./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 eb4cb34f 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-eb4cb34-m [2024-06-21 16:06:46,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 16:06:46,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 16:06:46,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 16:06:46,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 16:06:46,887 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 16:06:46,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 16:06:46,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 16:06:46,897 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 16:06:46,898 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 16:06:46,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 16:06:46,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 16:06:46,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 16:06:46,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 16:06:46,901 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 16:06:46,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 16:06:46,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 16:06:46,905 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 16:06:46,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 16:06:46,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 16:06:46,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 16:06:46,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 16:06:46,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 16:06:46,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 16:06:46,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 16:06:46,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 16:06:46,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 16:06:46,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 16:06:46,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 16:06:46,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 16:06:46,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 16:06:46,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 16:06:46,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 16:06:46,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 16:06:46,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 16:06:46,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 16:06:46,910 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 16:06:46,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 16:06:46,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 16:06:46,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 16:06:46,910 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 16:06:46,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 16:06:46,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 16:06:46,911 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 16:06:47,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 16:06:47,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 16:06:47,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 16:06:47,167 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 16:06:47,167 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 16:06:47,168 INFO L431 ainManager$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 [2024-06-21 16:06:47,234 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 16:06:47,235 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 16:06:47,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-21 16:06:48,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 16:06:48,490 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 16:06:48,490 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-21 16:06:48,496 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6f36dfe/2314ebd8dd43412ca6f32455115c389d/FLAG2193616dd [2024-06-21 16:06:48,505 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6f36dfe/2314ebd8dd43412ca6f32455115c389d [2024-06-21 16:06:48,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 16:06:48,506 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 16:06:48,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 16:06:48,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 16:06:48,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 16:06:48,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:06:47" (1/2) ... [2024-06-21 16:06:48,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c140393 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 04:06:48, skipping insertion in model container [2024-06-21 16:06:48,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:06:47" (1/2) ... [2024-06-21 16:06:48,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ca20c85 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 04:06:48, skipping insertion in model container [2024-06-21 16:06:48,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 04:06:48" (2/2) ... [2024-06-21 16:06:48,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c140393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48, skipping insertion in model container [2024-06-21 16:06:48,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 04:06:48" (2/2) ... [2024-06-21 16:06:48,518 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 16:06:48,532 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 16:06:48,532 INFO L97 edCorrectnessWitness]: Location invariant before [L97-L97] ! multithreaded || 0 <= p [2024-06-21 16:06:48,536 INFO L97 edCorrectnessWitness]: Location invariant before [L96-L96] ! multithreaded || 0 <= p [2024-06-21 16:06:48,536 INFO L97 edCorrectnessWitness]: Location invariant before [L95-L95] ! multithreaded || 0 <= p [2024-06-21 16:06:48,537 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 16:06:48,537 INFO L106 edCorrectnessWitness]: ghost_update [L94-L94] multithreaded = 1; [2024-06-21 16:06:48,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 16:06:48,732 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 16:06:48,739 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-21 16:06:48,804 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 16:06:48,815 INFO L206 MainTranslator]: Completed translation [2024-06-21 16:06:48,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48 WrapperNode [2024-06-21 16:06:48,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 16:06:48,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 16:06:48,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 16:06:48,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 16:06:48,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,862 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 146 [2024-06-21 16:06:48,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 16:06:48,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 16:06:48,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 16:06:48,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 16:06:48,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,902 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]. [2024-06-21 16:06:48,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 16:06:48,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 16:06:48,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 16:06:48,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 16:06:48,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (1/1) ... [2024-06-21 16:06:48,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 16:06:48,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 16:06:48,982 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) [2024-06-21 16:06:48,998 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 [2024-06-21 16:06:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 16:06:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-21 16:06:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-21 16:06:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-21 16:06:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-21 16:06:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-21 16:06:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-21 16:06:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 16:06:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-21 16:06:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-21 16:06:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-21 16:06:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-21 16:06:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-21 16:06:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-21 16:06:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 16:06:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 16:06:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-21 16:06:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-21 16:06:49,011 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-21 16:06:49,099 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 16:06:49,100 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 16:06:49,389 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 16:06:49,389 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 16:06:49,592 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 16:06:49,592 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-21 16:06:49,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 04:06:49 BoogieIcfgContainer [2024-06-21 16:06:49,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 16:06:49,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 16:06:49,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 16:06:49,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 16:06:49,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:06:47" (1/4) ... [2024-06-21 16:06:49,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53066a5a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 04:06:49, skipping insertion in model container [2024-06-21 16:06:49,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 04:06:48" (2/4) ... [2024-06-21 16:06:49,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53066a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 04:06:49, skipping insertion in model container [2024-06-21 16:06:49,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:06:48" (3/4) ... [2024-06-21 16:06:49,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53066a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 04:06:49, skipping insertion in model container [2024-06-21 16:06:49,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 04:06:49" (4/4) ... [2024-06-21 16:06:49,604 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-06-21 16:06:49,616 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 16:06:49,616 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-21 16:06:49,616 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 16:06:49,650 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-21 16:06:49,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 109 flow [2024-06-21 16:06:49,711 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-06-21 16:06:49,712 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-21 16:06:49,714 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. [2024-06-21 16:06:49,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 44 transitions, 109 flow [2024-06-21 16:06:49,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 39 transitions, 93 flow [2024-06-21 16:06:49,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 16:06:49,730 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;@38b486e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 16:06:49,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-21 16:06:49,736 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 16:06:49,737 INFO L124 PetriNetUnfolderBase]: 4/12 cut-off events. [2024-06-21 16:06:49,737 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 16:06:49,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:49,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:49,738 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)] === [2024-06-21 16:06:49,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:49,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1351939582, now seen corresponding path program 1 times [2024-06-21 16:06:49,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:49,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637478605] [2024-06-21 16:06:49,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:49,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 16:06:49,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:49,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637478605] [2024-06-21 16:06:49,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637478605] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:49,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:49,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 16:06:49,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633857594] [2024-06-21 16:06:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:49,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 16:06:50,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:50,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 16:06:50,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 16:06:50,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-06-21 16:06:50,042 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) [2024-06-21 16:06:50,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:50,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-06-21 16:06:50,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:50,256 INFO L124 PetriNetUnfolderBase]: 753/1196 cut-off events. [2024-06-21 16:06:50,256 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-06-21 16:06:50,262 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. [2024-06-21 16:06:50,269 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 42 selfloop transitions, 2 changer transitions 1/53 dead transitions. [2024-06-21 16:06:50,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 220 flow [2024-06-21 16:06:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:06:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:06:50,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-06-21 16:06:50,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-06-21 16:06:50,281 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 93 flow. Second operand 3 states and 81 transitions. [2024-06-21 16:06:50,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 220 flow [2024-06-21 16:06:50,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 206 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-21 16:06:50,290 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 96 flow [2024-06-21 16:06:50,291 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} [2024-06-21 16:06:50,296 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2024-06-21 16:06:50,296 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 96 flow [2024-06-21 16:06:50,296 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) [2024-06-21 16:06:50,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:50,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:50,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 16:06:50,297 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)] === [2024-06-21 16:06:50,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:50,298 INFO L85 PathProgramCache]: Analyzing trace with hash -523688117, now seen corresponding path program 1 times [2024-06-21 16:06:50,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:50,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913562868] [2024-06-21 16:06:50,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:50,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 16:06:50,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:50,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913562868] [2024-06-21 16:06:50,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913562868] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:50,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:50,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 16:06:50,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083579636] [2024-06-21 16:06:50,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:50,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 16:06:50,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:50,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 16:06:50,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-21 16:06:50,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-06-21 16:06:50,447 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) [2024-06-21 16:06:50,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:50,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-06-21 16:06:50,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:50,636 INFO L124 PetriNetUnfolderBase]: 1067/1708 cut-off events. [2024-06-21 16:06:50,636 INFO L125 PetriNetUnfolderBase]: For 264/264 co-relation queries the response was YES. [2024-06-21 16:06:50,639 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. [2024-06-21 16:06:50,644 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 67 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2024-06-21 16:06:50,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 80 transitions, 334 flow [2024-06-21 16:06:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 16:06:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 16:06:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-06-21 16:06:50,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2024-06-21 16:06:50,646 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 96 flow. Second operand 5 states and 131 transitions. [2024-06-21 16:06:50,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 80 transitions, 334 flow [2024-06-21 16:06:50,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 80 transitions, 332 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 16:06:50,648 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 133 flow [2024-06-21 16:06:50,649 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} [2024-06-21 16:06:50,649 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-06-21 16:06:50,649 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 133 flow [2024-06-21 16:06:50,649 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) [2024-06-21 16:06:50,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:50,650 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:50,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 16:06:50,650 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)] === [2024-06-21 16:06:50,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:50,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1869976966, now seen corresponding path program 1 times [2024-06-21 16:06:50,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:50,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440747201] [2024-06-21 16:06:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:50,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:50,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-21 16:06:50,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:50,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440747201] [2024-06-21 16:06:50,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440747201] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:50,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:50,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 16:06:50,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333593646] [2024-06-21 16:06:50,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:50,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 16:06:50,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:50,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 16:06:50,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 16:06:50,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-06-21 16:06:50,760 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) [2024-06-21 16:06:50,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:50,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-06-21 16:06:50,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:50,997 INFO L124 PetriNetUnfolderBase]: 1551/2431 cut-off events. [2024-06-21 16:06:50,998 INFO L125 PetriNetUnfolderBase]: For 922/961 co-relation queries the response was YES. [2024-06-21 16:06:51,006 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. [2024-06-21 16:06:51,012 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 30 selfloop transitions, 6 changer transitions 42/87 dead transitions. [2024-06-21 16:06:51,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 394 flow [2024-06-21 16:06:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 16:06:51,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 16:06:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-06-21 16:06:51,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5795454545454546 [2024-06-21 16:06:51,014 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 133 flow. Second operand 6 states and 153 transitions. [2024-06-21 16:06:51,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 394 flow [2024-06-21 16:06:51,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 87 transitions, 385 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-21 16:06:51,018 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 170 flow [2024-06-21 16:06:51,019 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} [2024-06-21 16:06:51,019 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2024-06-21 16:06:51,019 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 170 flow [2024-06-21 16:06:51,020 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) [2024-06-21 16:06:51,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:51,020 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:51,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 16:06:51,020 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)] === [2024-06-21 16:06:51,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:51,021 INFO L85 PathProgramCache]: Analyzing trace with hash 911378980, now seen corresponding path program 1 times [2024-06-21 16:06:51,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:51,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539906800] [2024-06-21 16:06:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:51,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:51,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-21 16:06:51,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:51,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539906800] [2024-06-21 16:06:51,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539906800] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-21 16:06:51,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325556790] [2024-06-21 16:06:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:51,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-21 16:06:51,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 16:06:51,084 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) [2024-06-21 16:06:51,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-21 16:06:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:51,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-21 16:06:51,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-21 16:06:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-21 16:06:51,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-21 16:06:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-21 16:06:51,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325556790] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-21 16:06:51,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-21 16:06:51,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-06-21 16:06:51,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020228556] [2024-06-21 16:06:51,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-21 16:06:51,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-21 16:06:51,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-21 16:06:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-06-21 16:06:51,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2024-06-21 16:06:51,364 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) [2024-06-21 16:06:51,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:51,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2024-06-21 16:06:51,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:51,899 INFO L124 PetriNetUnfolderBase]: 1817/2756 cut-off events. [2024-06-21 16:06:51,900 INFO L125 PetriNetUnfolderBase]: For 936/936 co-relation queries the response was YES. [2024-06-21 16:06:51,903 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. [2024-06-21 16:06:51,905 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2024-06-21 16:06:51,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 158 transitions, 794 flow [2024-06-21 16:06:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-21 16:06:51,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-21 16:06:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 286 transitions. [2024-06-21 16:06:51,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-21 16:06:51,907 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 170 flow. Second operand 13 states and 286 transitions. [2024-06-21 16:06:51,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 158 transitions, 794 flow [2024-06-21 16:06:51,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 158 transitions, 742 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-06-21 16:06:51,916 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-21 16:06:51,916 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} [2024-06-21 16:06:51,917 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2024-06-21 16:06:51,917 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-21 16:06:51,917 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) [2024-06-21 16:06:51,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-21 16:06:51,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-21 16:06:51,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-21 16:06:51,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-21 16:06:51,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-21 16:06:51,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-21 16:06:51,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-21 16:06:52,132 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 [2024-06-21 16:06:52,133 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-21 16:06:52,136 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-21 16:06:52,136 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-21 16:06:52,140 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-21 16:06:52,140 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-21 16:06:52,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 04:06:52 BasicIcfg [2024-06-21 16:06:52,141 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-21 16:06:52,142 INFO L158 Benchmark]: Toolchain (without parser) took 3635.27ms. Allocated memory was 125.8MB in the beginning and 209.7MB in the end (delta: 83.9MB). Free memory was 72.0MB in the beginning and 147.2MB in the end (delta: -75.2MB). Peak memory consumption was 117.7MB. Max. memory is 16.1GB. [2024-06-21 16:06:52,142 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 16:06:52,142 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 16:06:52,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.82ms. Allocated memory is still 125.8MB. Free memory was 71.7MB in the beginning and 56.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-21 16:06:52,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.45ms. Allocated memory is still 125.8MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 16:06:52,144 INFO L158 Benchmark]: Boogie Preprocessor took 74.29ms. Allocated memory is still 125.8MB. Free memory was 54.5MB in the beginning and 51.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 16:06:52,144 INFO L158 Benchmark]: RCFGBuilder took 655.57ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 51.9MB in the beginning and 84.0MB in the end (delta: -32.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-21 16:06:52,144 INFO L158 Benchmark]: TraceAbstraction took 2544.65ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 84.0MB in the beginning and 147.2MB in the end (delta: -63.2MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. [2024-06-21 16:06:52,146 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 0.16ms. Allocated memory is still 125.8MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.82ms. Allocated memory is still 125.8MB. Free memory was 71.7MB in the beginning and 56.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.45ms. Allocated memory is still 125.8MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.29ms. Allocated memory is still 125.8MB. Free memory was 54.5MB in the beginning and 51.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 655.57ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 51.9MB in the beginning and 84.0MB in the end (delta: -32.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2544.65ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 84.0MB in the beginning and 147.2MB in the end (delta: -63.2MB). Peak memory consumption was 99.2MB. 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: 2.5s, 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! [2024-06-21 16:06:52,184 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