./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/mutex-meet-nonrel/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/mutex-meet-nonrel/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 [2024-06-28 02:47:07,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 02:47:07,867 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 02:47:07,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 02:47:07,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 02:47:07,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 02:47:07,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 02:47:07,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 02:47:07,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 02:47:07,896 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 02:47:07,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 02:47:07,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 02:47:07,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 02:47:07,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 02:47:07,899 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 02:47:07,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 02:47:07,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 02:47:07,899 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 02:47:07,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 02:47:07,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 02:47:07,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 02:47:07,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 02:47:07,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 02:47:07,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 02:47:07,902 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 02:47:07,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 02:47:07,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 02:47:07,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 02:47:07,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 02:47:07,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 02:47:07,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 02:47:07,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 02:47:07,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 02:47:07,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 02:47:07,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 02:47:07,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 02:47:07,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 02:47:07,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 02:47:07,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 02:47:07,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 02:47:07,906 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 02:47:07,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 02:47:07,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 02:47:07,906 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-28 02:47:08,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 02:47:08,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 02:47:08,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 02:47:08,198 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 02:47:08,198 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 02:47:08,199 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/popl20-three-array-sum.wvr.yml/witness.yml [2024-06-28 02:47:08,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 02:47:08,276 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 02:47:08,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-28 02:47:09,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 02:47:09,485 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 02:47:09,485 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-28 02:47:09,492 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae3c4e16/e86a84ee40c34f95b35251e36e547251/FLAGd2d42d34c [2024-06-28 02:47:09,504 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae3c4e16/e86a84ee40c34f95b35251e36e547251 [2024-06-28 02:47:09,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 02:47:09,505 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 02:47:09,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 02:47:09,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 02:47:09,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 02:47:09,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:47:08" (1/2) ... [2024-06-28 02:47:09,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5394e443 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:47:09, skipping insertion in model container [2024-06-28 02:47:09,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:47:08" (1/2) ... [2024-06-28 02:47:09,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23feb9ff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:47:09, skipping insertion in model container [2024-06-28 02:47:09,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 02:47:09" (2/2) ... [2024-06-28 02:47:09,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5394e443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09, skipping insertion in model container [2024-06-28 02:47:09,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 02:47:09" (2/2) ... [2024-06-28 02:47:09,519 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 02:47:09,537 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 02:47:09,538 INFO L97 edCorrectnessWitness]: Location invariant before [L97-L97] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-28 02:47:09,538 INFO L97 edCorrectnessWitness]: Location invariant before [L95-L95] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-28 02:47:09,538 INFO L97 edCorrectnessWitness]: Location invariant before [L96-L96] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-28 02:47:09,538 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 02:47:09,538 INFO L106 edCorrectnessWitness]: ghost_update [L94-L94] multithreaded = 1; [2024-06-28 02:47:09,556 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 02:47:09,702 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 02:47:09,708 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 02:47:09,756 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 02:47:09,779 INFO L206 MainTranslator]: Completed translation [2024-06-28 02:47:09,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09 WrapperNode [2024-06-28 02:47:09,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 02:47:09,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 02:47:09,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 02:47:09,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 02:47:09,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,821 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 146 [2024-06-28 02:47:09,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 02:47:09,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 02:47:09,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 02:47:09,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 02:47:09,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,843 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]. [2024-06-28 02:47:09,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 02:47:09,856 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 02:47:09,856 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 02:47:09,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 02:47:09,857 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (1/1) ... [2024-06-28 02:47:09,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 02:47:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 02:47:09,880 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 02:47:09,928 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 02:47:09,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 02:47:09,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-28 02:47:09,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-28 02:47:09,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-28 02:47:09,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-28 02:47:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-28 02:47:09,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-28 02:47:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 02:47:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 02:47:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-28 02:47:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-28 02:47:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-28 02:47:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-28 02:47:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-28 02:47:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 02:47:09,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 02:47:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-28 02:47:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-28 02:47:09,965 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 02:47:10,062 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 02:47:10,064 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 02:47:10,389 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 02:47:10,389 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 02:47:10,611 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 02:47:10,612 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-28 02:47:10,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 02:47:10 BoogieIcfgContainer [2024-06-28 02:47:10,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 02:47:10,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 02:47:10,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 02:47:10,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 02:47:10,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:47:08" (1/4) ... [2024-06-28 02:47:10,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edaeabd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 02:47:10, skipping insertion in model container [2024-06-28 02:47:10,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 02:47:09" (2/4) ... [2024-06-28 02:47:10,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edaeabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 02:47:10, skipping insertion in model container [2024-06-28 02:47:10,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:47:09" (3/4) ... [2024-06-28 02:47:10,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edaeabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 02:47:10, skipping insertion in model container [2024-06-28 02:47:10,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 02:47:10" (4/4) ... [2024-06-28 02:47:10,622 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-06-28 02:47:10,634 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 02:47:10,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-28 02:47:10,635 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 02:47:10,682 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-28 02:47:10,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 109 flow [2024-06-28 02:47:10,739 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-06-28 02:47:10,740 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-28 02:47:10,743 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. [2024-06-28 02:47:10,743 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 44 transitions, 109 flow [2024-06-28 02:47:10,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 39 transitions, 93 flow [2024-06-28 02:47:10,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 02:47:10,769 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;@56c0b5ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 02:47:10,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-28 02:47:10,778 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 02:47:10,778 INFO L124 PetriNetUnfolderBase]: 4/12 cut-off events. [2024-06-28 02:47:10,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 02:47:10,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:47:10,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:47:10,779 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)] === [2024-06-28 02:47:10,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:47:10,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1351939582, now seen corresponding path program 1 times [2024-06-28 02:47:10,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:47:10,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744875787] [2024-06-28 02:47:10,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:47:10,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:47:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:47:11,089 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 02:47:11,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:47:11,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744875787] [2024-06-28 02:47:11,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744875787] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:47:11,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:47:11,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 02:47:11,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351369591] [2024-06-28 02:47:11,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:47:11,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 02:47:11,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:47:11,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 02:47:11,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 02:47:11,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-06-28 02:47:11,198 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) [2024-06-28 02:47:11,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:47:11,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-06-28 02:47:11,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:47:11,397 INFO L124 PetriNetUnfolderBase]: 753/1196 cut-off events. [2024-06-28 02:47:11,397 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-06-28 02:47:11,403 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. [2024-06-28 02:47:11,413 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 42 selfloop transitions, 2 changer transitions 1/53 dead transitions. [2024-06-28 02:47:11,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 220 flow [2024-06-28 02:47:11,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 02:47:11,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 02:47:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-06-28 02:47:11,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-06-28 02:47:11,429 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 93 flow. Second operand 3 states and 81 transitions. [2024-06-28 02:47:11,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 220 flow [2024-06-28 02:47:11,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 206 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-28 02:47:11,437 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 96 flow [2024-06-28 02:47:11,439 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} [2024-06-28 02:47:11,441 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2024-06-28 02:47:11,441 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 96 flow [2024-06-28 02:47:11,442 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) [2024-06-28 02:47:11,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:47:11,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:47:11,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 02:47:11,442 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)] === [2024-06-28 02:47:11,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:47:11,443 INFO L85 PathProgramCache]: Analyzing trace with hash -523688117, now seen corresponding path program 1 times [2024-06-28 02:47:11,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:47:11,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32381939] [2024-06-28 02:47:11,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:47:11,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:47:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:47:11,509 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 02:47:11,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:47:11,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32381939] [2024-06-28 02:47:11,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32381939] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:47:11,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:47:11,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 02:47:11,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831321207] [2024-06-28 02:47:11,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:47:11,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 02:47:11,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:47:11,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 02:47:11,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 02:47:11,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-06-28 02:47:11,519 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) [2024-06-28 02:47:11,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:47:11,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-06-28 02:47:11,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:47:11,764 INFO L124 PetriNetUnfolderBase]: 1067/1708 cut-off events. [2024-06-28 02:47:11,764 INFO L125 PetriNetUnfolderBase]: For 264/264 co-relation queries the response was YES. [2024-06-28 02:47:11,767 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. [2024-06-28 02:47:11,774 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 67 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2024-06-28 02:47:11,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 80 transitions, 334 flow [2024-06-28 02:47:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 02:47:11,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 02:47:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-06-28 02:47:11,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2024-06-28 02:47:11,777 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 96 flow. Second operand 5 states and 131 transitions. [2024-06-28 02:47:11,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 80 transitions, 334 flow [2024-06-28 02:47:11,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 80 transitions, 332 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 02:47:11,781 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 133 flow [2024-06-28 02:47:11,783 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} [2024-06-28 02:47:11,784 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-06-28 02:47:11,784 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 133 flow [2024-06-28 02:47:11,784 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) [2024-06-28 02:47:11,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:47:11,788 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:47:11,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 02:47:11,789 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)] === [2024-06-28 02:47:11,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:47:11,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1869976966, now seen corresponding path program 1 times [2024-06-28 02:47:11,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:47:11,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569091920] [2024-06-28 02:47:11,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:47:11,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:47:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:47:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-28 02:47:11,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:47:11,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569091920] [2024-06-28 02:47:11,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569091920] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:47:11,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:47:11,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 02:47:11,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37950588] [2024-06-28 02:47:11,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:47:11,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 02:47:11,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:47:11,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 02:47:11,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-28 02:47:11,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-06-28 02:47:11,891 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) [2024-06-28 02:47:11,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:47:11,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-06-28 02:47:11,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:47:12,120 INFO L124 PetriNetUnfolderBase]: 1551/2431 cut-off events. [2024-06-28 02:47:12,120 INFO L125 PetriNetUnfolderBase]: For 922/961 co-relation queries the response was YES. [2024-06-28 02:47:12,124 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. [2024-06-28 02:47:12,132 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 30 selfloop transitions, 6 changer transitions 42/87 dead transitions. [2024-06-28 02:47:12,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 394 flow [2024-06-28 02:47:12,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 02:47:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 02:47:12,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-06-28 02:47:12,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5795454545454546 [2024-06-28 02:47:12,134 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 133 flow. Second operand 6 states and 153 transitions. [2024-06-28 02:47:12,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 394 flow [2024-06-28 02:47:12,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 87 transitions, 385 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-28 02:47:12,138 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 170 flow [2024-06-28 02:47:12,138 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} [2024-06-28 02:47:12,139 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2024-06-28 02:47:12,139 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 170 flow [2024-06-28 02:47:12,139 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) [2024-06-28 02:47:12,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:47:12,140 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:47:12,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 02:47:12,140 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)] === [2024-06-28 02:47:12,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:47:12,141 INFO L85 PathProgramCache]: Analyzing trace with hash 911378980, now seen corresponding path program 1 times [2024-06-28 02:47:12,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:47:12,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66414836] [2024-06-28 02:47:12,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:47:12,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:47:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:47:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 02:47:12,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:47:12,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66414836] [2024-06-28 02:47:12,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66414836] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 02:47:12,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111532388] [2024-06-28 02:47:12,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:47:12,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 02:47:12,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 02:47:12,266 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) [2024-06-28 02:47:12,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-28 02:47:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:47:12,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-28 02:47:12,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 02:47:12,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-28 02:47:12,501 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 02:47:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-28 02:47:12,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111532388] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-28 02:47:12,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-28 02:47:12,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-06-28 02:47:12,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698053608] [2024-06-28 02:47:12,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-28 02:47:12,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-28 02:47:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:47:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-28 02:47:12,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-06-28 02:47:12,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2024-06-28 02:47:12,642 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) [2024-06-28 02:47:12,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:47:12,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2024-06-28 02:47:12,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:47:13,153 INFO L124 PetriNetUnfolderBase]: 1817/2756 cut-off events. [2024-06-28 02:47:13,153 INFO L125 PetriNetUnfolderBase]: For 936/936 co-relation queries the response was YES. [2024-06-28 02:47:13,157 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. [2024-06-28 02:47:13,159 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2024-06-28 02:47:13,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 158 transitions, 794 flow [2024-06-28 02:47:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-28 02:47:13,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-28 02:47:13,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 286 transitions. [2024-06-28 02:47:13,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-28 02:47:13,163 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 170 flow. Second operand 13 states and 286 transitions. [2024-06-28 02:47:13,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 158 transitions, 794 flow [2024-06-28 02:47:13,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 158 transitions, 742 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-06-28 02:47:13,172 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-28 02:47:13,172 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} [2024-06-28 02:47:13,173 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2024-06-28 02:47:13,174 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-28 02:47:13,174 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) [2024-06-28 02:47:13,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-28 02:47:13,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-28 02:47:13,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-28 02:47:13,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-28 02:47:13,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-28 02:47:13,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-28 02:47:13,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-28 02:47:13,388 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 [2024-06-28 02:47:13,389 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-28 02:47:13,391 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 02:47:13,391 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 02:47:13,394 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-28 02:47:13,394 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-28 02:47:13,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 02:47:13 BasicIcfg [2024-06-28 02:47:13,395 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 02:47:13,396 INFO L158 Benchmark]: Toolchain (without parser) took 3890.12ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 117.9MB in the beginning and 61.0MB in the end (delta: 56.9MB). Peak memory consumption was 108.4MB. Max. memory is 16.1GB. [2024-06-28 02:47:13,396 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:47:13,396 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:47:13,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.00ms. Allocated memory is still 153.1MB. Free memory was 116.9MB in the beginning and 102.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-28 02:47:13,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.62ms. Allocated memory is still 153.1MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 02:47:13,397 INFO L158 Benchmark]: Boogie Preprocessor took 34.08ms. Allocated memory is still 153.1MB. Free memory was 100.2MB in the beginning and 97.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-28 02:47:13,397 INFO L158 Benchmark]: RCFGBuilder took 756.02ms. Allocated memory is still 153.1MB. Free memory was 97.0MB in the beginning and 71.4MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-28 02:47:13,397 INFO L158 Benchmark]: TraceAbstraction took 2780.45ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 70.4MB in the beginning and 61.0MB in the end (delta: 9.3MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2024-06-28 02:47:13,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.00ms. Allocated memory is still 153.1MB. Free memory was 116.9MB in the beginning and 102.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.62ms. Allocated memory is still 153.1MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.08ms. Allocated memory is still 153.1MB. Free memory was 100.2MB in the beginning and 97.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 756.02ms. Allocated memory is still 153.1MB. Free memory was 97.0MB in the beginning and 71.4MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2780.45ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 70.4MB in the beginning and 61.0MB in the end (delta: 9.3MB). Peak memory consumption was 64.0MB. 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: 2.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 309 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 0.5s 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, 0.1s 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, 0.1s SatisfiabilityAnalysisTime, 0.5s 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! [2024-06-28 02:47:13,418 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