./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-sre-trans.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/chl-sre-trans.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/chl-sre-trans.wvr.c ./goblint.2024-06-19_11-23-25.files/protection/chl-sre-trans.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 16:05:57,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 16:05:57,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 16:05:57,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 16:05:57,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 16:05:57,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 16:05:57,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 16:05:57,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 16:05:57,493 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 16:05:57,495 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 16:05:57,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 16:05:57,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 16:05:57,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 16:05:57,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 16:05:57,498 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 16:05:57,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 16:05:57,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 16:05:57,499 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 16:05:57,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 16:05:57,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 16:05:57,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 16:05:57,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 16:05:57,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 16:05:57,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 16:05:57,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 16:05:57,500 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 16:05:57,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 16:05:57,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 16:05:57,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 16:05:57,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 16:05:57,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 16:05:57,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 16:05:57,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 16:05:57,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 16:05:57,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 16:05:57,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 16:05:57,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 16:05:57,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 16:05:57,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 16:05:57,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 16:05:57,504 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 16:05:57,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 16:05:57,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 16:05:57,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 16:05:57,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 16:05:57,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 16:05:57,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 16:05:57,745 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 16:05:57,746 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 16:05:57,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/chl-sre-trans.wvr.yml/witness.yml [2024-06-21 16:05:57,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 16:05:57,858 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 16:05:57,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2024-06-21 16:05:58,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 16:05:58,970 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 16:05:58,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2024-06-21 16:05:58,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42a1301e/3b90a04e2bb6403290054ac249bce1e8/FLAG7033dc3c9 [2024-06-21 16:05:58,986 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42a1301e/3b90a04e2bb6403290054ac249bce1e8 [2024-06-21 16:05:58,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 16:05:58,987 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 16:05:58,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 16:05:58,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 16:05:58,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 16:05:58,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:05:57" (1/2) ... [2024-06-21 16:05:58,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53543095 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 04:05:58, skipping insertion in model container [2024-06-21 16:05:58,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:05:57" (1/2) ... [2024-06-21 16:05:58,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@585be397 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 04:05:58, skipping insertion in model container [2024-06-21 16:05:58,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 04:05:58" (2/2) ... [2024-06-21 16:05:58,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53543095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:58, skipping insertion in model container [2024-06-21 16:05:58,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 04:05:58" (2/2) ... [2024-06-21 16:05:58,994 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 16:05:59,027 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 16:05:59,028 INFO L97 edCorrectnessWitness]: Location invariant before [L71-L71] ((! multithreaded || ((result_5 == -1 || result_5 == 0) || result_5 == 1)) && (! multithreaded || ((result_4 == -1 || result_4 == 0) || result_4 == 1))) && (! multithreaded || ((result_3 == -1 || result_3 == 0) || result_3 == 1)) [2024-06-21 16:05:59,028 INFO L97 edCorrectnessWitness]: Location invariant before [L69-L69] ((! multithreaded || ((result_5 == -1 || result_5 == 0) || result_5 == 1)) && (! multithreaded || ((result_4 == -1 || result_4 == 0) || result_4 == 1))) && (! multithreaded || ((result_3 == -1 || result_3 == 0) || result_3 == 1)) [2024-06-21 16:05:59,028 INFO L97 edCorrectnessWitness]: Location invariant before [L70-L70] ((! multithreaded || ((result_5 == -1 || result_5 == 0) || result_5 == 1)) && (! multithreaded || ((result_4 == -1 || result_4 == 0) || result_4 == 1))) && (! multithreaded || ((result_3 == -1 || result_3 == 0) || result_3 == 1)) [2024-06-21 16:05:59,028 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 16:05:59,028 INFO L106 edCorrectnessWitness]: ghost_update [L68-L68] multithreaded = 1; [2024-06-21 16:05:59,041 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 16:05:59,158 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 16:05:59,169 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-21 16:05:59,211 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 16:05:59,224 INFO L206 MainTranslator]: Completed translation [2024-06-21 16:05:59,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59 WrapperNode [2024-06-21 16:05:59,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 16:05:59,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 16:05:59,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 16:05:59,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 16:05:59,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,257 INFO L138 Inliner]: procedures = 21, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-06-21 16:05:59,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 16:05:59,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 16:05:59,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 16:05:59,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 16:05:59,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,294 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-21 16:05:59,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 16:05:59,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 16:05:59,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 16:05:59,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 16:05:59,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (1/1) ... [2024-06-21 16:05:59,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 16:05:59,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 16:05:59,388 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 16:05:59,396 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 16:05:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 16:05:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-21 16:05:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-21 16:05:59,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-21 16:05:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-21 16:05:59,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-21 16:05:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-21 16:05:59,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 16:05:59,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 16:05:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 16:05:59,419 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 16:05:59,492 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 16:05:59,493 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 16:05:59,625 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 16:05:59,626 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 16:05:59,718 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 16:05:59,718 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-21 16:05:59,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 04:05:59 BoogieIcfgContainer [2024-06-21 16:05:59,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 16:05:59,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 16:05:59,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 16:05:59,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 16:05:59,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:05:57" (1/4) ... [2024-06-21 16:05:59,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462829f3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 04:05:59, skipping insertion in model container [2024-06-21 16:05:59,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 04:05:58" (2/4) ... [2024-06-21 16:05:59,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462829f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 04:05:59, skipping insertion in model container [2024-06-21 16:05:59,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:59" (3/4) ... [2024-06-21 16:05:59,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462829f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 04:05:59, skipping insertion in model container [2024-06-21 16:05:59,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 04:05:59" (4/4) ... [2024-06-21 16:05:59,725 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2024-06-21 16:05:59,740 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 16:05:59,740 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-21 16:05:59,740 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 16:05:59,794 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-21 16:05:59,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 69 flow [2024-06-21 16:05:59,836 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-06-21 16:05:59,836 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-21 16:05:59,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 21 events. 0/21 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-21 16:05:59,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 24 transitions, 69 flow [2024-06-21 16:05:59,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 16 transitions, 41 flow [2024-06-21 16:05:59,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 16:05:59,852 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;@671caf9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 16:05:59,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-21 16:05:59,856 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 16:05:59,860 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-21 16:05:59,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 16:05:59,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:05:59,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-21 16:05:59,861 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 16:05:59,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:05:59,865 INFO L85 PathProgramCache]: Analyzing trace with hash 194479781, now seen corresponding path program 1 times [2024-06-21 16:05:59,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:05:59,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237405320] [2024-06-21 16:05:59,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:05:59,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:05:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:00,121 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 16:06:00,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:00,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237405320] [2024-06-21 16:06:00,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237405320] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:00,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:00,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 16:06:00,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440444698] [2024-06-21 16:06:00,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:00,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 16:06:00,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:00,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 16:06:00,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 16:06:00,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-21 16:06:00,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 16:06:00,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:00,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-21 16:06:00,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:00,250 INFO L124 PetriNetUnfolderBase]: 43/90 cut-off events. [2024-06-21 16:06:00,250 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-21 16:06:00,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 90 events. 43/90 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 228 event pairs, 8 based on Foata normal form. 1/87 useless extension candidates. Maximal degree in co-relation 186. Up to 81 conditions per place. [2024-06-21 16:06:00,256 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 21 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-06-21 16:06:00,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 26 transitions, 117 flow [2024-06-21 16:06:00,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:06:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:06:00,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-06-21 16:06:00,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5972222222222222 [2024-06-21 16:06:00,268 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 43 transitions. [2024-06-21 16:06:00,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 26 transitions, 117 flow [2024-06-21 16:06:00,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-21 16:06:00,271 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 68 flow [2024-06-21 16:06:00,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2024-06-21 16:06:00,275 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2024-06-21 16:06:00,275 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 68 flow [2024-06-21 16:06:00,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 16:06:00,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:00,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-21 16:06:00,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 16:06:00,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 16:06:00,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:00,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1733906514, now seen corresponding path program 1 times [2024-06-21 16:06:00,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:00,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318189087] [2024-06-21 16:06:00,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:00,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:00,542 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 16:06:00,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:00,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318189087] [2024-06-21 16:06:00,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318189087] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:00,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:00,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 16:06:00,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823813152] [2024-06-21 16:06:00,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:00,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 16:06:00,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:00,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 16:06:00,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 16:06:00,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-21 16:06:00,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 16:06:00,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:00,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-21 16:06:00,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:00,593 INFO L124 PetriNetUnfolderBase]: 40/84 cut-off events. [2024-06-21 16:06:00,593 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-06-21 16:06:00,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 84 events. 40/84 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 194 event pairs, 9 based on Foata normal form. 3/87 useless extension candidates. Maximal degree in co-relation 244. Up to 60 conditions per place. [2024-06-21 16:06:00,594 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 18 selfloop transitions, 5 changer transitions 0/24 dead transitions. [2024-06-21 16:06:00,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 128 flow [2024-06-21 16:06:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:06:00,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:06:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2024-06-21 16:06:00,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-06-21 16:06:00,596 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 68 flow. Second operand 3 states and 39 transitions. [2024-06-21 16:06:00,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 128 flow [2024-06-21 16:06:00,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 16:06:00,597 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 91 flow [2024-06-21 16:06:00,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2024-06-21 16:06:00,598 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2024-06-21 16:06:00,598 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 91 flow [2024-06-21 16:06:00,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 16:06:00,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:00,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:00,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 16:06:00,599 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 16:06:00,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:00,599 INFO L85 PathProgramCache]: Analyzing trace with hash -774016592, now seen corresponding path program 1 times [2024-06-21 16:06:00,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:00,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367129953] [2024-06-21 16:06:00,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:00,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:00,720 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 16:06:00,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:00,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367129953] [2024-06-21 16:06:00,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367129953] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:00,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:00,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 16:06:00,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975839666] [2024-06-21 16:06:00,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:00,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 16:06:00,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:00,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 16:06:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 16:06:00,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-21 16:06:00,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 16:06:00,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:00,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-21 16:06:00,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:00,796 INFO L124 PetriNetUnfolderBase]: 37/79 cut-off events. [2024-06-21 16:06:00,797 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-06-21 16:06:00,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 79 events. 37/79 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 177 event pairs, 5 based on Foata normal form. 2/81 useless extension candidates. Maximal degree in co-relation 259. Up to 61 conditions per place. [2024-06-21 16:06:00,800 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 23 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2024-06-21 16:06:00,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 175 flow [2024-06-21 16:06:00,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:06:00,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:06:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2024-06-21 16:06:00,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2024-06-21 16:06:00,802 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 91 flow. Second operand 3 states and 41 transitions. [2024-06-21 16:06:00,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 175 flow [2024-06-21 16:06:00,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 16:06:00,805 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 119 flow [2024-06-21 16:06:00,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2024-06-21 16:06:00,806 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2024-06-21 16:06:00,806 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 119 flow [2024-06-21 16:06:00,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 16:06:00,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:00,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:00,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 16:06:00,807 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 16:06:00,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:00,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1775288733, now seen corresponding path program 1 times [2024-06-21 16:06:00,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:00,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423555628] [2024-06-21 16:06:00,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:00,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:00,986 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 16:06:00,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:00,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423555628] [2024-06-21 16:06:00,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423555628] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:00,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:00,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 16:06:00,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200887671] [2024-06-21 16:06:00,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:00,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 16:06:00,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:00,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 16:06:00,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-21 16:06:01,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-21 16:06:01,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 16:06:01,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:01,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-21 16:06:01,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:01,027 INFO L124 PetriNetUnfolderBase]: 36/76 cut-off events. [2024-06-21 16:06:01,027 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-06-21 16:06:01,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 76 events. 36/76 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 144 event pairs, 15 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 279. Up to 48 conditions per place. [2024-06-21 16:06:01,028 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 16 selfloop transitions, 5 changer transitions 0/22 dead transitions. [2024-06-21 16:06:01,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 155 flow [2024-06-21 16:06:01,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:06:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:06:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2024-06-21 16:06:01,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-06-21 16:06:01,032 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 119 flow. Second operand 3 states and 33 transitions. [2024-06-21 16:06:01,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 155 flow [2024-06-21 16:06:01,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 16:06:01,033 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 123 flow [2024-06-21 16:06:01,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2024-06-21 16:06:01,034 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2024-06-21 16:06:01,034 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 123 flow [2024-06-21 16:06:01,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 16:06:01,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:01,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:01,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-21 16:06:01,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 16:06:01,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:01,035 INFO L85 PathProgramCache]: Analyzing trace with hash 949739961, now seen corresponding path program 1 times [2024-06-21 16:06:01,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:01,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798861511] [2024-06-21 16:06:01,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:01,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:01,124 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 16:06:01,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:01,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798861511] [2024-06-21 16:06:01,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798861511] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:01,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:01,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 16:06:01,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611813389] [2024-06-21 16:06:01,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:01,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 16:06:01,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:01,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 16:06:01,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 16:06:01,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-21 16:06:01,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 16:06:01,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:01,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-21 16:06:01,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:01,179 INFO L124 PetriNetUnfolderBase]: 34/73 cut-off events. [2024-06-21 16:06:01,179 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2024-06-21 16:06:01,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 73 events. 34/73 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 156 event pairs, 1 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 268. Up to 61 conditions per place. [2024-06-21 16:06:01,181 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 24 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2024-06-21 16:06:01,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 211 flow [2024-06-21 16:06:01,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:06:01,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:06:01,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2024-06-21 16:06:01,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-06-21 16:06:01,183 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 123 flow. Second operand 3 states and 39 transitions. [2024-06-21 16:06:01,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 211 flow [2024-06-21 16:06:01,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-21 16:06:01,186 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 146 flow [2024-06-21 16:06:01,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2024-06-21 16:06:01,190 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2024-06-21 16:06:01,190 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 146 flow [2024-06-21 16:06:01,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 16:06:01,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:01,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:01,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-21 16:06:01,194 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 16:06:01,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash -622833392, now seen corresponding path program 1 times [2024-06-21 16:06:01,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:01,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761004012] [2024-06-21 16:06:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:01,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:01,342 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 16:06:01,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:01,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761004012] [2024-06-21 16:06:01,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761004012] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:01,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:01,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 16:06:01,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210449366] [2024-06-21 16:06:01,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:01,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 16:06:01,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:01,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 16:06:01,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-21 16:06:01,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-21 16:06:01,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:06:01,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:01,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-21 16:06:01,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:01,404 INFO L124 PetriNetUnfolderBase]: 33/71 cut-off events. [2024-06-21 16:06:01,404 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-06-21 16:06:01,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 71 events. 33/71 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 146 event pairs, 9 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 291. Up to 43 conditions per place. [2024-06-21 16:06:01,406 INFO L140 encePairwiseOnDemand]: 21/24 looper letters, 21 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2024-06-21 16:06:01,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 208 flow [2024-06-21 16:06:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:06:01,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:06:01,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2024-06-21 16:06:01,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2024-06-21 16:06:01,408 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 146 flow. Second operand 3 states and 35 transitions. [2024-06-21 16:06:01,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 208 flow [2024-06-21 16:06:01,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 203 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 16:06:01,411 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 158 flow [2024-06-21 16:06:01,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2024-06-21 16:06:01,413 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2024-06-21 16:06:01,413 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 158 flow [2024-06-21 16:06:01,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:06:01,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:01,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:01,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-21 16:06:01,414 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 16:06:01,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash -622832431, now seen corresponding path program 1 times [2024-06-21 16:06:01,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:01,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817790952] [2024-06-21 16:06:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:01,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 16:06:01,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:01,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817790952] [2024-06-21 16:06:01,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817790952] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:01,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:01,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 16:06:01,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812018987] [2024-06-21 16:06:01,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:01,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 16:06:01,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 16:06:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-21 16:06:01,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-21 16:06:01,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:06:01,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:01,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-21 16:06:01,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:01,574 INFO L124 PetriNetUnfolderBase]: 32/69 cut-off events. [2024-06-21 16:06:01,575 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2024-06-21 16:06:01,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 69 events. 32/69 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 140 event pairs, 6 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 291. Up to 43 conditions per place. [2024-06-21 16:06:01,576 INFO L140 encePairwiseOnDemand]: 21/24 looper letters, 24 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2024-06-21 16:06:01,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 234 flow [2024-06-21 16:06:01,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:06:01,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:06:01,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2024-06-21 16:06:01,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-06-21 16:06:01,577 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 158 flow. Second operand 3 states and 38 transitions. [2024-06-21 16:06:01,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 234 flow [2024-06-21 16:06:01,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-21 16:06:01,578 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 165 flow [2024-06-21 16:06:01,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2024-06-21 16:06:01,579 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2024-06-21 16:06:01,579 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 165 flow [2024-06-21 16:06:01,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:06:01,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:06:01,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:01,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-21 16:06:01,580 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 16:06:01,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:06:01,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2127966118, now seen corresponding path program 1 times [2024-06-21 16:06:01,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:06:01,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559089763] [2024-06-21 16:06:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:06:01,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:06:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:06:01,836 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 16:06:01,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:06:01,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559089763] [2024-06-21 16:06:01,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559089763] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:06:01,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:06:01,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 16:06:01,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131061924] [2024-06-21 16:06:01,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:06:01,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 16:06:01,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:06:01,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 16:06:01,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 16:06:01,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-21 16:06:01,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 16:06:01,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:06:01,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-21 16:06:01,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:06:01,935 INFO L124 PetriNetUnfolderBase]: 32/68 cut-off events. [2024-06-21 16:06:01,935 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2024-06-21 16:06:01,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 68 events. 32/68 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs, 6 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 303. Up to 41 conditions per place. [2024-06-21 16:06:01,937 INFO L140 encePairwiseOnDemand]: 21/24 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-06-21 16:06:01,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 223 flow [2024-06-21 16:06:01,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 16:06:01,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 16:06:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2024-06-21 16:06:01,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-06-21 16:06:01,940 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 165 flow. Second operand 4 states and 42 transitions. [2024-06-21 16:06:01,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 223 flow [2024-06-21 16:06:01,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 198 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-21 16:06:01,945 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2024-06-21 16:06:01,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2024-06-21 16:06:01,946 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2024-06-21 16:06:01,946 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2024-06-21 16:06:01,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 16:06:01,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-21 16:06:01,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-21 16:06:01,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-21 16:06:01,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-21 16:06:01,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-21 16:06:01,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-21 16:06:01,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-21 16:06:01,949 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:06:01,951 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-21 16:06:01,951 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-21 16:06:01,954 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-21 16:06:01,954 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-21 16:06:01,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 04:06:01 BasicIcfg [2024-06-21 16:06:01,955 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-21 16:06:01,955 INFO L158 Benchmark]: Toolchain (without parser) took 2968.54ms. Allocated memory was 138.4MB in the beginning and 224.4MB in the end (delta: 86.0MB). Free memory was 63.0MB in the beginning and 155.2MB in the end (delta: -92.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 16:06:01,955 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 16:06:01,956 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 109.0MB in the end (delta: 117.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 16:06:01,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.85ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 62.8MB in the beginning and 148.6MB in the end (delta: -85.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-06-21 16:06:01,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.39ms. Allocated memory is still 186.6MB. Free memory was 147.5MB in the beginning and 146.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 16:06:01,956 INFO L158 Benchmark]: Boogie Preprocessor took 62.72ms. Allocated memory is still 186.6MB. Free memory was 146.4MB in the beginning and 144.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 16:06:01,956 INFO L158 Benchmark]: RCFGBuilder took 397.73ms. Allocated memory is still 186.6MB. Free memory was 144.4MB in the beginning and 118.2MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-21 16:06:01,957 INFO L158 Benchmark]: TraceAbstraction took 2234.72ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 117.1MB in the beginning and 155.2MB in the end (delta: -38.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 16:06:01,958 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 138.4MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 109.0MB in the end (delta: 117.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.85ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 62.8MB in the beginning and 148.6MB in the end (delta: -85.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.39ms. Allocated memory is still 186.6MB. Free memory was 147.5MB in the beginning and 146.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.72ms. Allocated memory is still 186.6MB. Free memory was 146.4MB in the beginning and 144.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.73ms. Allocated memory is still 186.6MB. Free memory was 144.4MB in the beginning and 118.2MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2234.72ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 117.1MB in the beginning and 155.2MB in the end (delta: -38.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 69]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 70]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 71]: 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, 34 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: 2.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 318 IncrementalHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 13 mSDtfsCounter, 318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=7, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-21 16:06:01,983 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