./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/mutex-meet/chl-sre-symm.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 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-symm.wvr.c ./goblint.2024-05-07_14-17-48.files/mutex-meet/chl-sre-symm.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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-b44c828-m [2024-05-12 10:50:15,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 10:50:15,209 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 10:50:15,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 10:50:15,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 10:50:15,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 10:50:15,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 10:50:15,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 10:50:15,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 10:50:15,258 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 10:50:15,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 10:50:15,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 10:50:15,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 10:50:15,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 10:50:15,262 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 10:50:15,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 10:50:15,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 10:50:15,262 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 10:50:15,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 10:50:15,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 10:50:15,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 10:50:15,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 10:50:15,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 10:50:15,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 10:50:15,265 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 10:50:15,265 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 10:50:15,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 10:50:15,265 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 10:50:15,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 10:50:15,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 10:50:15,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 10:50:15,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 10:50:15,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:50:15,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 10:50:15,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 10:50:15,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 10:50:15,269 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 10:50:15,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 10:50:15,269 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 10:50:15,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 10:50:15,270 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 10:50:15,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 10:50:15,270 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 10:50:15,271 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 10:50:15,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 10:50:15,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 10:50:15,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 10:50:15,606 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 10:50:15,606 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 10:50:15,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2024-05-12 10:50:16,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 10:50:16,945 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 10:50:16,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2024-05-12 10:50:16,953 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c400fab72/d35e317af97546ddb0b34fad6450db5a/FLAGd39b1831c [2024-05-12 10:50:16,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c400fab72/d35e317af97546ddb0b34fad6450db5a [2024-05-12 10:50:16,974 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 10:50:16,974 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 10:50:16,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/mutex-meet/chl-sre-symm.wvr.yml/witness.yml [2024-05-12 10:50:17,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 10:50:17,057 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 10:50:17,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 10:50:17,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 10:50:17,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 10:50:17,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:50:16" (1/2) ... [2024-05-12 10:50:17,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7460e870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:50:17, skipping insertion in model container [2024-05-12 10:50:17,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:50:16" (1/2) ... [2024-05-12 10:50:17,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@596ed996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:50:17, skipping insertion in model container [2024-05-12 10:50:17,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:50:17" (2/2) ... [2024-05-12 10:50:17,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7460e870 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17, skipping insertion in model container [2024-05-12 10:50:17,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:50:17" (2/2) ... [2024-05-12 10:50:17,070 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 10:50:17,083 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 10:50:17,084 INFO L97 edCorrectnessWitness]: Location invariant before [L63-L63] (! multithreaded || ((((-128 <= result_3 && -1 <= result_3) && result_3 <= 1) && result_3 <= 127) && ((result_3 == -1 || result_3 == 0) || result_3 == 1))) && (! multithreaded || ((((-128 <= result_2 && -1 <= result_2) && result_2 <= 1) && result_2 <= 127) && ((result_2 == -1 || result_2 == 0) || result_2 == 1))) [2024-05-12 10:50:17,085 INFO L97 edCorrectnessWitness]: Location invariant before [L62-L62] (! multithreaded || ((((-128 <= result_3 && -1 <= result_3) && result_3 <= 1) && result_3 <= 127) && ((result_3 == -1 || result_3 == 0) || result_3 == 1))) && (! multithreaded || ((((-128 <= result_2 && -1 <= result_2) && result_2 <= 1) && result_2 <= 127) && ((result_2 == -1 || result_2 == 0) || result_2 == 1))) [2024-05-12 10:50:17,085 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 10:50:17,085 INFO L106 edCorrectnessWitness]: ghost_update [L61-L61] multithreaded = 1; [2024-05-12 10:50:17,103 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 10:50:17,263 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c[2133,2146] [2024-05-12 10:50:17,268 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:50:17,277 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 10:50:17,326 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c[2133,2146] [2024-05-12 10:50:17,327 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:50:17,343 INFO L206 MainTranslator]: Completed translation [2024-05-12 10:50:17,343 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17 WrapperNode [2024-05-12 10:50:17,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 10:50:17,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 10:50:17,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 10:50:17,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 10:50:17,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,403 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-05-12 10:50:17,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 10:50:17,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 10:50:17,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 10:50:17,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 10:50:17,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,461 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-05-12 10:50:17,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,471 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 10:50:17,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 10:50:17,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 10:50:17,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 10:50:17,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (1/1) ... [2024-05-12 10:50:17,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:50:17,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 10:50:17,506 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) [2024-05-12 10:50:17,521 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 [2024-05-12 10:50:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 10:50:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-12 10:50:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-12 10:50:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-12 10:50:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-12 10:50:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 10:50:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 10:50:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 10:50:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 10:50:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 10:50:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 10:50:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 10:50:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 10:50:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 10:50:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 10:50:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 10:50:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 10:50:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 10:50:17,555 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 10:50:17,635 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 10:50:17,637 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 10:50:17,796 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 10:50:17,797 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 10:50:17,923 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 10:50:17,923 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 10:50:17,923 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:50:17 BoogieIcfgContainer [2024-05-12 10:50:17,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 10:50:17,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 10:50:17,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 10:50:17,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 10:50:17,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 10:50:16" (1/4) ... [2024-05-12 10:50:17,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13507a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 10:50:17, skipping insertion in model container [2024-05-12 10:50:17,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:50:17" (2/4) ... [2024-05-12 10:50:17,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13507a10 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 10:50:17, skipping insertion in model container [2024-05-12 10:50:17,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:50:17" (3/4) ... [2024-05-12 10:50:17,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13507a10 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 10:50:17, skipping insertion in model container [2024-05-12 10:50:17,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:50:17" (4/4) ... [2024-05-12 10:50:17,932 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2024-05-12 10:50:17,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 10:50:17,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-05-12 10:50:17,949 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 10:50:17,994 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-12 10:50:18,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 56 flow [2024-05-12 10:50:18,061 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-05-12 10:50:18,061 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-05-12 10:50:18,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 19 events. 0/19 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-05-12 10:50:18,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 21 transitions, 56 flow [2024-05-12 10:50:18,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 18 transitions, 48 flow [2024-05-12 10:50:18,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 10:50:18,096 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;@790a04b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 10:50:18,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-12 10:50:18,111 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 10:50:18,115 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-05-12 10:50:18,116 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 10:50:18,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:50:18,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 10:50:18,117 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:50:18,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:50:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1731011616, now seen corresponding path program 1 times [2024-05-12 10:50:18,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:50:18,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567994608] [2024-05-12 10:50:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:50:18,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:50:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:50:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:50:18,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:50:18,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567994608] [2024-05-12 10:50:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567994608] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:50:18,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:50:18,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 10:50:18,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516196264] [2024-05-12 10:50:18,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:50:18,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:50:18,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:50:18,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:50:18,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:50:18,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-05-12 10:50:18,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-05-12 10:50:18,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:50:18,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-05-12 10:50:18,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:50:18,591 INFO L124 PetriNetUnfolderBase]: 16/48 cut-off events. [2024-05-12 10:50:18,592 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-05-12 10:50:18,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 48 events. 16/48 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 3 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 74. Up to 39 conditions per place. [2024-05-12 10:50:18,595 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 21 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2024-05-12 10:50:18,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 113 flow [2024-05-12 10:50:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:50:18,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:50:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2024-05-12 10:50:18,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-05-12 10:50:18,609 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 48 flow. Second operand 3 states and 35 transitions. [2024-05-12 10:50:18,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 113 flow [2024-05-12 10:50:18,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 25 transitions, 103 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-05-12 10:50:18,616 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 61 flow [2024-05-12 10:50:18,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2024-05-12 10:50:18,625 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2024-05-12 10:50:18,625 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 61 flow [2024-05-12 10:50:18,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-05-12 10:50:18,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:50:18,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:50:18,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 10:50:18,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:50:18,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:50:18,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2121753056, now seen corresponding path program 1 times [2024-05-12 10:50:18,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:50:18,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732499719] [2024-05-12 10:50:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:50:18,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:50:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:50:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:50:19,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:50:19,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732499719] [2024-05-12 10:50:19,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732499719] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:50:19,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:50:19,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 10:50:19,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443607207] [2024-05-12 10:50:19,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:50:19,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 10:50:19,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:50:19,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 10:50:19,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-05-12 10:50:19,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-05-12 10:50:19,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2024-05-12 10:50:19,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:50:19,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-05-12 10:50:19,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:50:19,101 INFO L124 PetriNetUnfolderBase]: 15/45 cut-off events. [2024-05-12 10:50:19,101 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-05-12 10:50:19,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 45 events. 15/45 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 5 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 46. Up to 23 conditions per place. [2024-05-12 10:50:19,103 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 19 selfloop transitions, 3 changer transitions 0/23 dead transitions. [2024-05-12 10:50:19,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 23 transitions, 110 flow [2024-05-12 10:50:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:50:19,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:50:19,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2024-05-12 10:50:19,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2024-05-12 10:50:19,106 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 61 flow. Second operand 3 states and 32 transitions. [2024-05-12 10:50:19,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 23 transitions, 110 flow [2024-05-12 10:50:19,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 23 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 10:50:19,108 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 65 flow [2024-05-12 10:50:19,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2024-05-12 10:50:19,111 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-05-12 10:50:19,112 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 65 flow [2024-05-12 10:50:19,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2024-05-12 10:50:19,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:50:19,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:50:19,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 10:50:19,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:50:19,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:50:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash 103012484, now seen corresponding path program 1 times [2024-05-12 10:50:19,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:50:19,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842280694] [2024-05-12 10:50:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:50:19,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:50:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:50:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:50:19,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:50:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842280694] [2024-05-12 10:50:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842280694] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:50:19,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:50:19,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 10:50:19,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359295910] [2024-05-12 10:50:19,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:50:19,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 10:50:19,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:50:19,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 10:50:19,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-05-12 10:50:19,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-05-12 10:50:19,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-05-12 10:50:19,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:50:19,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-05-12 10:50:19,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:50:19,379 INFO L124 PetriNetUnfolderBase]: 14/43 cut-off events. [2024-05-12 10:50:19,380 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-05-12 10:50:19,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 43 events. 14/43 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 61 event pairs, 4 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 51. Up to 29 conditions per place. [2024-05-12 10:50:19,381 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 20 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2024-05-12 10:50:19,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 122 flow [2024-05-12 10:50:19,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:50:19,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:50:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2024-05-12 10:50:19,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2024-05-12 10:50:19,384 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 65 flow. Second operand 3 states and 32 transitions. [2024-05-12 10:50:19,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 122 flow [2024-05-12 10:50:19,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:50:19,388 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 70 flow [2024-05-12 10:50:19,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2024-05-12 10:50:19,389 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2024-05-12 10:50:19,389 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 70 flow [2024-05-12 10:50:19,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-05-12 10:50:19,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:50:19,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:50:19,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 10:50:19,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:50:19,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:50:19,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1101580530, now seen corresponding path program 1 times [2024-05-12 10:50:19,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:50:19,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875939366] [2024-05-12 10:50:19,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:50:19,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:50:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:50:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:50:19,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:50:19,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875939366] [2024-05-12 10:50:19,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875939366] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:50:19,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:50:19,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 10:50:19,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597315744] [2024-05-12 10:50:19,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:50:19,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 10:50:19,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:50:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 10:50:19,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 10:50:19,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-05-12 10:50:19,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-05-12 10:50:19,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:50:19,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-05-12 10:50:19,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:50:20,018 INFO L124 PetriNetUnfolderBase]: 13/50 cut-off events. [2024-05-12 10:50:20,019 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-05-12 10:50:20,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 50 events. 13/50 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 34. Up to 23 conditions per place. [2024-05-12 10:50:20,021 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 26 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2024-05-12 10:50:20,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 161 flow [2024-05-12 10:50:20,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 10:50:20,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 10:50:20,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2024-05-12 10:50:20,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44761904761904764 [2024-05-12 10:50:20,024 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 70 flow. Second operand 5 states and 47 transitions. [2024-05-12 10:50:20,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 161 flow [2024-05-12 10:50:20,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 32 transitions, 155 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:50:20,027 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 77 flow [2024-05-12 10:50:20,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2024-05-12 10:50:20,029 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2024-05-12 10:50:20,030 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 77 flow [2024-05-12 10:50:20,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-05-12 10:50:20,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:50:20,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:50:20,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 10:50:20,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:50:20,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:50:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1101579600, now seen corresponding path program 2 times [2024-05-12 10:50:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:50:20,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985489477] [2024-05-12 10:50:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:50:20,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:50:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:50:20,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:50:20,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:50:20,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985489477] [2024-05-12 10:50:20,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985489477] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:50:20,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:50:20,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 10:50:20,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170135662] [2024-05-12 10:50:20,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:50:20,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 10:50:20,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:50:20,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 10:50:20,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 10:50:20,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2024-05-12 10:50:20,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-05-12 10:50:20,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:50:20,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2024-05-12 10:50:20,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:50:20,306 INFO L124 PetriNetUnfolderBase]: 13/49 cut-off events. [2024-05-12 10:50:20,306 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-05-12 10:50:20,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 49 events. 13/49 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 82 event pairs, 5 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 114. Up to 25 conditions per place. [2024-05-12 10:50:20,307 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 18 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2024-05-12 10:50:20,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 118 flow [2024-05-12 10:50:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 10:50:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 10:50:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2024-05-12 10:50:20,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-05-12 10:50:20,309 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 77 flow. Second operand 4 states and 33 transitions. [2024-05-12 10:50:20,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 118 flow [2024-05-12 10:50:20,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 101 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-05-12 10:50:20,310 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 56 flow [2024-05-12 10:50:20,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2024-05-12 10:50:20,311 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2024-05-12 10:50:20,311 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 56 flow [2024-05-12 10:50:20,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-05-12 10:50:20,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:50:20,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:50:20,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 10:50:20,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:50:20,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:50:20,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1791893162, now seen corresponding path program 1 times [2024-05-12 10:50:20,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:50:20,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168051340] [2024-05-12 10:50:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:50:20,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:50:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:50:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:50:20,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:50:20,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168051340] [2024-05-12 10:50:20,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168051340] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:50:20,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:50:20,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-12 10:50:20,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656580526] [2024-05-12 10:50:20,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:50:20,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 10:50:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:50:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 10:50:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-05-12 10:50:21,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-05-12 10:50:21,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 56 flow. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-05-12 10:50:21,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:50:21,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-05-12 10:50:21,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:50:21,192 INFO L124 PetriNetUnfolderBase]: 13/47 cut-off events. [2024-05-12 10:50:21,193 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-05-12 10:50:21,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 47 events. 13/47 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 89 event pairs, 0 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 51. Up to 22 conditions per place. [2024-05-12 10:50:21,194 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 15 selfloop transitions, 4 changer transitions 10/30 dead transitions. [2024-05-12 10:50:21,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 141 flow [2024-05-12 10:50:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-12 10:50:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-05-12 10:50:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 65 transitions. [2024-05-12 10:50:21,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4421768707482993 [2024-05-12 10:50:21,197 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 56 flow. Second operand 7 states and 65 transitions. [2024-05-12 10:50:21,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 141 flow [2024-05-12 10:50:21,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:50:21,199 INFO L231 Difference]: Finished difference. Result has 31 places, 16 transitions, 53 flow [2024-05-12 10:50:21,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=53, PETRI_PLACES=31, PETRI_TRANSITIONS=16} [2024-05-12 10:50:21,200 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2024-05-12 10:50:21,200 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 53 flow [2024-05-12 10:50:21,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-05-12 10:50:21,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:50:21,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:50:21,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-12 10:50:21,201 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:50:21,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:50:21,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1007889110, now seen corresponding path program 2 times [2024-05-12 10:50:21,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:50:21,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671367680] [2024-05-12 10:50:21,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:50:21,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:50:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:50:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:50:21,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:50:21,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671367680] [2024-05-12 10:50:21,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671367680] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:50:21,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:50:21,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 10:50:21,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411443150] [2024-05-12 10:50:21,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:50:21,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 10:50:21,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:50:21,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 10:50:21,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 10:50:21,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-05-12 10:50:21,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-05-12 10:50:21,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:50:21,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-05-12 10:50:21,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:50:21,644 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2024-05-12 10:50:21,645 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-05-12 10:50:21,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 22 events. 4/22 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 64. Up to 9 conditions per place. [2024-05-12 10:50:21,645 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-05-12 10:50:21,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 18 transitions, 91 flow [2024-05-12 10:50:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 10:50:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 10:50:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 44 transitions. [2024-05-12 10:50:21,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-05-12 10:50:21,647 INFO L175 Difference]: Start difference. First operand has 31 places, 16 transitions, 53 flow. Second operand 5 states and 44 transitions. [2024-05-12 10:50:21,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 18 transitions, 91 flow [2024-05-12 10:50:21,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 77 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-05-12 10:50:21,648 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-05-12 10:50:21,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2024-05-12 10:50:21,650 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2024-05-12 10:50:21,650 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-05-12 10:50:21,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-05-12 10:50:21,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-05-12 10:50:21,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-05-12 10:50:21,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-05-12 10:50:21,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-05-12 10:50:21,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-05-12 10:50:21,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-12 10:50:21,655 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-05-12 10:50:21,658 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 10:50:21,658 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 10:50:21,662 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-05-12 10:50:21,662 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-05-12 10:50:21,663 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 10:50:21 BasicIcfg [2024-05-12 10:50:21,663 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 10:50:21,667 INFO L158 Benchmark]: Toolchain (without parser) took 4606.44ms. Allocated memory was 159.4MB in the beginning and 241.2MB in the end (delta: 81.8MB). Free memory was 103.0MB in the beginning and 184.5MB in the end (delta: -81.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:50:21,669 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 59.0MB in the beginning and 59.0MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:50:21,670 INFO L158 Benchmark]: Witness Parser took 0.49ms. Allocated memory is still 159.4MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:50:21,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.68ms. Allocated memory is still 159.4MB. Free memory was 103.0MB in the beginning and 88.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-05-12 10:50:21,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.10ms. Allocated memory is still 159.4MB. Free memory was 88.8MB in the beginning and 130.0MB in the end (delta: -41.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-05-12 10:50:21,670 INFO L158 Benchmark]: Boogie Preprocessor took 64.71ms. Allocated memory is still 159.4MB. Free memory was 130.0MB in the beginning and 128.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 10:50:21,671 INFO L158 Benchmark]: RCFGBuilder took 449.85ms. Allocated memory is still 159.4MB. Free memory was 128.4MB in the beginning and 103.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-05-12 10:50:21,671 INFO L158 Benchmark]: TraceAbstraction took 3737.63ms. Allocated memory was 159.4MB in the beginning and 241.2MB in the end (delta: 81.8MB). Free memory was 102.3MB in the beginning and 184.5MB in the end (delta: -82.3MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2024-05-12 10:50:21,673 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 59.0MB in the beginning and 59.0MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.49ms. Allocated memory is still 159.4MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.68ms. Allocated memory is still 159.4MB. Free memory was 103.0MB in the beginning and 88.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.10ms. Allocated memory is still 159.4MB. Free memory was 88.8MB in the beginning and 130.0MB in the end (delta: -41.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.71ms. Allocated memory is still 159.4MB. Free memory was 130.0MB in the beginning and 128.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.85ms. Allocated memory is still 159.4MB. Free memory was 128.4MB in the beginning and 103.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3737.63ms. Allocated memory was 159.4MB in the beginning and 241.2MB in the end (delta: 81.8MB). Free memory was 102.3MB in the beginning and 184.5MB in the end (delta: -82.3MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 62]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 63]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 69]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 28 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 304 IncrementalHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 3 mSDtfsCounter, 304 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=4, InterpolantAutomatonStates: 30, 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, 2.3s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 1213 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-05-12 10:50:21,714 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