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-27 19:43:23,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:43:23,219 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-27 19:43:23,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 19:43:23,297 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-27 19:43:23,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474488559] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 19:43:23,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 19:43:23,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-06-27 19:43:23,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423743512] [2024-06-27 19:43:23,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 19:43:23,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-27 19:43:23,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:23,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-27 19:43:23,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-06-27 19:43:23,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2024-06-27 19:43:23,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 170 flow. Second operand has 14 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:43:23,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:23,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2024-06-27 19:43:23,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:23,991 INFO L124 PetriNetUnfolderBase]: 1817/2756 cut-off events. [2024-06-27 19:43:23,991 INFO L125 PetriNetUnfolderBase]: For 936/936 co-relation queries the response was YES. [2024-06-27 19:43:23,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6774 conditions, 2756 events. 1817/2756 cut-off events. For 936/936 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 12982 event pairs, 331 based on Foata normal form. 116/2575 useless extension candidates. Maximal degree in co-relation 4150. Up to 470 conditions per place. [2024-06-27 19:43:24,001 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2024-06-27 19:43:24,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 158 transitions, 794 flow [2024-06-27 19:43:24,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-27 19:43:24,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-27 19:43:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 286 transitions. [2024-06-27 19:43:24,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-27 19:43:24,003 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 170 flow. Second operand 13 states and 286 transitions. [2024-06-27 19:43:24,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 158 transitions, 794 flow [2024-06-27 19:43:24,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 158 transitions, 742 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-06-27 19:43:24,015 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-27 19:43:24,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-06-27 19:43:24,016 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2024-06-27 19:43:24,016 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-27 19:43:24,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:43:24,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-27 19:43:24,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-27 19:43:24,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-27 19:43:24,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-27 19:43:24,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-27 19:43:24,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-27 19:43:24,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-27 19:43:24,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:43:24,233 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-27 19:43:24,236 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:43:24,236 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:43:24,240 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-27 19:43:24,240 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-27 19:43:24,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:43:24 BasicIcfg [2024-06-27 19:43:24,241 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:43:24,242 INFO L158 Benchmark]: Toolchain (without parser) took 4727.39ms. Allocated memory was 176.2MB in the beginning and 243.3MB in the end (delta: 67.1MB). Free memory was 118.5MB in the beginning and 92.2MB in the end (delta: 26.3MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2024-06-27 19:43:24,242 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 176.2MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:43:24,242 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:43:24,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.44ms. Allocated memory is still 176.2MB. Free memory was 118.5MB in the beginning and 103.3MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-27 19:43:24,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.11ms. Allocated memory is still 176.2MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:43:24,244 INFO L158 Benchmark]: Boogie Preprocessor took 50.31ms. Allocated memory is still 176.2MB. Free memory was 101.2MB in the beginning and 98.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:43:24,249 INFO L158 Benchmark]: RCFGBuilder took 872.15ms. Allocated memory was 176.2MB in the beginning and 243.3MB in the end (delta: 67.1MB). Free memory was 98.6MB in the beginning and 181.9MB in the end (delta: -83.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2024-06-27 19:43:24,250 INFO L158 Benchmark]: TraceAbstraction took 3386.06ms. Allocated memory is still 243.3MB. Free memory was 181.9MB in the beginning and 92.2MB in the end (delta: 89.8MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. [2024-06-27 19:43:24,251 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 0.22ms. Allocated memory is still 176.2MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.44ms. Allocated memory is still 176.2MB. Free memory was 118.5MB in the beginning and 103.3MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.11ms. Allocated memory is still 176.2MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.31ms. Allocated memory is still 176.2MB. Free memory was 101.2MB in the beginning and 98.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 872.15ms. Allocated memory was 176.2MB in the beginning and 243.3MB in the end (delta: 67.1MB). Free memory was 98.6MB in the beginning and 181.9MB in the end (delta: -83.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3386.06ms. Allocated memory is still 243.3MB. Free memory was 181.9MB in the beginning and 92.2MB in the end (delta: 89.8MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 96]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 97]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 57 locations, 6 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: 3.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 309 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1133 IncrementalHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 7 mSDtfsCounter, 1133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 263 SizeOfPredicates, 3 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 13/17 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 19:43:24,284 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