./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 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/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-eb4cb34-m [2024-06-21 20:27:51,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 20:27:51,159 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 20:27:51,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 20:27:51,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 20:27:51,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 20:27:51,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 20:27:51,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 20:27:51,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 20:27:51,184 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 20:27:51,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 20:27:51,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 20:27:51,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 20:27:51,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 20:27:51,186 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 20:27:51,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 20:27:51,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 20:27:51,187 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 20:27:51,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 20:27:51,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 20:27:51,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 20:27:51,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 20:27:51,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 20:27:51,188 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 20:27:51,188 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 20:27:51,188 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 20:27:51,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 20:27:51,189 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 20:27:51,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 20:27:51,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 20:27:51,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 20:27:51,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 20:27:51,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 20:27:51,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 20:27:51,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 20:27:51,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 20:27:51,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 20:27:51,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 20:27:51,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 20:27:51,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 20:27:51,192 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 20:27:51,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 20:27:51,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 20:27:51,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 20:27:51,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 20:27:51,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 20:27:51,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 20:27:51,424 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 20:27:51,424 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 20:27:51,425 INFO L431 ainManager$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 [2024-06-21 20:27:51,491 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 20:27:51,491 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 20:27:51,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-21 20:27:52,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 20:27:52,911 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 20:27:52,912 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-21 20:27:52,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af8e2a5a/52b336a5f84047bc9646d0b07d031bfe/FLAGe620d98a7 [2024-06-21 20:27:52,931 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af8e2a5a/52b336a5f84047bc9646d0b07d031bfe [2024-06-21 20:27:52,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 20:27:52,933 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 20:27:52,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 20:27:52,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 20:27:52,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 20:27:52,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 08:27:51" (1/2) ... [2024-06-21 20:27:52,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2858df74 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 08:27:52, skipping insertion in model container [2024-06-21 20:27:52,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 08:27:51" (1/2) ... [2024-06-21 20:27:52,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@49800373 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 08:27:52, skipping insertion in model container [2024-06-21 20:27:52,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 08:27:52" (2/2) ... [2024-06-21 20:27:52,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2858df74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:52, skipping insertion in model container [2024-06-21 20:27:52,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 08:27:52" (2/2) ... [2024-06-21 20:27:52,943 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 20:27:52,960 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 20:27:52,962 INFO L97 edCorrectnessWitness]: Location invariant before [L97-L97] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-21 20:27:52,962 INFO L97 edCorrectnessWitness]: Location invariant before [L95-L95] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-21 20:27:52,962 INFO L97 edCorrectnessWitness]: Location invariant before [L96-L96] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-21 20:27:52,962 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 20:27:52,962 INFO L106 edCorrectnessWitness]: ghost_update [L94-L94] multithreaded = 1; [2024-06-21 20:27:52,980 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 20:27:53,141 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 20:27:53,149 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-21 20:27:53,220 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 20:27:53,233 INFO L206 MainTranslator]: Completed translation [2024-06-21 20:27:53,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53 WrapperNode [2024-06-21 20:27:53,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 20:27:53,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 20:27:53,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 20:27:53,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 20:27:53,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,283 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 146 [2024-06-21 20:27:53,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 20:27:53,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 20:27:53,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 20:27:53,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 20:27:53,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,320 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 20:27:53,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 20:27:53,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 20:27:53,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 20:27:53,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 20:27:53,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (1/1) ... [2024-06-21 20:27:53,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 20:27:53,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 20:27:53,383 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 20:27:53,387 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 20:27:53,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 20:27:53,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-21 20:27:53,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-21 20:27:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-21 20:27:53,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-21 20:27:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-21 20:27:53,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-21 20:27:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 20:27:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-21 20:27:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-21 20:27:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-21 20:27:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-21 20:27:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-21 20:27:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-21 20:27:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 20:27:53,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 20:27:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-21 20:27:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-21 20:27:53,454 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 20:27:53,539 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 20:27:53,540 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 20:27:53,763 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 20:27:53,763 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 20:27:53,974 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 20:27:53,974 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-21 20:27:53,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 08:27:53 BoogieIcfgContainer [2024-06-21 20:27:53,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 20:27:53,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 20:27:53,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 20:27:53,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 20:27:53,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 08:27:51" (1/4) ... [2024-06-21 20:27:53,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13da9332 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 08:27:53, skipping insertion in model container [2024-06-21 20:27:53,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 08:27:52" (2/4) ... [2024-06-21 20:27:53,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13da9332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 08:27:53, skipping insertion in model container [2024-06-21 20:27:53,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:53" (3/4) ... [2024-06-21 20:27:53,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13da9332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 08:27:53, skipping insertion in model container [2024-06-21 20:27:53,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 08:27:53" (4/4) ... [2024-06-21 20:27:53,983 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-06-21 20:27:53,995 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 20:27:53,996 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-21 20:27:53,996 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 20:27:54,034 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-21 20:27:54,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 109 flow [2024-06-21 20:27:54,089 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-06-21 20:27:54,089 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-21 20:27:54,093 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 20:27:54,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 44 transitions, 109 flow [2024-06-21 20:27:54,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 39 transitions, 93 flow [2024-06-21 20:27:54,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 20:27:54,115 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;@26e169cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 20:27:54,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-21 20:27:54,123 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 20:27:54,123 INFO L124 PetriNetUnfolderBase]: 4/12 cut-off events. [2024-06-21 20:27:54,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 20:27:54,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:54,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 20:27:54,124 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 20:27:54,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:54,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1351939582, now seen corresponding path program 1 times [2024-06-21 20:27:54,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:54,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440037231] [2024-06-21 20:27:54,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:54,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:54,379 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 20:27:54,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:54,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440037231] [2024-06-21 20:27:54,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440037231] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 20:27:54,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 20:27:54,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 20:27:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299607332] [2024-06-21 20:27:54,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 20:27:54,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 20:27:54,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:54,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 20:27:54,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 20:27:54,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-06-21 20:27:54,428 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 20:27:54,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:54,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-06-21 20:27:54,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:54,646 INFO L124 PetriNetUnfolderBase]: 753/1196 cut-off events. [2024-06-21 20:27:54,646 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-06-21 20:27:54,650 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 20:27:54,655 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 42 selfloop transitions, 2 changer transitions 1/53 dead transitions. [2024-06-21 20:27:54,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 220 flow [2024-06-21 20:27:54,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 20:27:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 20:27:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-06-21 20:27:54,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-06-21 20:27:54,665 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 93 flow. Second operand 3 states and 81 transitions. [2024-06-21 20:27:54,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 220 flow [2024-06-21 20:27:54,669 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 20:27:54,670 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 96 flow [2024-06-21 20:27:54,672 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 20:27:54,674 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2024-06-21 20:27:54,688 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 96 flow [2024-06-21 20:27:54,688 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 20:27:54,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:54,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 20:27:54,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 20:27:54,689 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 20:27:54,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash -523688117, now seen corresponding path program 1 times [2024-06-21 20:27:54,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:54,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896132229] [2024-06-21 20:27:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:54,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:54,780 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 20:27:54,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:54,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896132229] [2024-06-21 20:27:54,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896132229] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 20:27:54,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 20:27:54,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 20:27:54,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125071940] [2024-06-21 20:27:54,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 20:27:54,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 20:27:54,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:54,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 20:27:54,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-21 20:27:54,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-06-21 20:27:54,790 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 20:27:54,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:54,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-06-21 20:27:54,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:54,981 INFO L124 PetriNetUnfolderBase]: 1067/1708 cut-off events. [2024-06-21 20:27:54,982 INFO L125 PetriNetUnfolderBase]: For 264/264 co-relation queries the response was YES. [2024-06-21 20:27:54,985 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 20:27:54,990 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 67 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2024-06-21 20:27:54,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 80 transitions, 334 flow [2024-06-21 20:27:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 20:27:54,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 20:27:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-06-21 20:27:54,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2024-06-21 20:27:54,992 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 96 flow. Second operand 5 states and 131 transitions. [2024-06-21 20:27:54,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 80 transitions, 334 flow [2024-06-21 20:27:54,993 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 20:27:54,994 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 133 flow [2024-06-21 20:27:54,994 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 20:27:54,995 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-06-21 20:27:54,995 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 133 flow [2024-06-21 20:27:54,995 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 20:27:54,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:54,995 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 20:27:54,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 20:27:54,996 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 20:27:54,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:54,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1869976966, now seen corresponding path program 1 times [2024-06-21 20:27:54,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:54,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713720476] [2024-06-21 20:27:54,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:54,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:55,080 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 20:27:55,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:55,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713720476] [2024-06-21 20:27:55,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713720476] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 20:27:55,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 20:27:55,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 20:27:55,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502419649] [2024-06-21 20:27:55,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 20:27:55,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 20:27:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:55,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 20:27:55,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 20:27:55,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-06-21 20:27:55,089 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 20:27:55,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:55,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-06-21 20:27:55,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:55,302 INFO L124 PetriNetUnfolderBase]: 1551/2431 cut-off events. [2024-06-21 20:27:55,302 INFO L125 PetriNetUnfolderBase]: For 922/961 co-relation queries the response was YES. [2024-06-21 20:27:55,306 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 20:27:55,312 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 30 selfloop transitions, 6 changer transitions 42/87 dead transitions. [2024-06-21 20:27:55,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 394 flow [2024-06-21 20:27:55,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 20:27:55,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 20:27:55,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-06-21 20:27:55,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5795454545454546 [2024-06-21 20:27:55,314 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 133 flow. Second operand 6 states and 153 transitions. [2024-06-21 20:27:55,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 394 flow [2024-06-21 20:27:55,318 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 20:27:55,319 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 170 flow [2024-06-21 20:27:55,319 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 20:27:55,319 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2024-06-21 20:27:55,320 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 170 flow [2024-06-21 20:27:55,320 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 20:27:55,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:55,320 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 20:27:55,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 20:27:55,320 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 20:27:55,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:55,321 INFO L85 PathProgramCache]: Analyzing trace with hash 911378980, now seen corresponding path program 1 times [2024-06-21 20:27:55,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:55,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899714605] [2024-06-21 20:27:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:55,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:55,386 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 20:27:55,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:55,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899714605] [2024-06-21 20:27:55,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899714605] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-21 20:27:55,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341453035] [2024-06-21 20:27:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:55,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-21 20:27:55,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 20:27:55,389 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 20:27:55,432 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 20:27:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:55,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-21 20:27:55,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-21 20:27:55,578 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 20:27:55,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-21 20:27:55,648 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 20:27:55,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341453035] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-21 20:27:55,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-21 20:27:55,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-06-21 20:27:55,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411462082] [2024-06-21 20:27:55,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-21 20:27:55,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-21 20:27:55,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:55,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-21 20:27:55,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-06-21 20:27:55,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2024-06-21 20:27:55,723 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 20:27:55,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:55,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2024-06-21 20:27:55,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:56,212 INFO L124 PetriNetUnfolderBase]: 1817/2756 cut-off events. [2024-06-21 20:27:56,212 INFO L125 PetriNetUnfolderBase]: For 936/936 co-relation queries the response was YES. [2024-06-21 20:27:56,217 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 20:27:56,219 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2024-06-21 20:27:56,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 158 transitions, 794 flow [2024-06-21 20:27:56,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-21 20:27:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-21 20:27:56,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 286 transitions. [2024-06-21 20:27:56,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-21 20:27:56,221 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 170 flow. Second operand 13 states and 286 transitions. [2024-06-21 20:27:56,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 158 transitions, 794 flow [2024-06-21 20:27:56,229 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 20:27:56,229 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-21 20:27:56,230 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 20:27:56,230 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2024-06-21 20:27:56,230 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-21 20:27:56,231 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 20:27:56,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-21 20:27:56,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-21 20:27:56,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-21 20:27:56,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-21 20:27:56,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-21 20:27:56,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-21 20:27:56,263 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 20:27:56,466 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 20:27:56,466 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-21 20:27:56,469 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-21 20:27:56,469 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-21 20:27:56,472 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-21 20:27:56,472 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-21 20:27:56,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 08:27:56 BasicIcfg [2024-06-21 20:27:56,473 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-21 20:27:56,474 INFO L158 Benchmark]: Toolchain (without parser) took 3540.59ms. Allocated memory was 132.1MB in the beginning and 218.1MB in the end (delta: 86.0MB). Free memory was 73.5MB in the beginning and 117.2MB in the end (delta: -43.7MB). Peak memory consumption was 113.1MB. Max. memory is 16.1GB. [2024-06-21 20:27:56,474 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 132.1MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 20:27:56,474 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 20:27:56,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.85ms. Allocated memory is still 132.1MB. Free memory was 73.5MB in the beginning and 58.2MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-21 20:27:56,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.30ms. Allocated memory is still 132.1MB. Free memory was 58.2MB in the beginning and 56.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 20:27:56,475 INFO L158 Benchmark]: Boogie Preprocessor took 72.35ms. Allocated memory is still 132.1MB. Free memory was 56.2MB in the beginning and 53.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 20:27:56,476 INFO L158 Benchmark]: RCFGBuilder took 618.29ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 53.4MB in the beginning and 87.7MB in the end (delta: -34.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-06-21 20:27:56,476 INFO L158 Benchmark]: TraceAbstraction took 2496.60ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 86.6MB in the beginning and 117.2MB in the end (delta: -30.6MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2024-06-21 20:27:56,478 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 0.15ms. Allocated memory is still 132.1MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.85ms. Allocated memory is still 132.1MB. Free memory was 73.5MB in the beginning and 58.2MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.30ms. Allocated memory is still 132.1MB. Free memory was 58.2MB in the beginning and 56.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.35ms. Allocated memory is still 132.1MB. Free memory was 56.2MB in the beginning and 53.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.29ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 53.4MB in the beginning and 87.7MB in the end (delta: -34.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2496.60ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 86.6MB in the beginning and 117.2MB in the end (delta: -30.6MB). Peak memory consumption was 90.1MB. 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, 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, 0.4s 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 20:27:56,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE